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Note: This page contains sample records for the topic "organic compounds tetraphenylborate" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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1

PROCESSING ALTERNATIVES FOR DESTRUCTION OF TETRAPHENYLBORATE  

SciTech Connect (OSTI)

Two processes were chosen in the 1980's at the Savannah River Site (SRS) to decontaminate the soluble High Level Waste (HLW). The In Tank Precipitation (ITP) process (1,2) was developed at SRS for the removal of radioactive cesium and actinides from the soluble HLW. Sodium tetraphenylborate was added to the waste to precipitate cesium and monosodium titanate (MST) was added to adsorb actinides, primarily uranium and plutonium. Two products of this process were a low activity waste stream and a concentrated organic stream containing cesium tetraphenylborate and actinides adsorbed on monosodium titanate (MST). A copper catalyzed acid hydrolysis process was built to process (3, 4) the Tank 48H cesium tetraphenylborate waste in the SRS's Defense Waste Processing Facility (DWPF). Operation of the DWPF would have resulted in the production of benzene for incineration in SRS's Consolidated Incineration Facility. This process was abandoned together with the ITP process in 1998 due to high benzene in ITP caused by decomposition of excess sodium tetraphenylborate. Processing in ITP resulted in the production of approximately 1.0 million liters of HLW. SRS has chosen a solvent extraction process combined with adsorption of the actinides to decontaminate the soluble HLW stream (5). However, the waste in Tank 48H is incompatible with existing waste processing facilities. As a result, a processing facility is needed to disposition the HLW in Tank 48H. This paper will describe the process for searching for processing options by SRS task teams for the disposition of the waste in Tank 48H. In addition, attempts to develop a caustic hydrolysis process for in tank destruction of tetraphenylborate will be presented. Lastly, the development of both a caustic and acidic copper catalyzed peroxide oxidation process will be discussed.

Lambert, D; Thomas Peters, T; Samuel Fink, S

2007-02-27T23:59:59.000Z

2

Pulse radiolysis of solutions of sodium tetraphenylborate  

SciTech Connect (OSTI)

Pulse radiolysis of solutions of sodium tetraphenylborate (NaBPh/sub 4/) indicates that the absorption observed in organic amides with lambda/sub max/ in the range 650-724 nm is not due to Na/sup -/, an electron adduct to BPh/sub 4//sup -/, a triplet excited state, or a proton-donating solvent cation. Experiments in aqueous solution are described in which the reactions of selected radicals with NaBPh/sub 4/ are studied. One-electron oxidation of NaBPh/sub 4/ by N/sub 3//sup .-/ radicals yields a species, assumed to be NaBPh/sub 4//sup ./, with absorption maxima at 335 and 800 nm. A similar spectrum is observed on pulse radiolysis of solutions of NaBPh/sub 4/ in tetramethylurea (TMU), but the long-wavelength absorption is shifted to 725 nm. The formation of an oxidizing radical in irradiated TMU was confirmed by the observation of I/sub 2//sup .-/ on pulse radiolysis of solutions of KI in this solvent. Pulse radiolysis of solution of NaBPh/sub 4/ and KI in TMU demonstrated that these solutes compete for the oxidizing intermediate.

Liu, K.J.; Langan, J.R.; Salmon, G.A.; Holton, D.M.; Edwards, P.P.

1988-05-05T23:59:59.000Z

3

Volatile organic compound sensing devices  

DOE Patents [OSTI]

Apparatus employing vapochromic materials in the form of inorganic double complex salts which change color reversibly when exposed to volatile organic compound (VOC) vapors is adapted for VOC vapor detection, VOC aqueous matrix detection, and selective VOC vapor detection. The basic VOC vapochromic sensor is incorporated in various devices such as a ground probe sensor, a wristband sensor, a periodic sampling monitor, a soil/water penetrometer, an evaporative purge sensor, and various vacuum-based sensors which are particularly adapted for reversible/reusable detection, remote detection, continuous monitoring, or rapid screening of environmental remediation and waste management sites. The vapochromic sensor is used in combination with various fiber optic arrangements to provide a calibrated qualitative and/or quantitative indication of the presence of VOCs.

Lancaster, Gregory D. (Idaho Falls, ID); Moore, Glenn A. (Idaho Falls, ID); Stone, Mark L. (Idaho Falls, ID); Reagen, William K. (Stillwater, MN)

1995-01-01T23:59:59.000Z

4

Volatile organic compound sensing devices  

DOE Patents [OSTI]

Apparatus employing vapochromic materials in the form of inorganic double complex salts which change color reversibly when exposed to volatile organic compound (VOC) vapors is adapted for VOC vapor detection, VOC aqueous matrix detection, and selective VOC vapor detection. The basic VOC vapochromic sensor is incorporated in various devices such as a ground probe sensor, a wristband sensor, a periodic sampling monitor, a soil/water penetrometer, an evaporative purge sensor, and various vacuum-based sensors which are particularly adapted for reversible/reusable detection, remote detection, continuous monitoring, or rapid screening of environmental remediation and waste management sites. The vapochromic sensor is used in combination with various fiber optic arrangements to provide a calibrated qualitative and/or quantitative indication of the presence of VOCs. 15 figs.

Lancaster, G.D.; Moore, G.A.; Stone, M.L.; Reagen, W.K.

1995-08-29T23:59:59.000Z

5

Volatile Organic Compounds — Emissions from Biomass Combustion  

Science Journals Connector (OSTI)

The emissions of Volatile Organic Compounds (VOC) from biomass combustion have been investigated. VOC contribute both to ... 0.5–10 MW. A variety of biomass fuel types and combustion equipment was covered. The su...

Lennart Gustavsson; Mats-Lennart Karlsson

1993-01-01T23:59:59.000Z

6

Alkylation of organic aromatic compounds  

DOE Patents [OSTI]

Aromatic compounds are alkylated in a catalytic distillation, wherein the catalyst structure also serves as a distillation component by contacting the aromatic compound with a C[sub 2] to C[sub 10] olefin in the catalyst bed under 0.25 to 50 atmospheres of pressure and at temperatures in the range of 80 C to 500 C, using as the catalyst a mole sieve characterized as acidic or an acidic cation exchange resin. For example, ethyl benzene is produced by feeding ethylene below the catalyst bed while benzene is conveniently added through the reflux in molar excess to that required to react with ethylene, thereby reacting substantially all of the ethylene and recovering benzene as the principal overhead and ethyl benzene in the bottoms. 1 fig.

Smith, L.A. Jr.

1989-07-18T23:59:59.000Z

7

Alkylation of organic aromatic compounds  

DOE Patents [OSTI]

Aromatic compounds are alkylated in a catalytic distillation, wherein the catalyst structure also serves as a distillation component by contacting the aromatic compound with a C.sub.2 to C.sub.10 olefin in the catalyst bed under 0.25 to 50 atmospheres of pressure and at temperatures in the range of 80.degree. C. to 500.degree. C., using as the catalyst a mole sieve characterized as acidic or an acidic cation exchange resin. For example, ethyl benzene is produced by feeding ethylene below the catalyst bed while benzene is conveniently added through the reflux in molar excess to that required to react with ethylene, thereby reacting substantially all of the ethylene and recovering benzene as the principal overhead and ethyl benzene in the bottoms.

Smith, Jr., Lawrence A. (Houston, TX)

1989-01-01T23:59:59.000Z

8

Alkylation of organic aromatic compounds  

DOE Patents [OSTI]

Aromatic compounds are alkylated in a catalytic distillation, wherein the catalyst structure also serves as a distillation component by contacting the aromatic compound with a C.sub.2 to C.sub.10 olefin in the catalyst bed under 0.25 to 50 atmospheres of pressure and at temperatures in the range of 80.degree. C. to 500.degree. C., using as the catalyst a mole sieve characterized as acidic or an acidic cation exchange resin. For example, ethyl benzene is produced by feeding ethylene below the catalyst bed while benzene is conveniently added through the reflux in molar excess to that required to react with ethylene, thereby reacting substantially all of the ethylene and recovering benzene as the principal overhead and ethyl benzene in the bottoms.

Smith, Jr., Lawrence A. (Bellaire, TX); Arganbright, Robert P. (Seabrook, TX); Hearn, Dennis (Houston, TX)

1994-01-01T23:59:59.000Z

9

Alkylation of organic aromatic compounds  

DOE Patents [OSTI]

Aromatic compounds are alkylated in a catalytic distillation, wherein the catalyst structure also serves as a distillation component by contacting the aromatic compound with a C[sub 2] to C[sub 10] olefin in the catalyst bed under 0.25 to 50 atmospheres of pressure and at temperatures in the range of 80 C to 500 C, using as the catalyst a molecular sieve characterized as acidic or an acidic cation exchange resin. For example, ethyl benzene is produced by feeding ethylene to about the mid point of the catalyst bed while benzene is conveniently added through the reflux in molar excess to that required to react with ethylene, thereby reacting substantially all of the ethylene and recovering benzene as the principal overhead and ethyl benzene in the bottoms. 1 figures.

Smith, L.A. Jr.; Arganbright, R.P.; Hearn, D.

1993-09-07T23:59:59.000Z

10

Alkylation of organic aromatic compounds  

DOE Patents [OSTI]

Aromatic compounds are alkylated in a catalytic distillation, wherein the catalyst structure also serves as a distillation component by contacting the aromatic compound with a C[sub 2] to C[sub 10] olefin in the catalyst bed under 0.25 to 50 atmospheres of pressure and at temperatures in the range of 80 C to 500 C, using as the catalyst a molecular sieve characterized as acidic or an acidic cation exchange resin. For example, ethyl benzene is produced by feeding ethylene below the catalyst bed while benzene is conveniently added through the reflux in molar excess to that required to react with ethylene, thereby reacting substantially all of the ethylene and recovering benzene as the principal overhead and ethyl benzene in the bottoms. 1 fig.

Smith, L.A. Jr.; Arganbright, R.P.; Hearn, D.

1994-06-14T23:59:59.000Z

11

Alkylation of organic aromatic compounds  

DOE Patents [OSTI]

Aromatic compounds are alkylated in a catalytic distillation, wherein the catalyst structure also serves as a distillation component by contacting the aromatic compound with a C.sub.2 to C.sub.10 olefin in the catalyst bed under 0.25 to 50 atmospheres of pressure and at temperatures in the range of 80.degree. C. to 500.degree. C., using as the catalyst a mole sieve characterized as acidic or an acidic cation exchange resin. For example, ethyl benzene is produced by feeding ethylene to about the mid point of the catalyst bed while benzene is conveniently added through the reflux in molar excess to that required to react with ethylene, thereby reacting substantially all of the ethylene and recovering benzene as the principal overhead and ethyl benzene in the bottoms.

Smith, Jr., Lawrence A. (Bellaire, TX); Arganbright, Robert P. (Seabrook, TX); Hearn, Dennis (Houston, TX)

1993-01-01T23:59:59.000Z

12

Alkylation of organic aromatic compounds  

DOE Patents [OSTI]

Aromatic compounds are alkylated in a combination reactor/distillation column comprising a vessel suitable for operating between 70 C and 500 C and from 0.5 to 20 atmospheres pressure; an inert distillation packing in the lower one-third of said vessel; solid acidic catalytic material such as zeolites or an acidic cation exchange resin supported in the middle one-third of said vessel; and inert distillation packing in the upper one-third of said vessel. A benzene inlet is located near the upper end of the vessel; an olefin inlet is juxtaposed with said solid acidic catalytic material; a bottoms outlet is positioned near the bottom of said vessel for removing said cumene and ethyl benzene; and an overhead outlet is placed at the top of said vessel for removing any unreacted benzene and olefin.

Smith, L.A. Jr.; Arganbright, R.P.; Hearn, D.

1993-01-05T23:59:59.000Z

13

Chlorinated organic compounds in urban river sediments  

SciTech Connect (OSTI)

Among anthropogenic chemicals, many chlorinated organic compounds have been used as insecticides and detected frequently as contaminants in urban river sediments so far. However, the number and total amount of chemicals produced commercially and used are increasing year by year, though each amount of chemicals is not so high. New types of contaminants in the environment may be detected by the use of newly developed chemicals. Chlorinated organic compounds in the urban river sediments around Tokyo and Kyoto, large cities in Japan, were surveyed and recent trends of contaminants were studied. Contaminants of the river sediments in industrial areas had a variety, but PCB (polychlorinated biphenyls) was detected in common in industrial areas. Concentration of PCB related well to the number of factories on both sides of rivers, although the use of PCB was stopped 20 years ago. In domestic areas, Triclosan (5-chloro-2-(2,4-dichlorophenoxy)-phenol) and Triclocarban (3,4,4{prime}-trichlorocarbanilide)(both are contained in soap or shampoo for fungicides), p-dichlorobenzene (insecticides for wears) and TCEP(tris-chloroethyl phosphate) were detected. EOX(extracted organic halogen) in the sediments was 5 to 10 times of chlorinated organic compounds detected by GC/MS. Major part of organic halogen was suggested to be included in chlorinated organics formed by bleaching or sterilization.

Soma, Y.; Shiraishi, H.; Inaba, K. [National Inst. of Environmental Studies, Tsukuba, Ibaraki (Japan)

1995-12-31T23:59:59.000Z

14

Organic photosensitive devices using subphthalocyanine compounds  

DOE Patents [OSTI]

An organic photosensitive optoelectronic device, having a donor-acceptor heterojunction of a donor-like material and an acceptor-like material and methods of making such devices is provided. At least one of the donor-like material and the acceptor-like material includes a subphthalocyanine, a subporphyrin, and/or a subporphyrazine compound; and/or the device optionally has at least one of a blocking layer or a charge transport layer, where the blocking layer and/or the charge transport layer includes a subphthalocyanine, a subporphyrin, and/or a subporphyrazine compound.

Rand, Barry (Princeton, NJ); Forrest, Stephen R. (Ann Arbor, MI); Mutolo, Kristin L. (Hollywood, CA); Mayo, Elizabeth (Alhambra, CA); Thompson, Mark E. (Anaheim Hills, CA)

2011-07-05T23:59:59.000Z

15

Hydrogen-Evolving Organic Compounds - Energy Innovation Portal  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Energy Storage Energy Storage Find More Like This Return to Search Hydrogen-Evolving Organic Compounds Los Alamos National Laboratory Contact LANL About This Technology Technology...

16

FIELD SCREENING FOR HALOGENATED VOLATILE ORGANIC COMPOUNDS  

SciTech Connect (OSTI)

Western Research Institute (WRI) initiated exploratory work towards the development of new field screening methodology and a test kit to measure halogenated volatile organic compounds (VOCs) in the field. Heated diode and corona discharge sensors are commonly used to detect leaks of refrigerants from air conditioners, freezers, and refrigerators. They are both selective to the presence of carbon-halogen bonds. Commercially available heated diode and corona discharge leak detectors were procured and evaluated for halogenated VOC response. The units were modified to provide a digital readout of signal related to VOC concentration. Sensor response was evaluated with carbon tetrachloride and tetrachloroethylene (perchloroethylene, PCE), which represent halogenated VOCs with and without double bonds. The response characteristics were determined for the VOCs directly in headspace in Tedlar bag containers. Quantitation limits in air were estimated. Potential interferences from volatile hydrocarbons, such as toluene and heptane, were evaluated. The effect of humidity was studied also. The performance of the new devices was evaluated in the laboratory by spiking soil samples and monitoring headspace for halogenated VOCs. A draft concept of the steps for a new analytical method was outlined. The results of the first year effort show that both devices show potential utility for future analytical method development work towards the goal of developing a portable test kit for screening halogenated VOCs in the field.

John F. Schabron; Joseph F. Rovani Jr.; Theresa M. Bomstad

2002-06-01T23:59:59.000Z

17

Presence and Distribution of Organic Wastewater Compounds in Wastewater,  

E-Print Network [OSTI]

Presence and Distribution of Organic Wastewater Compounds in Wastewater, Surface, Ground.W., Meyer, M.T., and Zaugg, S.D., 2004, Presence and distri- bution of organic wastewater compounds in wastewater, surface, ground, and drinking waters, Minnesota, 2000-02: U.S. Geological Survey Scientific

18

DESTRUCTION OF TETRAPHENYLBORATE IN TANK 48H USING WET AIR OXIDATION BATCH BENCH SCALE AUTOCLAVE TESTING WITH ACTUAL RADIOACTIVE TANK 48H WASTE  

SciTech Connect (OSTI)

Wet Air Oxidation (WAO) is one of the two technologies being considered for the destruction of Tetraphenylborate (TPB) in Tank 48H. Batch bench-scale autoclave testing with radioactive (actual) Tank 48H waste is among the tests required in the WAO Technology Maturation Plan. The goal of the autoclave testing is to validate that the simulant being used for extensive WAO vendor testing adequately represents the Tank 48H waste. The test objective was to demonstrate comparable test results when running simulated waste and real waste under similar test conditions. Specifically: (1) Confirm the TPB destruction efficiency and rate (same reaction times) obtained from comparable simulant tests, (2) Determine the destruction efficiency of other organics including biphenyl, (3) Identify and quantify the reaction byproducts, and (4) Determine off-gas composition. Batch bench-scale stirred autoclave tests were conducted with simulated and actual Tank 48H wastes at SRNL. Experimental conditions were chosen based on continuous-flow pilot-scale simulant testing performed at Siemens Water Technologies Corporation (SWT) in Rothschild, Wisconsin. The following items were demonstrated as a result of this testing. (1) Tetraphenylborate was destroyed to below detection limits during the 1-hour reaction time at 280 C. Destruction efficiency of TPB was > 99.997%. (2) Other organics (TPB associated compounds), except biphenyl, were destroyed to below their respective detection limits. Biphenyl was partially destroyed in the process, mainly due to its propensity to reside in the vapor phase during the WAO reaction. Biphenyl is expected to be removed in the gas phase during the actual process, which is a continuous-flow system. (3) Reaction byproducts, remnants of MST, and the PUREX sludge, were characterized in this work. Radioactive species, such as Pu, Sr-90 and Cs-137 were quantified in the filtrate and slurry samples. Notably, Cs-137, boron and potassium were shown as soluble as a result of the WAO reaction. (4) Off-gas composition was measured in the resulting gas phase from the reaction. Benzene and hydrogen were formed during the reaction, but they were reasonably low in the off-gas at 0.096 and 0.0063 vol% respectively. Considering the consistency in replicating similar test results with simulated waste and Tank 48H waste under similar test conditions, the results confirm the validity of the simulant for other WAO test conditions.

Adu-Wusu, K; Paul Burket, P

2009-03-31T23:59:59.000Z

19

FIELD SCREENING FOR HALOGENATED VOLATILE ORGANIC COMPOUNDS  

SciTech Connect (OSTI)

Western Research Institute (WRI) is continuing work toward the development of new screening methodology and a test kit to measure halogenated volatile organic compounds (VOCs) in the field. Heated diode and corona discharge sensors are commonly used to detect leaks of refrigerants from air conditioners, freezers, and refrigerators. They are both selective to the presence of halogens. In prior work, the devices were tested for response to carbon tetrachloride, heptane, toluene, and water vapors. In the current work, sensor response was evaluated with sixteen halogenated VOCs relative to carbon tetrachloride. The results show that the response of the various chlorinated VOCs is within an order of magnitude of the response to carbon tetrachloride for each of the sensors. Thus, for field screening a single response factor can be used. Both types of leak detectors are being further modified to provide an on-board LCD signal readout, which is related to VOC concentration. The units will be fully portable and will operate with 115-V line or battery power. Signal background, noise level, and response data on the Bacharach heated diode detector and the TIF corona discharge detector show that when the response curves are plotted against the log of concentration, the plot is linear to the upper limit for the particular unit, with some curvature at lower levels. When response is plotted directly against concentration, the response is linear at the low end and is curved at the high end. The dynamic ranges for carbon tetrachloride of the two devices from the lower detection limit (S/N=2) to signal saturation are 4-850 vapor parts per million (vppm) for the corona discharge unit and 0.01-70 vppm for the heated diode unit. Additional circuit modifications are being made to lower the detection limit and increase the dynamic response range of the corona discharge unit. The results indicate that both devices show potential utility for future analytical method development work toward the goal of developing a portable test kit for screening halogenated VOCs in the field.

John F. Schabron; Joseph F. Rovani, Jr.; Theresa M. Bomstad

2003-07-01T23:59:59.000Z

20

Sorption to soil of hydrophobic and ionic organic compounds: measurement and modeling.  

E-Print Network [OSTI]

??The sorption of organic compounds to soil, sediments and dissolved organic matter affects the fate of organic compounds. Given the central role of this process… (more)

Laak, Thomas Laurens ter

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "organic compounds tetraphenylborate" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Dosimeter for monitoring vapors and aerosols of organic compounds  

DOE Patents [OSTI]

A dosimeter is provided for collecting and detecting vapors and aerosols of organic compounds. The dosimeter comprises a lightweight, passive device that can be conveniently worn by a person as a badge or placed at a stationary location. The dosimeter includes a sample collector comprising a porous web treated with a chemical for inducing molecular displacement and enhancing phosphorescence. Compounds are collected onto the web by molecular diffusion. The web also serves as the sample medium for detecting the compounds by a room temperature phosphorescence technique. 7 figs.

Vo-Dinh, T.

1987-07-14T23:59:59.000Z

22

TASK TECHNICAL AND QUALITY ASSURANCE PLAN FOR OUT-OF-TANK DESTRUCTION OF TETRAPHENYLBORATE VIA WET AIR OXIDATION TECHNOLOGY: PHASE I - BENCH SCALE TESTS  

SciTech Connect (OSTI)

Tank 48H return to service is critical to the processing of high level waste (HLW) at Savannah River Site (SRS). Liquid Waste Disposition (LWD) management has the goal of returning Tank 48H to routine service by January 2010 or as soon as practical. Tank 48H currently holds legacy material containing organic tetraphenylborate (TPB) compounds from the operation of the In-Tank Precipitation process. This material is not compatible with the waste treatment facilities at SRS and must be removed or undergo treatment to destroy the organic compounds before the tank can be returned to Tank Farm service. Tank 48H currently contains {approx}240,000 gallons of alkaline slurry with about 2 wt % potassium and cesium tetraphenylborate (KTPB and CsTPB). The main radioactive component in Tank 48H is {sup 137}Cs. The waste also contains {approx}0.15 wt % Monosodium Titanate (MST) which has adsorbed {sup 90}Sr, U, and Pu isotopes. A System Engineering Evaluation of technologies/ideas for the treatment of TPB identified Wet Air Oxidation (WAO) as a leading alternative technology to the baseline aggregation approach. Over 75 technologies/ideas were evaluated overall. Forty-one technologies/ideas passed the initial screening evaluation. The 41 technologies/ideas were then combined to 16 complete solutions for the disposition of TPB and evaluated in detail. Wet Air Oxidation (WAO) is an aqueous phase process in which soluble or suspended waste components are oxidized using molecular oxygen contained in air. The process operates at elevated temperatures and pressures ranging from 150 to 320 C and 7 to 210 atmospheres, respectively. The products of the reaction are CO{sub 2}, H{sub 2}O, and low molecular weight oxygenated organics (e.g. acetate, oxalate). The basic flow scheme for a typical WAO system is as follows. The waste solution or slurry is pumped through a high-pressure feed pump. An air stream containing sufficient oxygen to meet the oxygen requirements of the waste stream is injected into the pressurized waste stream, and the air/liquid mixture is preheated to the required reactor inlet temperature. The reactor provides sufficient retention time to allow the oxidation to approach the desired level of organic decomposition. Typical reaction time is about 30-120 minutes. Heat exchangers are routinely employed to recover energy contained in the reactor effluent to preheat the waste feed/air entering the reactor. Auxiliary energy, usually steam, is necessary for startup and can provide trim heat if required. Since the oxidation reactions are exothermic, sufficient energy may be released in the reactor to allow the WAO system to operate without any additional heat input. After cooling, the oxidized reactor effluent passes through a pressure control valve where the pressure is reduced. A separator downstream of the pressure control valve allows the depressurized and cooled vapor to separate from the liquid. Typical industrial WAO applications have a feed flow rate of 1 to 220 gallons per minute (gpm) per train, with a chemical oxygen demand (COD) from 10,000 to 150,000 mg/L (higher CODs with dilution). Note that catalysts, such as homogeneous copper and iron, their heterogeneous counterparts, or precious metals can be used to enhance the effectiveness (i.e., to lower temperature, pressure, and residence time as well as increase oxidation efficiencies) of the WAO reaction if deemed necessary.

Adu-Wusu, K

2006-03-31T23:59:59.000Z

23

Effect of Outside Air Ventilation Rate on Volatile Organic Compound  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Outside Air Ventilation Rate on Volatile Organic Compound Outside Air Ventilation Rate on Volatile Organic Compound Concentrations in a Call Center Title Effect of Outside Air Ventilation Rate on Volatile Organic Compound Concentrations in a Call Center Publication Type Journal Article Year of Publication 2003 Authors Hodgson, Alfred T., David Faulkner, Douglas P. Sullivan, Dennis L. DiBartolomeo, Marion L. Russell, and William J. Fisk Journal Atmospheric Environment Volume 37 Start Page Chapter Pagination 5517-5528 Abstract A study of the relationship between outside air ventilation rate and concentrations of volatile organic compounds (VOCs) generated indoors was conducted in a call center office building. The building, with two floors and a floor area of 4,600 m2, was located in the San Francisco Bay Area, CA. Ventilation rates were manipulated with the building's four air handling units (AHUs). VOC concentrations in the AHU returns were measured on seven days during a 13-week period. VOC emission factors were determined for individual zones on days when they were operating at near steady-state conditions. The emission factor data were subjected to principal component (PC) analysis to identify groups of co-varying compounds. Potential sources of the PC vectors were ascribed based on information from the literature supporting the associations. Two vectors with high loadings of compounds including formaldehyde, 2,2,4-trimethyl-1,3- pentanediol monoisobutyrate, decamethylcyclopentasiloxane (d5 siloxane), and isoprene likely identified occupant-related sources. One vector likely represented emissions from building materials. Another vector represented emissions of solvents from cleaning products. The relationships between indoor minus outdoor VOC concentrations and ventilation rate were qualitatively examined for eight VOCs. Of these, acetaldehyde and hexanal, which were likely associated with material sources, and d5 siloxane exhibited general trends of higher concentrations at lower ventilation rates. For other compounds, the operation of the building and variations in pollutant generation and removal rates apparently combined to obscure the inverse relationship between VOC concentrations and ventilation. This result emphasizes the importance of utilizing source control measures, in addition to adequate ventilation, to limit concentrations of VOCs of concern in office buildings

24

Characteristics of the volatile organic compounds -- Arid Integrated Demonstration Site  

SciTech Connect (OSTI)

The Volatile Organic Compounds -- Arid Integrated Demonstration Program (VOC-Arid ID) is targeted at demonstration and testing of technologies for the evaluation and cleanup of volatile organic compounds and associated contaminants at arid DOE sites. The initial demonstration site is an area of carbon tetrachloride (CCl{sub 4}) contamination located near the center of the Hanford Site. The movement of CCl{sub 4} and other volatile organic contaminants in the subsurface is very complex. The problem at the Hanford Site is further complicated by the concurrent discharge of other waste constituents including acids, lard oil, organic phosphates, and transuranic radionuclides. In addition, the subsurface environment is very complex, with large spatial variabilities in hydraulic properties. A thorough understanding of the problem is essential to the selection of appropriate containment, retrieval, and/or in situ remedial technologies. The effectiveness of remedial technologies depends on knowing where the contaminants are, how they are held up in a given physical and chemical subsurface environment; and knowing the physical, chemical, and microbiological changes that are induced by the various remedial technologies.

Last, G.V.; Lenhard, R.J.; Bjornstad, B.N.; Evans, J.C.; Roberson, K.R.; Spane, F.A.; Amonette, J.E.; Rockhold, M.L.

1991-10-01T23:59:59.000Z

25

Measurement of Passive Uptake Rates for Volatile Organic Compounds on  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Measurement of Passive Uptake Rates for Volatile Organic Compounds on Measurement of Passive Uptake Rates for Volatile Organic Compounds on Commercial Thermal Desorption Tubes and the Effect of Ozone on Sampling Title Measurement of Passive Uptake Rates for Volatile Organic Compounds on Commercial Thermal Desorption Tubes and the Effect of Ozone on Sampling Publication Type Report LBNL Report Number LBNL-6257E Year of Publication 2013 Authors Maddalena, Randy L., Amanda Parra, Marion L. Russell, and Wen-Yee Lee Publisher Lawrence Berkeley National Laboratory City Berkeley Keywords indoor air quality, Passive Sampling, Uptake Rates, vocs Abstract Diffusive or passive sampling methods using commercially filled axial-sampling thermal desorption tubes are widely used for measuring volatile organic compounds (VOCs) in air. The passive sampling method provides a robust, cost effective way to measure air quality with time-averaged concentrations spanning up to a week or more. Sampling rates for VOCs can be calculated using tube geometry and Fick's Law for ideal diffusion behavior or measured experimentally. There is evidence that uptake rates deviate from ideal and may not be constant over time. Therefore, experimentally measured sampling rates are preferred. In this project, a calibration chamber with a continuous stirred tank reactor design and constant VOC source was combined with active sampling to generate a controlled dynamic calibration environment for passive samplers. The chamber air was augmented with a continuous source of 45 VOCs ranging from pentane to diethyl phthalate representing a variety of chemical classes and physiochemical properties. Both passive and active samples were collected on commercially filled Tenax TA thermal desorption tubes over an 11-day period and used to calculate passive sampling rates. A second experiment was designed to determine the impact of ozone on passive sampling by using the calibration chamber to passively load five terpenes on a set of Tenax tubes and then exposing the tubes to different ozone environments with and without ozone scrubbers attached to the tube inlet. During the sampling rate experiment, the measured diffusive uptake was constant for up to seven days for most of the VOCs tested but deviated from linearity for some of the more volatile compounds between seven and eleven days. In the ozone experiment, both exposed and unexposed tubes showed a similar decline in terpene mass over time indicating back diffusion when uncapped tubes were transferred to a clean environment but there was no indication of significant loss by ozone reaction.

26

Volatile organic compound losses from sewage sludge-amended soils  

SciTech Connect (OSTI)

Volatile organic compounds (VOCs) applied to soil in sludge have been assumed to disappear quickly and completely. The VOC behavior in sludge-amended soils has been studied previously only in laboratory systems where the sludged soil has been spiked with compounds of interest. Behavior in these systems may not necessarily represent compound behavior in field soils to which contaminated sludge is added. A series of laboratory microcosm experiments were designed therefore to investigate the behavior of toluene, ethyl benzene, o-, m-, and p-xylene applied to soil in contaminated sludge, and factors influencing loss processes. The VOC loss from sludge-amended soil was well described by a simple one step pseudo-first-order model but in certain soils was better described by a two step first-order model. Volatilization was the predominant loss process. Rates of loss depended on sludge application rate, method of sludge application, soil properties, and on compound characteristics. Experiments indicated that spiking sludge-amended soils gave a reasonable indication of VOC loss rates from systems amended with contaminated sludge at least over a period of 23 d. The majority of VOCs applied to soils in sludge volatilizes quickly to the atmosphere over a few to 10s of days with a small fraction lost more slowly. Potential for VOC crop uptake, livestock ingestion, and contamination of ground water is low under routine, managed applications of sewage sludge to agricultural land.

Wilson, S.C.; Jones, K.C.

1999-08-01T23:59:59.000Z

27

Process for removing an organic compound from water  

DOE Patents [OSTI]

A process for removing organic compounds from water is disclosed. The process involves gas stripping followed by membrane separation treatment of the stripping gas. The stripping step can be carried out using one or multiple gas strippers and using air or any other gas as stripping gas. The membrane separation step can be carried out using a single-stage membrane unit or a multistage unit. Apparatus for carrying out the process is also disclosed. The process is particularly suited for treatment of contaminated groundwater or industrial wastewater.

Baker, Richard W. (Palo Alto, CA); Kaschemekat, Jurgen (Palo Alto, CA); Wijmans, Johannes G. (Menlo Park, CA); Kamaruddin, Henky D. (San Francisco, CA)

1993-12-28T23:59:59.000Z

28

Detection of volatile organic compounds using surface enhanced Raman scattering  

SciTech Connect (OSTI)

The authors present the detection of volatile organic compounds directly in their vapor phase by surface-enhanced Raman scattering (SERS) substrates based on lithographically-defined two-dimensional rectangular array of nanopillars. The type of nanopillars is known as the tapered pillars. For the tapered pillars, SERS enhancement arises from the nanofocusing effect due to the sharp tip on top. SERS experiments were carried out on these substrates using various concentrations of toluene vapor. The results show that SERS signal from a toluene vapor concentration of ppm level can be achieved, and the toluene vapor can be detected within minutes of exposing the SERS substrate to the vapor. A simple adsorption model is developed which gives results matching the experimental data. The results also show promising potential for the use of these substrates in environmental monitoring of gases and vapors.

Chang, A S; Maiti, A; Ileri, N; Bora, M; Larson, C C; Britten, J A; Bond, T C

2012-03-22T23:59:59.000Z

29

Neutral-ionic transitions in organic mixed-stack compounds  

SciTech Connect (OSTI)

Torrance et al. have made the interesting observation that several mixed-stack organic compounds undergo transitions from neutral states to ionic states as the temperature or pressure is varied. We examine a simple model of such transitions including Coulomb interaction and hybridization of neutral and ionic states. In the limit of weak hybridization and long-range repulsive interaction between ionic planes, it is proven that there is a complete devil's staircase where the degree of ionicity assumes an infinity of rational values. For attractive interactions between ionic planes, the neutral-ionic transition is shown to be first order for weak hybridization. Comparison with experiment indicates that this situation applies to tetrathiafulvalene (TTF) chloranil. For strong hybridization the transition is continuous but goes through a metallic phase. It is shown, for the first time, that the spectrum of the charge-transfer Hamiltonian contains both a bound spectrum, the observed charge-transfer excitations, and a continuum.

Bruinsma, R.; Bak, P.; Torrance, J.B.

1983-01-01T23:59:59.000Z

30

New Soil Volatile Organic Compound Samplers U S  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Soil Volatile Organic Soil Volatile Organic Compound Samplers U . S . D e p a r t m e n t o f E n e r g y * O f f i c e o f F o s s i l E n e r g y N a t i o n a l E n e r g y T e c h n o l o g y L a b o r a t o r y Successes AdvAnced ReseARch To support coal and power systems development, NETL's Advanced Research Program conducts a range of pre-competitive research focused on breakthroughs in materials and processes, coal utilization science, sensors and controls, computational energy science, and bioprocessing-opening new avenues to gains in power plant efficiency, reliability, and environmental quality. NETL also sponsors cooperative educational initiatives in University Coal Research, Historically Black Colleges and Universities, and Other Minority Institutions. Accomplishments P Process improvement P Cost reduction P Greater efficiency

31

Hafnium metallocene compounds used as cathode interfacial layers for enhanced electron transfer in organic solar cells  

Science Journals Connector (OSTI)

We have used hafnium metallocene compounds as cathode interfacial layers for organic solar cells [OSCs]. A metallocene compound consists of...6, 6]-phenyl C61 butyric acid methyl ester, bis-(ethylcyclopentadienyl...

Keunhee Park; Seungsik Oh; Donggeun Jung; Heeyeop Chae…

2012-01-01T23:59:59.000Z

32

Microbial Electrosynthesis: Feeding Microbes Electricity To Convert Carbon Dioxide and Water to Multicarbon Extracellular Organic Compounds  

Science Journals Connector (OSTI)

...extracellular organic compounds...directly to the cells with a graphite...dioxide to organic compounds...microbial production of multicarbon...to convert solar energy that...hydrogen production was verified...outlet, but a solar-powered...a) H-cell device for...errors of the organic acid and...

Kelly P. Nevin; Trevor L. Woodard; Ashley E. Franks; Zarath M. Summers; Derek R. Lovley

2010-06-01T23:59:59.000Z

33

Precipitate hydrolysis process for the removal of organic compounds from nuclear waste slurries  

DOE Patents [OSTI]

A process for removing organic compounds from a nuclear waste slurry comprising reacting a mixture of radioactive waste precipitate slurry and an acid in the presence of a catalytically effective amount of a copper (II) catalyst whereby the organic compounds in the precipitate slurry are hydrolyzed to form volatile organic compounds which are separated from the reacting mixture. The resulting waste slurry, containing less than 10 percent of the orginal organic compounds, is subsequently blended with high level radioactive sludge and transferred to a virtrification facility for processing into borosilicate glass for long-term storage.

Doherty, Joseph P. (Elkton, MD); Marek, James C. (Augusta, GA)

1989-01-01T23:59:59.000Z

34

Precipitate hydrolysis process for the removal of organic compounds from nuclear waste slurries  

DOE Patents [OSTI]

A process for removing organic compounds from a nuclear waste slurry comprising reacting a mixture of radioactive waste precipitate slurry and an acid in the presence of a catalytically effective amount of a copper(II) catalyst whereby the organic compounds in the precipitate slurry are hydrolyzed to form volatile organic compounds which are separated from the reacting mixture. The resulting waste slurry, containing less than 10 percent of the original organic compounds, is subsequently blended with high level radioactive sludge land transferred to a vitrification facility for processing into borosilicate glass for long-term storage. 2 figs., 3 tabs.

Doherty, J.P.; Marek, J.C.

1987-02-25T23:59:59.000Z

35

E-Print Network 3.0 - aromatic organic compounds Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

bases in Iraq and Afghanistan that lack Summary: Compounds Toxic Organic Halogenated Dioxins Furans (dioxins) Polycyclic Aromatic Hydrocarbons found... and detected all of the...

36

Volatile organic compound monitoring by photo acoustic radiometry  

SciTech Connect (OSTI)

Two methods for sampling and analyzing volatile organics in subsurface pore gas were developed for use at the Hazardous Waste Disposal Site at Los Alamos National Laboratory. One is Thermal Desorption Gas Chromatography Mass Spectrometry (TDGCMS), the other is Photoacoustic Radiometry (PAR). Presented here are two years worth of experience and lessons learned as both techniques matured. The sampling technique is equally as important as the analysis method. PAR is a nondispersive infrared technique utilizing band pass filters in the region from 1 to 15 {mu}m. A commercial instrument, the Model 1302 Multigas Analyzer, made by Bruel and Kjaer, was adapted for field use. To use the PAR there must be some a priori knowledge of the constellation of analytes to be measured. The TDGCMS method is sensitive to 50 analytes. Hence TDGCMS is used in an initial survey of the site to determine what compounds are present and at what concentration. Once the major constituents of the soil-gas vapor plume are known the PAR can be configured to monitor for the five analytes of most interest. The PAR can analyse a sample in minutes, while in the field. The PAR is also quite precise in controlled situations.

Sollid, J.E.; Trujillo, V.L.; Limback, S.P.; Woloshun, K.A.

1995-12-01T23:59:59.000Z

37

Artificial Neural Network Modeling of Surface Tension for Pure Organic Compounds  

Science Journals Connector (OSTI)

Artificial Neural Network Modeling of Surface Tension for Pure Organic Compounds ... This study investigates the applicability of artificial neural networks as an efficient tool for the prediction of pure organic compounds’ surface tensions for a wide range of temperatures. ... The most accurate network among several constructed configurations has one hidden layer with 20 neurons. ...

Aliakbar Roosta; Payam Setoodeh; Abdolhossein Jahanmiri

2011-12-09T23:59:59.000Z

38

Opportunities for reducing volatile organic compound emissions in manufacturing office furniture partitions: a feasibility analysis  

Science Journals Connector (OSTI)

A feasibility analysis is reported of reduction opportunities for volatile organic compound (VOC) emissions in manufacturing office furniture partitions. The pollution prevention (P2) methodology as defined by the Ontario Ministry of the Environment ... Keywords: emissions, manufacturing, office furniture, pollution prevention, volatile organic compound

Frank S. Luisser; Marc A. Rosen

2009-02-01T23:59:59.000Z

39

Volatile Organic Compound Investigation Results, 300 Area, Hanford Site, Washington  

SciTech Connect (OSTI)

Unexpectedly high concentrations of volatile organic compounds (VOC) were discovered while drilling in the unconfined aquifer beneath the Hanford Site’s 300 Area during 2006. The discovery involved an interval of relatively finer-grained sediment within the unconfined aquifer, an interval that is not sampled by routine groundwater monitoring. Although VOC contamination in the unconfined aquifer has been identified and monitored, the concentrations of newly discovered contamination are much higher than encountered previously, with some new results significantly higher than the drinking water standards. The primary contaminant is trichloroethene, with lesser amounts of tetrachloroethene. Both chemicals were used extensively as degreasing agents during the fuels fabrication process. A biological degradation product of these chemicals, 1,2-dichloroethene, was also detected. To further define the nature and extent of this contamination, additional characterization drilling was undertaken during 2007. Four locations were drilled to supplement the information obtained at four locations drilled during the earlier investigation in 2006. The results of the combined drilling indicate that the newly discovered contamination is limited to a relatively finer-grained interval of Ringold Formation sediment within the unconfined aquifer. The extent of this contamination appears to be the area immediately east and south of the former South Process Pond. Samples collected from the finer-grained sediment at locations along the shoreline confirm the presence of the contamination near the groundwater/river interface. Contamination was not detected in river water that flows over the area where the river channel potentially incises the finer-grained interval of aquifer sediment. The source for this contamination is not readily apparent. A search of historical documents and the Hanford Waste Information Data System did not provide definitive clues as to waste disposal operations and/or spills that might have resulted in groundwater contamination in this sediment, although several relatively small accidental releases of VOCs have occurred in the past in the northern portion of the 300 Area. It is likely that large quantities of degreasing solutions were disposed to the North and South Process Ponds during the 1950s and 1960s, and that evidence for them in the upper portion of the unconfined aquifer has been removed because of groundwater movement through the much more transmissive sediment. Also, investigations to date have revealed no evidence to suggest that a dense, non-aqueous phase liquid remains undetected in the subsurface. Potential pathways for contamination to migrate from this finer-grained sediment include groundwater movement through the interval to offshore locations in the Columbia River channel, dispersion out of the finer-grained interval into the overlying transmissive sediment (again, with transport to the riverbed), and potential future withdrawal via water supply wells.

Peterson, Robert E.; Williams, Bruce A.; Smith, Ronald M.

2008-07-07T23:59:59.000Z

40

Methods and systems for chemoautotrophic production of organic compounds  

DOE Patents [OSTI]

The present disclosure identifies pathways, mechanisms, systems and methods to confer chemoautotrophic production of carbon-based products of interest, such as sugars, alcohols, chemicals, amino acids, polymers, fatty acids and their derivatives, hydrocarbons, isoprenoids, and intermediates thereof, in organisms such that these organisms efficiently convert inorganic carbon to organic carbon-based products of interest using inorganic energy, such as formate, and in particular the use of organisms for the commercial production of various carbon-based products of interest.

Fischer, Curt R.; Che, Austin J.; Shetty, Reshma P.; Kelly, Jason R.

2013-01-08T23:59:59.000Z

Note: This page contains sample records for the topic "organic compounds tetraphenylborate" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

1. PRECONCENTRATION, THERMAL DESORPTION & ANALYSIS OF VOLATILE ORGANIC COMPOUNDS  

E-Print Network [OSTI]

: peltier, liq. N?.. Heated transfer line 2) Desorption & transfer by fastheatlng Cooled & heated trap jas trap. The trap is then quickly heated, under a low flow of hélium, to desorb and inject thé compounds. This highly concentrated plug of sample is transferred via a heated transfer line, to a capillary

Boyer, Edmond

42

Manmade organic compounds in the surface waters of the United States: A review of current understanding  

SciTech Connect (OSTI)

On the basis of their aqueous solubilities, nonionic organic compounds partition themselves between water, dissolved organic matter, particulate organic matter, and the lipid reservoirs of aquatic organisms. Ionized organic compounds can be adsorbed to sediments, thereby reducing their aqueous concentrations. Transformation processes of photolysis, hydrolysis, biodegradation, and volatilization can attenuate organic compounds, and attenuation rates commonly follow a first-order kinetic process. Eight groups of manmade organic compounds are discussed: (1) polychlorinated biphenyls and organochlorine insecticides; (2) carbamate and organophosphorus; (3) herbicides; (4) phenols; (5) halogenated aliphatic and monocyclic aromatic hydrocarbons; (6) phthalate esters; (7) polychlorinated dibenzo-p-dioxins, and (8) polycyclic aromatic hydrocarbons. For each compound group, data pertaining to use, production, and properties are presented and discussed. Process that influence the environmental fate of each group, as determined primarily through laboratory studies, are reviewed, and important fate process are identified. Environmental concentrations of compounds from each group in water, biota, and sediment are given to demonstrate representative values for comparison to concentrations determined during ongoing research. Finally, where sufficient data exist, regional and temporal contamination trends in the US are discussed. 699 refs., 26 figs., 47 tabs.

Smith, J.A.; Witkowski, P.J.; Fusillo, T.V.

1990-01-01T23:59:59.000Z

43

Growth Yields of Bacteria on Selected Organic Compounds  

Science Journals Connector (OSTI)

...calculate heats of combustion of an exceedingly...carbohydrates, and hydrocarbons, wehave calculated...9, 10), heats of combustion per available...microbial cells on hydrocarbons. Science...S. 1929. Heats of combustion of organic...

W. R. Mayberry; G. J. Prochazka; W. J. Payne

1967-11-01T23:59:59.000Z

44

Phase Transition Enthalpy Measurements of Organic and Organometallic Compounds. Sublimation, Vaporization and Fusion Enthalpies From  

E-Print Network [OSTI]

Phase Transition Enthalpy Measurements of Organic and Organometallic Compounds. Sublimation, Vaporization and Fusion Enthalpies From 1880 to 2010 William Acree, Jr. Department of Chemistry, University of North Texas, Denton, Texas 76203 James S. Chickosa... Department of Chemistry and Biochemistry

Chickos, James S.

45

Electrospun Polyurethane Fibers for Absorption of Volatile Organic Compounds from Air  

E-Print Network [OSTI]

Electrospun polyurethane fibers for removal of volatile organic compounds (VOC) from air with rapid VOC absorption and desorption have been developed. Polyurethanes based on 4,4-methylenebis(phenylisocyanate) (MDI) and ...

Scholten, Elke

46

Weathered Diesel oil as a sorptive phase for hydrophobic organic compounds in aquifer materials  

E-Print Network [OSTI]

The sorptive properties of weathered diesel oil were investigated by conducting miscible displacement experiments with three hydrophobic organic compounds (HOCs), acenapthene, fluorene, and dibenzothiophene, as tracers in columns containing aquifer...

Hudson, Rondall James

2012-06-07T23:59:59.000Z

47

Measurements of Volatile Organic Compounds Using Proton Transfer Reaction - Mass Spectrometry during the MILAGRO 2006 Campaign  

E-Print Network [OSTI]

Volatile organic compounds (VOCs) were measured by proton transfer reaction – mass spectrometry (PTR-MS) on a rooftop in the urban mixed residential and industrial area North Northeast of downtown Mexico City as part of ...

Fortner, E. C.

48

Control of spider mites on cotton by organic sulphur compounds  

E-Print Network [OSTI]

of two species of spider mites using 8 gallons of spray per acre. . 57 10. Results of laboratory ovicidal tests for control of two species of spider mites using 100 gallons of spray per acre.................................................. 59 11...-volurae sprays in the control of cotton pests has presented the problem of getting enough effective sulphur into these sprays to control the spider mites# A series of tests was conducted to evaluate the toxicity of various sulphur compounds in low...

King, Charles Edward

2013-10-04T23:59:59.000Z

49

Progress in Understanding Low-Temperature Organic Compound Oxidation Using a Jet-Stirred Reactor  

E-Print Network [OSTI]

1 Progress in Understanding Low-Temperature Organic Compound Oxidation Using a Jet-Stirred Reactor Lorraine, CNRS, ENSIC, BP 20451, 1 rue Grandville, 54000 Nancy, France Abstract The jet-stirred reactor compounds that can be found in fuels and biofuels. Such an improvement in understanding requires

50

Supercritical CO2 extraction of organic compounds from soil-water slurries  

E-Print Network [OSTI]

SUPERCRITICAL COi EXTRACTION OF ORGANIC COMPOUNDS FROM SOIL-WATER SLURRIES A Thesis by BRIAN DEAN CARTER Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE August 1993 Major Subject: Chemical Engineering SUPERCRITICAL COz FXTRACTION OF ORGANIC COMPOUNDS FROM SOIL-WATER SLURRIES A Thesis by BRIAN DEAN CARTER Submitted to Texas A&M University in partial fulfillment of the requirements...

Carter, Brian Dean

2012-06-07T23:59:59.000Z

51

Mobilization and Transport of Organic Compounds from Reservoir Rock and Caprock in Geological Carbon Sequestration Sites  

SciTech Connect (OSTI)

Supercritical CO2 (scCO2) is an excellent solvent for organic compounds, including benzene, toluene, ethyl-benzene, and xylene (BTEX), phenols, and polycyclic aromatic hydrocarbons (PAHs). Monitoring results from geological carbon sequestration (GCS) field tests has shown that organic compounds are mobilized following CO2 injection. Such results have raised concerns regarding the potential for groundwater contamination by toxic organic compounds mobilized during GCS. Knowledge of the mobilization mechanism of organic compounds and their transport and fate in the subsurface is essential for assessing risks associated with GCS. Extraction tests using scCO2 and methylene chloride (CH2Cl2) were conducted to study the mobilization of volatile organic compounds (VOCs, including BTEX), the PAH naphthalene, and n-alkanes (n-C20 – n-C30) by scCO2 from representative reservoir rock and caprock obtained from depleted oil reservoirs and coal from an enhanced coal-bed methane recovery site. More VOCs and naphthalene were extractable by scCO2 compared to the CH2Cl2 extractions, while scCO2 extractable alkane concentrations were much lower than concentrations extractable by CH2Cl2. In addition, dry scCO2 was found to extract more VOCs than water saturated scCO2, but water saturated scCO2 mobilized more naphthalene than dry scCO2. In sand column experiments, moisture content was found to have an important influence on the transport of the organic compounds. In dry sand columns the majority of the compounds were retained in the column except benzene and toluene. In wet sand columns the mobility of the BTEX was much higher than that of naphthalene. Based upon results determined for the reservoir rock, caprock, and coal samples studied here, the risk to aquifers from contamination by organic compounds appears to be relatively low; however, further work is necessary to fully evaluate risks from depleted oil reservoirs.

Zhong, Lirong; Cantrell, Kirk J.; Mitroshkov, Alexandre V.; Shewell, Jesse L.

2014-05-06T23:59:59.000Z

52

Clean process to destroy arsenic-containing organic compounds with recovery of arsenic  

DOE Patents [OSTI]

A reduction method is provided for the treatment of arsenic-containing organic compounds with simultaneous recovery of pure arsenic. Arsenic-containing organic compounds include pesticides, herbicides, and chemical warfare agents such as Lewisite. The arsenic-containing compound is decomposed using a reducing agent. Arsine gas may be formed directly by using a hydrogen-rich reducing agent, or a metal arsenide may be formed using a pure metal reducing agent. In the latter case, the arsenide is reacted with an acid to form arsine gas. In either case, the arsine gas is then reduced to elemental arsenic. 1 fig.

Upadhye, R.S.; Wang, F.T.

1996-08-13T23:59:59.000Z

53

A Tree's Response to Herbivory: Quantification of Biogenic Volatile Organic Compound Emissions  

E-Print Network [OSTI]

A Tree's Response to Herbivory: Quantification of Biogenic Volatile Organic Compound Emissions an abundant source of Secondary Organic Aerosols (SOA). These emissions are known to vary in quantity and composition due to both biogenic and anthropogenic stressors. In this study, BVOC emissions from bristlecone

Collins, Gary S.

54

Developing carbon-based "organic" compounds for microelectronic applications is a promising, rapidly  

E-Print Network [OSTI]

· Performance and production solutions to electronics, displays, solar cells, white lighting and room lightingDeveloping carbon-based "organic" compounds for microelectronic applications is a promising inorganic materials such as silicon and copper, organic microelectronics are flexible, lighter weight, less

Hayden, Nancy J.

55

Electrosynthesis of Organic Compounds from Carbon Dioxide Is Catalyzed by a Diversity of Acetogenic Microorganisms  

Science Journals Connector (OSTI)

...powered by solar energy is...converted to organic compounds...strategies for the production of fuels...harvesting solar energy...electrodes to cells, has received...microbial fuel cells. Bioresour...microbial production platform...challenges in solar energy utilization...conversion of organic matter to...

Kelly P. Nevin; Sarah A. Hensley; Ashley E. Franks; Zarath M. Summers; Jianhong Ou; Trevor L. Woodard; Oona L. Snoeyenbos-West; Derek R. Lovley

2011-03-04T23:59:59.000Z

56

Microbial transformations of natural organic compounds and radionuclides in subsurface environments  

SciTech Connect (OSTI)

A major national concern in the subsurface disposal of energy wastes is the contamination of ground and surface waters by waste leachates containing radionuclides, toxic metals, and organic compounds. Microorganisms play an important role in the transformation of organic compounds, radionuclides, and toxic metals present in the waste and affect their mobility in subsurface environments. Microbial processes involved in dissolution, mobilization, and immobilization of toxic metals under aerobic and anaerobic conditions are briefly reviewed. Metal complexing agents and several organic acids produced by microbial action affect mobilization of radionuclides and toxic metals in subsurface environments. Information on the persistence of and biodegradation rates of synthetic as well as microbiologically produced complexing agents is scarce but important in determining the mobility of metal organic complexes in subsoils. Several gaps in knowledge in the area of microbial transformation of naturally occurring organics, radionuclides, and toxic metals have been identified, and further basic research has been suggested. 31 refs., 1 fig., 3 tabs.

Francis, A.J.

1985-10-01T23:59:59.000Z

57

Liquid-phase adsorption of organic compounds by granular activated carbon and activated carbon fibers  

SciTech Connect (OSTI)

Liquid-phase adsorption of organic compounds by granular activated carbon (GAC) and activated carbon fibers (ACFs) is investigated. Acetone, isopropyl alcohol (IPA), phenol, and tetrahydrofuran (THF) were employed as the model compounds for the present study. It is observed from the experimental results that adsorption of organic compounds by GAC and ACF is influenced by the BET (Brunauer-Emmett-Teller) surface area of adsorbent and the molecular weight, polarity, and solubility of the adsorbate. The adsorption characteristics of GAC and ACFs were found to differ rather significantly. In terms of the adsorption capacity of organic compounds, the time to reach equilibrium adsorption, and the time for complete desorption, ACFs have been observed to be considerably better than GAC. For the organic compounds tested here, the GAC adsorptions were shown to be represented well by the Langmuir isotherm while the ACF adsorption could be adequately described by the Langmuir or the Freundlich isotherm. Column adsorption tests indicated that the exhausted ACFs can be effectively regenerated by static in situ thermal desorption at 150 C, but the same regeneration conditions do not do as well for the exhausted GAC.

Lin, S.H.; Hsu, F.M. [Yuan Ze Inst. of Tech., Taoyuan (Taiwan, Province of China). Dept. of Chemical Engineering

1995-06-01T23:59:59.000Z

58

Stripping of organic compounds from wastewater as an auxiliary fuel of regenerative thermal oxidizer  

Science Journals Connector (OSTI)

Organic solvents with different volatilities are widely used in various processes and generate air and water pollution problems. In the cleaning processes of electronics industries, most volatile organic compounds (VOCs) are vented to air pollution control devices while most non-volatile organic solvents dissolve in the cleaning water and become the major sources of COD in wastewater. Discharging a high-COD wastewater stream to wastewater treatment facility often disturbs the treatment performance. A pretreatment of the high-COD wastewater is therefore highly desirable. This study used a packed-bed stripping tower in combination with a regenerative thermal oxidizer to remove the COD in the wastewater from a printed circuit board manufacturing process and to utilize the stripped organic compounds as the auxiliary fuel of the RTO. The experimental results showed that up to 45% of the COD could be removed and 66% of the RTO fuel could be saved by the combined treatment system.

Meng-Wen Chang; Jia-Ming Chern

2009-01-01T23:59:59.000Z

59

Determination of Migration Parameters for Volatile Organic Compounds in Polyethylene Terephthalate and Nylon 6 by Dynamic Permeation Cell Method  

E-Print Network [OSTI]

Determination of Migration Parameters for Volatile Organic Compounds in Polyethylene Terephthalate, such as low-density polyethylene (LDPE), high-density polyethylene (HDPE), and polypropylene (PP); however

Heller, Barbara

60

Enthalpies of Sublimation of Organic and Organometallic Compounds. James S. Chickosa...  

E-Print Network [OSTI]

Enthalpies of Sublimation of Organic and Organometallic Compounds. 1910­2001 James S. Chickosa... Department of Chemistry, University of Missouri-St. Louis, Saint Louis, Missouri 63121 William E. Acree, Jr.b... Department of Chemistry, University of North Texas, Denton, Texas 76203 Received 22 October 2001; accepted 11

Chickos, James S.

Note: This page contains sample records for the topic "organic compounds tetraphenylborate" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Intake of Toxic and Carcinogenic Volatile Organic Compounds from Secondhand Smoke in Motor Vehicles  

Science Journals Connector (OSTI)

...BR.Measurement of emissions from air pollution sources. 5. C1-C32 organic compounds...Ott W , Klepeis N, Switzer P.Air change rates of motor vehicles and...experimental investigation of tobacco smoke pollution in cars.Nicotine Tob Res 2009...

Gideon St.Helen; Peyton Jacob III; Margaret Peng; Delia A. Dempsey; S. Katharine Hammond; and Neal L. Benowitz

2014-12-01T23:59:59.000Z

62

Rejection and fate of trace organic compounds (TrOCs) during membrane distillation  

E-Print Network [OSTI]

Rejection and fate of trace organic compounds (TrOCs) during membrane distillation Kaushalya COCs) Direct contact membrane distillation (DCMD) Volatility Fate and transport Hydrophobicity/hydrophilicity a b s t r a c t In this study, we examined the feasibility of membrane distillation (MD) for removing

63

A Critical Review on Studies of Volatile Organic Compound (VOC) Sorption by  

E-Print Network [OSTI]

A Critical Review on Studies of Volatile Organic Compound (VOC) Sorption by Building Materials (RP the pros and cons of existing sorption models, as well as experimental methods. In addition, it summarizes existing sorption data in order to understand the phenomenon of VOC sorption on building materials better

Chen, Qingyan "Yan"

64

ARTIFACT FORMATION IN HIGH VOLUME SAMPLING OF VOC's AND SOLID ORGANIC COMPOUNDS.  

E-Print Network [OSTI]

when sampling polluted air. Purified air containing 180 ppbv ozone seems to destroy PAH according Atmospheriques, Boite 7059, UNIVERSITE PARIS 7, 2, place Jussieu, 75251 PARIS Cedex 05 ABSTRACT Pollutants from well äs solid (SOC's) organic compounds. High volume samplers are commonly used m air quality

Boyer, Edmond

65

In situ measurements of gas/particle-phase transitions for atmospheric semivolatile organic compounds  

Science Journals Connector (OSTI)

...abundance, as compared to an ambient run (i.e., gas-phase and particle-phase...carbon number. Because n-alkanes are straight chained, and have very low polarity, they do not enter the particle...Diurnal and seasonal variability of gasoline-related volatile organic compound emissions...

Brent J. Williams; Allen H. Goldstein; Nathan M. Kreisberg; Susanne V. Hering

2010-01-01T23:59:59.000Z

66

Membrane formation by preferential solvation of ions in mixture of water, 3-methylpyridine, and sodium tetraphenylborate  

SciTech Connect (OSTI)

The structure and dynamics of a ternary system composed of deuterium oxide (D{sub 2}O), 3-methylpyridine (3MP), and sodium tetraphenylborate (NaBPh{sub 4}) are investigated by means of small-angle neutron scattering (SANS) and neutron spin echo (NSE) techniques. In the SANS experiments, a structural phase transition is confirmed between a disordered-phase and an ordered-lamellar-phase upon variation of the composition and/or temperature of the mixture. The characteristic lengths of the structures is on the sub-micrometer scale. A dispersion relation of the structure is measured through NSE experiments, which shows that the relaxation rate follows a cubic relation with momentum transfer. This implies that the dynamics of the system are determined predominantly by membrane fluctuations. The present results indicate that 3MP-rich domains are microscopically separated from bulk water in the presence of NaBPh{sub 4}, and that the layers behave as membranes. These results are interpreted that preferential solvation of salt in each solvent induces a microphase separation between the solvents, and the periodic structure of 3MP-rich domains is stabilized by the long-range electrostatic interaction arising from Na{sup +} ions in D{sub 2}O-rich domains.

Sadakane, Koichiro, E-mail: sadakane@fc.ritsumei.ac.jp [Department of Physics, Ritsumeikan University, Noji-Higashi 1-1-1, Kusatsu 525-8577 (Japan)] [Department of Physics, Ritsumeikan University, Noji-Higashi 1-1-1, Kusatsu 525-8577 (Japan); Nagao, Michihiro [NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-6102 (United States) [NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-6102 (United States); Center for Exploration of Energy and Matter, Indiana University, Bloomington, Indiana 47408-1398 (United States); Endo, Hitoshi; Seto, Hideki [KENS and CMRC, Institute of Materials Structure Science, High Energy Accelerator Research Organization, Tsukuba 305-0801 (Japan)] [KENS and CMRC, Institute of Materials Structure Science, High Energy Accelerator Research Organization, Tsukuba 305-0801 (Japan)

2013-12-21T23:59:59.000Z

67

Use of sonication for in-well softening of semivolatile organic compounds. 1997 annual progress report  

SciTech Connect (OSTI)

'This project investigates the in-situ degradation of semivolatile organic compounds (SVOCs) and volatile organic compounds (VOCs) using in-well sonication, in-well vapor stripping, and bioremediation. Pretreating groundwaters with sonication techniques in-situ would form VOCs that can be effectively removed by in-well vapor stripping and bioremediation. The mechanistic studies focus on the coupling of megasonics and ultrasonics to soften (i.e., partially degrade) the SVOCs; oxidative reaction mechanism studies; surface corrosion studies (on the reactor walls/well); enhancement due to addition of oxidants, quantification of the hydroxyl radical formation; identification/quantification of degradation products; volatility/degradability of the treated waters; development of a computer simulation model to describe combined in-well sonication/in-well vapor stripping/bioremediation; systems analysis/economic analysis; large laboratory-scale experiment verification; and field demonstration of the integrated technology. Benefits of this approach include: (1) Remediation is performed in-situ; (2) The treatment systems complement each other; their combination can drastically reduce or remove SVOCs and VOCs; (3) Ability to convert hard-to-degrade organics into more volatile organic compounds; (4) Ability to remove residual VOCs and softened SVOCs through the combined action of in-well vapor stripping and biodegradation; (5) Does not require handling or disposing of water at the ground surface; and (6) Cost-effective and improved efficiency, resulting in shortened clean-up times to remediate a site.'

Peters, R.W.; Manning, J. [Argonne National Lab., IL (US); Hoffman, M.R. [California Inst. of Tech., Pasadena, CA (US); Gorelick, S. [Stanford Univ., CA (US)

1997-01-01T23:59:59.000Z

68

Process for the solvent extraction for the radiolysis and dehalogenation of halogenated organic compounds in soils, sludges, sediments and slurries  

DOE Patents [OSTI]

A process of extracting halogenated organic compounds, and particularly PCBs, from soil, sediment, slurry, sludge and dehalogenating the compounds contacting a contaminated soil sample with an extraction medium of a mixture of an alkane and a water miscible alcohol. The organic compounds dissolve in the extraction medium which is separated from the soil by passing water upwardly through the soil. The extraction medium floats to the surface of the water and is separated. Thereafter, the extraction medium containing the halogenated organic contaminants is subjected to ionizing radiation to radiolytically dehalogenate the compounds.

Mincher, Bruce J. (3705 Creekside Dr., Idaho Falls, ID 83404); Curry, Randy Dale (1104 Merrill Ct., Columbia, MO 65203); Clevenger, Thomas E. (2512 Bluff Blvd., Columbia, MO 65201); Golden, Jeffry (12612 Cedarbrook La., Laurel, MD 20708)

2000-01-01T23:59:59.000Z

69

Source Signature of Volatile Organic Compounds from Oil and Natural Gas Operations in Northeastern Colorado  

Science Journals Connector (OSTI)

Source Signature of Volatile Organic Compounds from Oil and Natural Gas Operations in Northeastern Colorado ... Only 4% of all samples at BAO had high ROH+VOCO&NG and were from the western sector where the nearest wells are located indicating that they were not the dominant O&NG source at BAO. ... parameters were measured concurrently at a site on the western perimeter of Boulder, Colorado, during Feb., 1991. ...

J. B. Gilman; B. M. Lerner; W. C. Kuster; J. A. de Gouw

2013-01-14T23:59:59.000Z

70

Performance specifications for technology development: Application for characterization of volatile organic compounds in the environment  

SciTech Connect (OSTI)

This report contains information about technology development for the monitoring and remediation of environmental pollution caused by the release of volatile organic compounds. Topics discussed include: performance specification processes, gas chromatography, mass spectrometer, fiber-optic chemical sensors, infrared spectroscopy, Raman spectroscopy, piezoelectric sensors and electrochemical sensors. These methods are analyzed for their cost efficiency, accuracy, and the ability to meet the needs of the customer.

Carpenter, S.E.; Doskey, P.V.; Erickson, M.D.; Lindahl, P.C.

1994-07-01T23:59:59.000Z

71

Treatment of biorefractory organic compounds in wool scour effluent by hydroxyl radical oxidation  

Science Journals Connector (OSTI)

Wool scouring effluent that had been treated with chemical flocculation and aerobic biological treatment (Sirolan CFB effluent) was tertiary treated by hydroxyl radical oxidation to remove residual organic compounds. These compounds impart a high chemical oxygen demand of 500–3000 mg/L and dark colour. However, a H2O2/UV process was found to effectively treat the majority of residual compounds, with up to 75% COD, 85% total organic carbon, and 100% removal of colour (T480 nm) achieved. This was despite the effluent being strongly absorbing in the UV region, with a film thickness of 0.21 mm reducing T254 nm by 50%. Treatment was unaffected by pH over the range 3–9. H2O2/UV treatment increased the biodegradability of the effluent (5-day biochemical oxygen demand increased from wool scour effluent of approximately 97.5%. This degree of treatment is sufficient for discharge in many, but not all, circumstances.

Andrew J Poole

2004-01-01T23:59:59.000Z

72

Integrated production of fuel gas and oxygenated organic compounds from synthesis gas  

DOE Patents [OSTI]

An oxygenated organic liquid product and a fuel gas are produced from a portion of synthesis gas comprising hydrogen, carbon monoxide, carbon dioxide, and sulfur-containing compounds in a integrated feed treatment and catalytic reaction system. To prevent catalyst poisoning, the sulfur-containing compounds in the reactor feed are absorbed in a liquid comprising the reactor product, and the resulting sulfur-containing liquid is regenerated by stripping with untreated synthesis gas from the reactor. Stripping offgas is combined with the remaining synthesis gas to provide a fuel gas product. A portion of the regenerated liquid is used as makeup to the absorber and the remainder is withdrawn as a liquid product. The method is particularly useful for integration with a combined cycle coal gasification system utilizing a gas turbine for electric power generation.

Moore, Robert B. (Allentown, PA); Hegarty, William P. (State College, PA); Studer, David W. (Wescosville, PA); Tirados, Edward J. (Easton, PA)

1995-01-01T23:59:59.000Z

73

Photochemical Modeling of Emissions Trading of Highly Reactive Volatile Organic Compounds in Houston, Texas. 2. Incorporation of Chlorine Emissions  

Science Journals Connector (OSTI)

As part of the State Implementation Plan for attaining the National Ambient Air Quality Standard for ozone, the Texas Commission of Environmental Quality has created a Highly Reactive Volatile Organic Compounds (HRVOC) Emissions Cap and Trade Program for ...

Linlin Wang; Tammy Thompson; Elena C. McDonald-Buller; David T. Allen

2007-02-27T23:59:59.000Z

74

Thermodynamics and kinetics of hydrophobic organic compound sorption in natural sorbents and quantification of black carbon by electron microscopy  

E-Print Network [OSTI]

The sorption behaviors of hydrophobic organic compounds (HOCs) in sediments were investigated using pyrene. Native pyrene desorbed slowly, taking from weeks to months to equilibrate. The end-point data suggested that, at ...

Kuo, Dave Ta Fu, 1978-

2010-01-01T23:59:59.000Z

75

Online measurements of the emissions of intermediate-volatility and semi-volatile organic compounds from aircraft  

E-Print Network [OSTI]

A detailed understanding of the climate and air quality impacts of aviation requires measurements of the emissions of intermediate-volatility and semi-volatile organic compounds (I/SVOCs) from aircraft. Currently both the ...

Herndon, S. C.

76

Pilot scale test of a produced water-treatment system for initial removal of organic compounds  

SciTech Connect (OSTI)

A pilot-scale test to remove polar and non-polar organics from produced water was performed at a disposal facility in Farmington NM. We used surfactant-modified zeolite (SMZ) adsorbent beds and a membrane bioreactor (MBR) in combination to reduce the organic carbon content of produced water prior to reverse osmosis (RO). Reduction of total influent organic carbon (TOC) to 5 mg/L or less is desirable for efficient RO system operation. Most water disposed at the facility is from coal-bed gas production, with oil production waters intermixed. Up to 20 gal/d of produced water was cycled through two SMZ adsorbent units to remove volatile organic compounds (BTEX, acetone) and semivolatile organic compounds (e.g., napthalene). Output water from the SMZ units was sent to the MBR for removal of the organic acid component of TOC. Removal of inorganic (Mn and Fe oxide) particulates by the SMZ system was observed. The SMZ columns removed up to 40% of the influent TOC (600 mg/L). BTEX concentrations were reduced from the initial input of 70 mg/L to 5 mg/L by the SMZ and to an average of 2 mg/L after the MBR. Removal rates of acetate (input 120-170 mg/L) and TOC (input up to 45 mg/L) were up to 100% and 92%, respectively. The water pH rose from 8.5 to 8.8 following organic acid removal in the MBR; this relatively high pH was likely responsible for observed scaling of the MBR internal membrane. Additional laboratory studies showed the scaling can be reduced by metered addition of acid to reduce the pH. Significantly, organic removal in the MBR was accomplished with a very low biomass concentration of 1 g/L throughout the field trial. An earlier engineering evaluation shows produced water treatment by the SMZ/MBR/RO system would cost from $0.13 to $0.20 per bbl at up to 40 gpm. Current estimated disposal costs for produced water are $1.75 to $4.91 per bbl when transportation costs are included, with even higher rates in some regions. Our results suggest that treatment by an SMZ/MBR/RO system may be a feasible alternative to current methods for produced water treatment and disposal.

Sullivan, Enid J [Los Alamos National Laboratory; Kwon, Soondong [UT-AUSTIN; Katz, Lynn [UT-AUSTIN; Kinney, Kerry [UT-AUSTIN

2008-01-01T23:59:59.000Z

77

Electrocatalytic Materials and Techniques for the Anodic Oxidation of Various Organic Compounds  

SciTech Connect (OSTI)

The focus of this thesis was first to characterize and improve the applicability of Fe(III) and Bi(V) doped PbO{sub 2} film electrodes for use in anodic O-transfer reactions of toxic and waste organic compounds, e.g. phenol, aniline, benzene, and naphthalene. Further, they investigated the use of alternative solution/electrode interfacial excitation techniques to enhance the performance of these electrodes for remediation and electrosynthetic applications. Finally, they have attempted to identify a less toxic metal oxide film that may hold promise for future studies in the electrocatalysis and photoelectrocatalysis of O-transfer reactions using metal oxide film electrodes.

Stephen Everett Treimer

2002-06-27T23:59:59.000Z

78

Solar-Powered Electrochemical Oxidation of Organic Compounds Coupled with the Cathodic Production of Molecular Hydrogen  

Science Journals Connector (OSTI)

Solar-Powered Electrochemical Oxidation of Organic Compounds Coupled with the Cathodic Production of Molecular Hydrogen ... The volume percent of the headspace was calculated assuming that it was directly proportional to the ion current measured by the mass spectrometer and that the transfer of all gases through the membrane and their 70 eV electron ionization cross-sections were approximately equivalent. ... In addition, even if hydrogen is mixed with carbon dioxide, CO2 can be readily removed just by chemical absorption process (e.g., flowing carbon dioxide gas through amine solution), which is a typical CO2 separation process in gas turbine power plants. ...

Hyunwoong Park; Chad D. Vecitis; Michael R. Hoffmann

2008-07-26T23:59:59.000Z

79

Literature review of stabilization/solidification of volatile organic compounds and the implications for Hanford grouts  

SciTech Connect (OSTI)

A literature review was conducted on the stabilization/solidification of volatile organic compounds (VOCs). Based on this literature, it is likely that the limestone-containing grout will not permanently immobilize VOCs and that no presently available additives can guarantee permanent immobilization. The Westinghouse hanford company grout may be fairly effective at retarding aqueous leaching of VOCs, and commercial additives can improve this performance. Significant VOC losses do occur during stabilization/solidification, and the high temperatures of the Westinghouse Hanford Company waste and grout should exacerbate this problem. In fact, these high temperatures raise doubts about the presence of VOCs in the double-shell tanks supernates.

Spence, R.D.; Osborne, S.C.

1993-09-01T23:59:59.000Z

80

The effect of mean cell residence time on the adsorbability of dissolved organic compounds found in petrochemical wastewaters  

E-Print Network [OSTI]

THF EFFECT OF MEAN CELL RESIDENCE TIME ON THE ADSORBABILITY OF DISSOLVED ORGANIC COMPOUNDS FOUND IN PETROCHEMICAL WASTEWATERS A Thesis by TIMOTHY LURING JOHNSON Submitted to the Graduate College of Texas A&M University ir, Partia. fulfillment... of the requirement for the degree of MASTER OF SCIENCE August 1979 Major Subject: Civil Engineering THE EFFECT OF MEAN CELL RESIDENCE TIME ON THE ADSORBABILITY OF DISSOLVED ORGANIC COMPOUNDS FOUND IN PETROCHEMICAL WASTENATERS A Thesis by TIMOTHY LORING...

Johnson, Timothy Loring

2012-06-07T23:59:59.000Z

Note: This page contains sample records for the topic "organic compounds tetraphenylborate" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

The mobility of water soluble organic compounds in soils from the land application of petroleum waste sludge  

E-Print Network [OSTI]

THE MOBILITY OF WATER SOLUBLE ORGANIC COMPOUNDS IN SOILS FROM THE LAND APPLICATION OF PETROLEUM WASTE SLUDGE A Thesis by GORDON BARCUS EVANS, JR. Submitted to the Graduate College of Texas A&l1 University in partial fulfillment... of the requirement for the degree of MASTER OF SCIENCE December 1979 Major Subject: Soil Science THE MOBILITY OF WATER SOLUBLE ORGANIC COMPOUNDS IN SOILS FROM THE LAND APPLICATION OF PETROLEUM WASTE SLUDGE A Thesis by GORDON BARCUS EVANS, JR. Approved...

Evans, Gordon Barcus

1979-01-01T23:59:59.000Z

82

Hygroscopicity of Water-Soluble Organic Compounds in Atmospheric Aerosols:? Amino Acids and Biomass Burning Derived Organic Species  

Science Journals Connector (OSTI)

In the hygroscopic measurement, the chemicals were first dissolved in ultrapure water to make stock solutions that were used to generate particles by a piezoelectric droplet generator (Uni-Photon Inc., NY., USA, Model 201). ... Together with the measurements of the hygroscopicity of glucose, glycerol, humic-like substances, and arginine, which have been detected in biomass burning aerosols and found noncrystallizing in single particle measurements (8,9,16,20,28,41), these results suggest that organic species derived from biomass burning may retain water at low RH in the atmosphere. ... (6)?Zhang, Q.; Anastasio, C. Free and combined amino compounds in atmospheric fine particles (PM2.5) and fog waters from Northern California. ...

Man Nin Chan; Man Yee Choi; Nga Lee Ng; Chak K. Chan

2005-02-04T23:59:59.000Z

83

Geobacter strains that use alternate organic compounds, methods of making, and methods of use thereof  

DOE Patents [OSTI]

In preferred embodiments, the present invention provides new isolated strains of Geobacter species that are capable of using a carbon source that is selected from C.sub.3 to C.sub.12 organic compounds selected from pyruvate or metabolic precursors of pyruvate as an electron donor in metabolism and in subsequent energy production. In other aspects, other preferred embodiments of the present invention include methods of making such strains and methods of using such strains. In general, the wild type strain of the microorganisms has been shown to be unable to use these C.sub.3 to C.sub.12 organic compounds as electron donors in metabolic steps such as the reduction of metallic ions. The inventive strains of microorganisms are useful improving bioremediation applications, including in situ bioremediation (including uranium bioremediation and halogenated solvent bioremediation), microbial fuel cells, power generation from small and large-scale waste facilities (e.g., biomass waste from dairy, agriculture, food processing, brewery, or vintner industries, etc.) using microbial fuel cells, and other applications of microbial fuel cells, including, but not limited to, improved electrical power supplies for environmental sensors, electronic sensors, and electric vehicles.

Lovley, Derek R; Summers, Zarath Morgan; Haveman, Shelley Annette; Izallalen, Mounir

2013-12-03T23:59:59.000Z

84

Neutron reflectometry reveals the internal structure of organic compounds deposited on aluminum oxide  

Science Journals Connector (OSTI)

Organic carbon (OC) stabilization in soils plays a significant role in the global C cycle, therefore understanding the structure and function of the OC–soil mineral interface is of high importance. To study the interface, films of simple OC compounds and natural organic matter (NOM) were deposited onto a soil mineral analogue (Al2O3) using spin coating and were exposed to humidity. The thickness, density and structure of the films were studied using a depth-sensitive, nano-scale technique of neutron reflectometry. A single homogenous layer was observed when NOM and glucose (GL) were adsorbed onto Al2O3. However, when stearic acid (SA) was added to either NOM or GL, separate layers attributed to SA and either NOM or GL were detected. The formation of distinct, immiscible layers is due to insolubility of SA with NOM and GL. In contrast, GL and NOM are both water-soluble, and therefore soluble with each other, forming a homogenous layer on the mineral surface. Our results suggest that the extent of complex layering formed on the OC–mineral interface may depend on the relative solubility of the compounds.

Melanie Mayes; Sindhu Jagadamma; Haile Ambaye; Loukas Petridis; Valeria Lauter

2013-01-01T23:59:59.000Z

85

Diversity of the Volatile Organic Compounds Emitted by 55 Species of Tropical Trees: a Survey in French Guiana  

E-Print Network [OSTI]

in French Guiana Elodie A. Courtois & C. E. Timothy Paine & Pierre-Alain Blandinieres & Didier Stien & Jean, LLC 2009 Abstract Volatile organic compounds (VOCs) are pro- duced by a broad range of organisms, from tropical tree species in a lowland rainforest of French Guiana. We discovered a remarkably high chemical

Chave, Jérôme

86

Identifying Sources of Volatile Organic Compounds and Aldehydes in a High  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Identifying Sources of Volatile Organic Compounds and Aldehydes in a High Identifying Sources of Volatile Organic Compounds and Aldehydes in a High Performance Building Title Identifying Sources of Volatile Organic Compounds and Aldehydes in a High Performance Building Publication Type Report LBNL Report Number LBNL-3979e Year of Publication 2010 Authors Ortiz, Anna C., Marion L. Russell, Wen-Yee Lee, Michael G. Apte, and Randy L. Maddalena Pagination 29 Date Published 09/2010 Publisher Lawrence Berkeley National Laboratory City Berkeley Abstract The developers of the Paharpur Business Center (PBC) and Software Technology Incubator Park in New Delhi, India offer an environmentally sustainable building with a strong emphasis on energy conservation, waste minimization and superior indoor air quality (IAQ). To achieve the IAQ goal, the building utilizes a series of air cleaning technologies for treating the air entering the building. These technologies include an initial water wash followed by ultraviolet light treatment and biolfiltration using a greenhouse located on the roof and numerous plants distributed throughout the building. Even with the extensive treatment of makeup air and room air in the PBC, a recent study found that the concentrations of common volatile organic compounds and aldehydes appear to rise incrementally as the air passes through the building from the supply to the exhaust. This finding highlights the need to consider the minimization of chemical sources in buildings in combination with the use of advanced air cleaning technologies when seeking to achieve superior IAQ. The goal of this project was to identify potential source materials for indoor chemicals in the PBC. Samples of building materials, including wood paneling (polished and unpolished), drywall, and plastic from a hydroponic drum that was part of the air cleaning system, were collected from the building for testing. All materials were collected from the PBC building and shipped to the Lawrence Berkeley National Laboratory (LBNL) for testing. The materials were pre-conditioned for two different time periods before measuring material and chemical specific emission factors for a range of VOCs and Aldehydes. Of the six materials tested, we found that the highest emitter of formaldehyde was new plywood paneling. Although polish and paint contribute to some VOC emissions, the main influence of the polish was in altering the capacity of the surface to accumulate formaldehyde. Neither the new nor aged polish contributed significantly to formaldehyde emissions. The VOC emission stream (excluding formaldehyde) was composed of up to 18 different chemicals and the total VOC emissions ranged in magnitude from 7 μg/m2/h (old wood with old polish) to >500 μg/m2/h (painted drywall). The formaldehyde emissions from drywall and old wood with either new or old polish were ~ 15 μg/m2/h while the new wood material emitted > 100 μg/m2/h. However, when the projected surface area of each material in the building was considered, the new wood, old wood and painted drywall material all contributed substantially to the indoor formaldehyde loading while the coatings contributed primarily to the VOCs

87

NMED COMMENTS ITEM 3 REVISE VOLATILE ORGANIC COMPOUND (VOC) TARGET ANALYTE LIST  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

3 3 NMED COMMENTS ITEM 3 REVISE VOLATILE ORGANIC COMPOUND (VOC) TARGET ANALYTE LIST OTHER CHANGES TO VOC MONITORING PROGRAM Page 1 of 21 VOC 3·1: PMR Section 3, Topic 1, Table 1 Recalculated Waste Matrix Code Group Weighting Factors based on the 2004 Compliance Recertification Contact Handled (CH) Transuranic (TRU) Waste Inventory (m 3 ) The new weighting factors appear to be based on CH TRU waste only and do not include remote handled (RH) TRU waste. There was no discussion in the PMR addressing possible differences in Waste Matrix Code Group (WMCG) for RH TRU that could potentially impact the weighting factors. Please provide data characterizing the differences in emissions between the two types of waste, in support of the assertion that modeling data from CH TRU waste adequately

88

Investigations of release phenomenon of volatile organic compounds and particulates from residual storage chip piles  

SciTech Connect (OSTI)

This paper outlines the method for estimating Particulate Matter and Volatile Organic Compounds (VOCs) emissions from wood handling and storage operations at a pulp mill. Fugitive particulate matter emissions from wood handling and storage operations are due to material load/dropout operations, wind erosion from storage piles and vehicular traffic on paved roads. The particulate matter emissions are a function of a number of variables like windspeed, surface moisture content, material silt content, and number of days of precipitation. Literature review attributes VOC emissions to biological, microbiological, chemical, and physical processes occurring in wood material storage pile. The VOC emissions are from the surface of these piles and the VOC released during retrieval of chips from the pile. VOC emissions are based on the chip throughput, number of turnovers, moisture content and surface area of the pile. The emission factors with the requisite calculation methodology to be utilized for quantifying VOC emissions from chip piles has been discussed in this paper.

Mohan, S.; Nagarkatti, M. [Trinity Consultants, Inc., Baton Rouge, LA (United States)

1996-12-31T23:59:59.000Z

89

Thermogravimetric investigation on characteristic of biomass combustion under the effect of organic calcium compounds  

Science Journals Connector (OSTI)

Abstract Experiments were conducted in a thermogravimetric analyzer to investigate thermal behavior of different organic calcium compounds (OCCs) and its blended fuels with three kinds of biomass. The effectiveness of synthesized method for OCC was assessed by the pyrolysis test. Effect of the mole ratio of calcium to sulfur on co-combustion characteristics was studied. Results indicated that preparation method of modified calcium acetate (MCA) had high precision and accuracy. Co-combustion characteristic of \\{OCCs\\} blended with biomass was controlled by OCCs’ additive amount and the content of volatile matter which is mainly composed of small hydrocarbon molecules. Combustion performance indexes for peanut shell and wheat straw impregnated by \\{OCCs\\} were improved, however, an inverse trend was found for rice husk because of lower additive amount of OCCs. The blended fuel show higher combustion performance indexes compared with combustion of individual biomass, and these indexes decrease with increases of Ca/S ratio.

Lihui Zhang; Feng Duan; Yaji Huang

2015-01-01T23:59:59.000Z

90

Real-time monitoring of volatile organic compounds using chemical ionization mass spectroscopy: Final report  

SciTech Connect (OSTI)

Volatile organic compound (VOC) emission to the atmosphere is of great concern to semiconductor manufacturing industries, research laboratories, the public, and regulatory agencies. Some industries are seeking ways to reduce emissions by reducing VOCs at the point of use (or generation). This paper discusses the requirements, design, calibration, and use of a sampling inlet/quadrupole mass spectrometer system for monitoring VOCs in a semiconductor manufacturing production line. The system uses chemical ionization to monitor compounds typically found in the lithography processes used to manufacture semiconductor devices (e.g., acetone, photoresist). The system was designed to be transportable from tool to tool in the production line and to give the operator real-time feedback so the process(es) can be adjusted to minimize VOC emissions. Detection limits ranging from the high ppb range for acetone to the low ppm range fore other lithography chemicals were achieved using chemical ionization mass spectroscopy at a data acquisition rate of approximately 1 mass spectral scan (30 to 200 daltons) per second. A demonstration of exhaust VOC monitoring was performed at a working semiconductor fabrication facility during actual wafer processing.

Thornberg, S.M.; Mowry, C.D.; Keenan, M.R.; Bender, S.F.A. [Sandia National Labs., Albuquerque, NM (United States). Gas Analysis Lab.; Owen, T. [Intel Corp., Rio Rancho, NM (United States)

1997-04-01T23:59:59.000Z

91

Emissions of non-methane organic compounds from a grassland site  

SciTech Connect (OSTI)

A mixture of oxygenated hydrocarbons (OxHCs), isoprene, and monoterpenes was detected in the emissions from a grassland site in the Midwestern United States. A plot dominated by crown vetch (Coronilla varia) and bluegrass (Poa spp.), exhibited a constant decrease in emissions of total non-methane organic compounds (NMOCs) from 580 {mu}g m{sup -2} hr{sup -1} in June 1992 to 150 {mu}g m{sup - 2} hr{sup -1} in October 1992, except for a slight increase in August. Oxygenated hydrocarbons (methanol, acetaldehyde, and acetone) and terpenes (isoprene, limonene, myrcene, {alpha}-pinene, and {beta}- pinene) composed about 90% and 10% of the identified NMOC emissions, respectively. Isoprene represented about 10% of the terpene emissions. Total NMOC emission rates based on vegetative biomass averaged 2.3 {mu}g g{sup -1} hr{sup -1}, with 10% of the identified NMOCs attributed to monoterpenes and the remainder mainly OxHCs. Over the course of the investigation, the relationship between the monoterpene emission rate and the temperature for a single plot was logarithmic and similar to the one between compound vapor pressure and temperature. However, emission rates normalized to temperature decreased throughout the summer and fall, indicating that parameterizations of emission rates from herbaceous plants must include a factor to compensate for environmental conditions such as soil moisture and nutrient deposition, which affect plant phenology and the seasonal pattern of species dominance.

Fukui, Yoshiko; Doskey, P.V.

1996-03-01T23:59:59.000Z

92

Selected Values of Heats of Combustion and Heats of Formation of Organic Compounds Containing the Elements C, H, N, O, P, and S.  

Science Journals Connector (OSTI)

Selected values of the heats of combustion and heats of formation of 719 organic compounds are reported here. The data tabulated pertain to compounds containing the elements carbon hydrogen nitrogen oxygen phosphorus and sulfur (CHNOPS). The information is arranged according to classes of compounds and within each class compounds are arranged by empirical formula. The general classes covered are: hydrocarbons alcohols phenols polyols ethers aldehydes ketones acids acid anhydrides esters steroids lactones carbohydrates heterocyclic oxygen compounds amines amides urea derivatives guanidine derivatives amino acids peptides alkaloids heterocyclic nitrogen compounds porphyrins organic sulfur compounds and organic phosphorus compounds. When a selection was made from among several investigators commentary is provided to indicate the choice and usually some relevant data. The number of references cited is 596. An alphabetical compound index is provided which gives the name page number empirical formula and the Wiswesser Line Notation (WLN) for each compound.

Eugene S. Domalski

1972-01-01T23:59:59.000Z

93

The relation of certain organic phosphorus compounds to blood cholinesterase activity and their value as parasiticides in swine  

E-Print Network [OSTI]

THE RELATION OF CERTAIN ORGANIC PHOSPHORUS COMPOUNDS TO BLOOD CHOLINESTERASE ACTIVITY AND THEIR VALUE AS PARASFIICIDES IN SWINE A Thesis By DELFIN DANCEL de LEON Submitted to the Graduate School of the Agricultural and Mechanical College... of Texas in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE August 1960 Major Subject: Animal Husbandry THE RELATION OF CERTAIN ORGANIC PHOSPHORUS CON/EXPOUNDS TO BLOOD CHOLINESTERASE ACTIVITT AND THEIR VALUE...

Leon, Delfin Dancel de

1960-01-01T23:59:59.000Z

94

SPECIATION OF TRACE ORGANIC LIGANDS AND INORGANIC AND ORGANOMETALLIC COMPOUNDS IN OIL SHALE PROCESS WATERS  

E-Print Network [OSTI]

Presented at the 13th Oil Shale Symposium, Golden, CO, April~1ETALLIC COMPOUNDS IN OIL SHALE PROCESS WATERS Richard H.compounds in the seven oil shale process waters. These

Fish, Richard H.

2013-01-01T23:59:59.000Z

95

Gas phase radiolysis and vacuum ultraviolet photolysis of heterocyclic organic compounds. Progress report, Feburary 1, 1979-February 1, 1980  

SciTech Connect (OSTI)

The long-range objective of our research group is to gain a better understanding of the processes by which complex organic molecules react when they absorb large amounts of energy. This progress report describes the results of our recent work in three areas: diradicals derived from heterocyclic compounds; trimethylene diradicals from various sources; and ion-molecule reactions.

Scala, A.A.; Nguyen, D.; Rourke, W.; Caputo, M.

1980-01-01T23:59:59.000Z

96

Scale-up analysis and development of gliding arc discharge facility for volatile organic compounds decomposition  

Science Journals Connector (OSTI)

The influences of inlet gas flow rate and reactor configuration on volatile organic compounds (VOCs) decomposition efficiency in a traditional gliding arc (T-GA) facility are studied based on laboratory experiments and numerical simulation. The ratio of the nozzle diameter and the shortest distance of two electrodes should be maintained in a suitable value range to guarantee the decomposition efficiency, which indicates simply enlarging the nozzle inner diameter is not a proper way to raise the T-GA treatment capacity in a fixed supply voltage condition. A developed gliding arc gas discharge (D-GA) reactor based on a modified gas feed system is proposed: small flow rate air goes through the bottom nozzle to process the GA evolution, and high flow rate contaminated gas goes frontal through the plasma region and decomposes. The performances of D-GA reactor in the decomposition of \\{VOCs\\} with relative high gas flow rate, including decomposition efficiency and specific energy consumption, are better than T-GA reactor. D-GA reactor also avoids the drawbacks of the increases of power system amount and electric power consumption in multi-electrode GA system.

Zheng Bo; Jianhua Yan; Xiaodong Li; Yong Chi; Kefa Cen

2008-01-01T23:59:59.000Z

97

Stable Carbon Isotope Ratios of Phenolic Compounds in Secondary Particulate Organic Matter Formed by Photooxidation of Toluene  

E-Print Network [OSTI]

Compound-specific stable carbon isotope ratios for phenolic compounds in secondary particulate organic matter (POM) formed by photooxidation of toluene were studied. Secondary POM generated by photooxidation of toluene using a continuous-flow reactor and an 8 cubic meter indoor smog chamber was collected, and then extracted with acetonitrile. Eight phenolic compounds were identified in the extracts by a gas chromatograph coupled with a mass spectrometer, and their compound-specific stable carbon isotope ratios were determined by a gas chromatograph coupled with a combustion furnace followed by an isotope ratio mass spectrometer. The majority of the products, including methylnitrophenols and methylnitrocatechols, were isotopically depleted by 5 to 6 permil compared to the initial isotope ratio for toluene, whereas the isotope ratio for 4_nitrophenol remained the same as the initial isotope ratio for toluene. Based on the reaction mechanisms postulated in literature, stable carbon isotope ratios of these produc...

Irei, Satoshi; Huang, Lin; Auld, Janeen; Collin, Fabrice; Hastie, Donald

2014-01-01T23:59:59.000Z

98

Arid site characterization and technology assessment: Volatile Organic Compounds-Arid Integrated Demonstration  

SciTech Connect (OSTI)

The US Department of Energy`s (DOE`s) Volatile Organic Compounds-Arid Integrated Demonstration (VOC-Arid ID) program was initiated in March 1991 to evaluate technologies for all phases of remediation of VOCs in soils and groundwater at DOE arid/semiarid sites. The primary site for field demonstrations under the VOC-Arid ID program is the Hanford Site. The purpose of this report is to describe (1) the bases for technologies currently under evaluation in the VOC-Arid ID program; (2) the types of subsurface contamination at DOE arid/semiarid sites; and (3) the areas of potential common technology interests based on perceived technology needs at other DOE sites. This report was compiled by Pacific Northwest Laboratory in response to DOE`s Office of Technology Development`s mission to carry out an aggressive program to accelerate the development and implementation of new and existing technologies to meet a 30-year goal set by DOE in June 1989 to clean up all of its sites and to bring all sites into compliance with current and future environmental regulations. A key component of this program is the development of technologies that are better, faster, safer, and cheaper than those technologies currently available. Included in this report are an evaluation of technologies currently (fiscal year 1993) being pursued at the Hanford Site under the auspices of the VOC-Arid ID program, an assessment of subsurface contaminants at arid/semiarid sites, a summarization of technologies under consideration at other DOE sites, a discussion of areas of potential common technology interests, and the conclusions. Also included are a summary of the extent of contamination at the DOE arid/semiarid sites under consideration and a bibliography of source documents from which this report was prepared.

Riley, R.G.

1993-06-01T23:59:59.000Z

99

FIELD SCREENING FOR HALOGENATED VOLATILE ORGANIC COMPOUNDS: THE NEW X-WAND HVOC SCREENING DEVICE  

SciTech Connect (OSTI)

Western Research Institute (WRI) has developed new methodology and a test kit to screen soil or water samples for halogenated volatile organic compounds (HVOCs) in the field. The technology has been designated the X-Wand{trademark} screening tool. The new device uses a heated diode sensor that is commonly used to detect leaks of refrigerants from air conditioners, freezers, and refrigerators. This sensor is selective to halogens. It does not respond to volatile aromatic hydrocarbons, such as those in gasoline, and it is not affected by high humidity. In the current work, the heated diode leak detectors were modified further to provide units with rapid response and enhanced sensitivity. The limit of detection for trichloroethylene TCE in air is 0.1 mg/m{sup 3} (S/N = 2). The response to other HVOCS relative to TCE is similar. Variability between sensors and changes in a particular sensor over time can be compensated for by normalizing sensor readings to a maximum sensor reading at 1,000 mg/m{sup 3} TCE. The soil TCE screening method was expanded to include application to water samples. Assuming complete vaporization, the detection limit for TCE in soil is about 1 ug/kg (ppb) for a 25-g sample in an 8-oz jar. The detection limit for TCE in water is about 1 ug/L (ppb) for a 25-mL sample in an 8-oz jar. This is comparable to quantitation limits of EPA GC/MS laboratory methods. A draft ASTM method for screening TCE contaminated soils using a heated diode sensor was successfully submitted for concurrent main committee and subcommittee balloting in ASTM Committee D 34 on Waste Management. The method was approved as ASTM D 7203-05, Standard Test Method for Screening Trichloroethylene (TCE)-Contaminated Soil Using a Heated Diode Sensor.

John F. Schabron; Susan S. Sorini; Joseph F. Rovani Jr

2006-03-01T23:59:59.000Z

100

Atmospheric outflow of anthropogenic semivolatile organic compounds from East Asia in Spring 2004  

SciTech Connect (OSTI)

To estimate the emissions of anthropogenic semivolatile organic compounds (SOCs) from East Asia and to identify unique SOC molecular markers in Asian air masses, high-volume air samples were collected on the island of Okinawa, Japan between 22 March and 2 May 2004. Contributions from different source regions (China, Japan, the Koreas, Russia, and ocean/local) were estimated by use of source region impact factors (SRIFs). Elevated concentrations of hexachlorobenzene (HCB), hexachlorcyclohexanes (HCHs), dichlorodiphenyltrichloroethanes (DDTs), and particulate-phase polycyclic aromatic hydrocarbons (PAHs) were attributed to air masses from China. A large proportion of the variation in the current-use pesticides, gas-phase PAHs, and polychlorinated biphenyl (PCB) concentrations was explained by meteorology. Chlordanes showed a technical mixture profile and similar concentrations regardless of source region. {alpha}/{gamma} HCH and trans/cis chlordane ratios did not vary significantly with different source regions and had regional averages of 2.5 {+-} 1.0 and 1.2 {+-} 0.3, respectively. Particulate-phase PAH concentrations were significantly correlated (p value {lt} 0.05) with other incomplete combustion byproduct concentrations, including elemental mercury (Hg{sup 0}), CO, NOx{asterisk}, black carbon, submicrometer aerosols, and SO{sub 2}. By use of measured PAH, CO, and black carbon concentrations and estimated CO and black carbon emission inventories, the emission of six carcinogenic particulate-phase PAHs was estimated to be 1518-4179 metric tons/year for Asia and 778-1728 metric tons/year for China, respectively. These results confirm that East Asian outflow contains significant emissions of carcinogenic particulate-phase PAHs. 39 refs., 3 figs.

Toby Primbs; Staci Simonich; David Schmedding; Glenn Wilson; Dan Jaffe; Akinori Takami; Shungo Kato; Shiro Hatakeyama; Yoshizumi Kajii [Oregon State University, Corvallis, OR (United States). Departments of Chemistry and Environmental and Molecular Toxicology

2007-05-15T23:59:59.000Z

Note: This page contains sample records for the topic "organic compounds tetraphenylborate" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Photochemical Modeling of Emissions Trading of Highly Reactive Volatile Organic Compounds in Houston, Texas. 1. Reactivity Based Trading and Potential for Ozone Hot Spot Formation  

Science Journals Connector (OSTI)

Photochemical Modeling of Emissions Trading of Highly Reactive Volatile Organic Compounds in Houston, Texas. ... (12)?Thompson, T. M.; Wang, L.; Web, A.; McDonald-Buller, E.; Allen, D. T. Photochemical Modeling of the Air Quality Impacts of an Emissions Trading Program for Highly Reactive Volatile Organic Compounds (HRVOCs) in Texas; Air and Waste Management Association Annual Meeting, New Orleans, June, 2006. ...

Linlin Wang; Tammy Thompson; Elena C. McDonald-Buller; Alba Webb; David T. Allen

2007-02-27T23:59:59.000Z

102

Field Derived Emission Factors For Formaldehyde and other Volatile Organic Compounds in FEMA Temporary Housing Units  

SciTech Connect (OSTI)

Sixteen previously occupied temporary housing units (THUs) were studied to assess emissions of volatile organic compounds. The whole trailer emission factors wereevaluated for 36 VOCs including formaldehyde. Indoor sampling was carried out in the THUs located in Purvis staging yard in Mississippi, USA. Indoor temperature andrelative humidity (RH) were also measured in all the trailers during sampling. Indoor temperatures were varied (increased or decreased) in a selection of THUs using theheating, ventilation and air conditioning (HVAC) systems. Indoor temperatures during sampling ranged from 14o C to 33o C, and relative humidity (RH) varied between 35percentand 74percent. Ventilation rates were increased in some trailers using bathroom fans and vents during some of the sampling events. Ventilation rates measured during some aselection of sampling events varied from 0.14 to 4.3 h-1. Steady state indoor formaldehyde concentrations ranged from 10 mu g-m-3 to 1000 mu g-m-3. The formaldehyde concentrations in the trailers were of toxicological significance. The effects of temperature, humidity and ventilation rates were also studied. A linearregression model was built using log of percentage relative humidity, inverse of temperature (in K-1), and inverse log ACH as continuous independent variables, trailermanufacturer as a categorical independent variable, and log of the chemical emission factors as the dependent variable. The coefficients of inverse temperature, log relativehumidity, log inverse ACH with log emission factor were found to be statistically significant for all the samples at the 95percent confidence level. The regression model wasfound to explain about 84percent of the variation in the dependent variable. Most VOC concentrations measured indoors in the Purvis THUs were mostly found to be belowvalues reported in earlier studies by Maddalena et al.,1,2 Hodgson et al.,3 and Hippelein4. Emissions of TMPB-DIB (a plasticizer found in vinyl products) were found to be higher than values reported in comparable housing by Hodgson et al.,3. Emissions of phenol were also found to be slightly higher than values reported in earlier studies1,2,3. This study can assist in retrospective formaldehyde exposure assessments of THUs where estimates of the occupants indoor formaldehyde exposures are needed.

Parthasarathy, Srinandini; Maddalena, Randy L.; Russell, Marion L.; Apte, Michael G.

2010-10-01T23:59:59.000Z

103

Comparing removal of trace organic compounds and assimilable organic carbon (AOC) at advanced and traditional water treatment plants  

Science Journals Connector (OSTI)

Stability of drinking water can be indicated by the assimilable organic carbon (AOC). This AOC value represents the regrowth capacity of microorganisms...254, and AOC) from water, experimental results indicate th...

Jie-Chung Lou; Chung-Yi Lin; Jia-Yun Han…

2012-06-01T23:59:59.000Z

104

Isotopic constraints on the sources and associations of organic compounds in marine sediments  

E-Print Network [OSTI]

To provide a new perspective on the fate of both natural organic matter and hydrophobic organic contaminants (HOCs) in marine sediments, we have investigated the relationship between radiocarbon (14C) age and the different ...

White, Helen K

2006-01-01T23:59:59.000Z

105

Vehicular emission of volatile organic compounds (VOCs) from a tunnel study in Hong Kong  

E-Print Network [OSTI]

Chemistry and Physics Vehicular emission of volatile organicY. , and Huang, Y. S. : Emission factors and characteristicslight-duty vehicle emissions, Environ. Sci. Technol. , 30,

2009-01-01T23:59:59.000Z

106

Carbon isotope ratios of organic compound fractions in oceanic suspended particles  

E-Print Network [OSTI]

Radiocarbon evidence of fossil-carbon cycling in sediments1968), Metabolic fractionation of carbon isotopes in marineof particulate organic carbon using bomb 14 C, Nature,

Hwang, Jeomshik; Druffel, Ellen R. M

2006-01-01T23:59:59.000Z

107

Microbial Electrosynthesis: Feeding Microbes Electricity To Convert Carbon Dioxide and Water to Multicarbon Extracellular Organic Compounds  

Science Journals Connector (OSTI)

...Microbiology, University of Massachusetts, Amherst, Massachusetts, USA Citation Nevin, K...attractive strategy to convert solar energy that is harvested intermittently...photosynthesis that might convert solar energy to organic products...

Kelly P. Nevin; Trevor L. Woodard; Ashley E. Franks; Zarath M. Summers; Derek R. Lovley

2010-06-01T23:59:59.000Z

108

Microbial Electrosynthesis: Feeding Microbes Electricity To Convert Carbon Dioxide and Water to Multicarbon Extracellular Organic Compounds  

Science Journals Connector (OSTI)

...photosynthesis that might convert solar energy to organic products more effectively...nature of renewable sources of energy, most notably solar and wind, is leading to a search for strategies to capture the electrical energy produced from these sources in...

Kelly P. Nevin; Trevor L. Woodard; Ashley E. Franks; Zarath M. Summers; Derek R. Lovley

2010-06-01T23:59:59.000Z

109

Removal of organic and inorganic compounds from landfill leachate using reverse osmosis  

Science Journals Connector (OSTI)

The main objective of this work was to evaluate an effectiveness of removing organic and inorganic pollutants from landfill leachate in a long-term reverse osmosis (RO) study. Investigations were carried out...4 ...

I. A. Talalaj

2014-08-01T23:59:59.000Z

110

Radionuclides, Trace Metals, and Organic Compounds in Shells of Native Freshwater Mussels Along the Hanford Reach of the Columbia River: 6000 Years Before Present to Current Times  

SciTech Connect (OSTI)

This report documents concentrations of radionuclides, trace metals, and semivolatile organic compounds measured in shell samples of the western pearl shell mussel collected along the Hanford Reach of the Columbia River.

B. L. Tiller; T. E. Marceau

2006-01-25T23:59:59.000Z

111

Metal organic chemical vapor deposition of 111-v compounds on silicon  

DOE Patents [OSTI]

Expitaxial composite comprising thin films of a Group III-V compound semiconductor such as gallium arsenide (GaAs) or gallium aluminum arsenide (GaAlAs) on single crystal silicon substrates are disclosed. Also disclosed is a process for manufacturing, by chemical deposition from the vapor phase, epitaxial composites as above described, and to semiconductor devices based on such epitaxial composites. The composites have particular utility for use in making light sensitive solid state solar cells.

Vernon, Stanley M. (Wellesley, MA)

1986-01-01T23:59:59.000Z

112

Current emission trends for nitrogen oxides, sulfur dioxide, and volatile organic compounds by month and state: Methodology and results  

SciTech Connect (OSTI)

This report presents estimates of monthly sulfur dioxide (SO{sub 2}), nitrogen oxides (NO{sub x}), and nonmethane voltatile organic compound (VOC) emissions by sector, region, and state in the contiguous United States for the years 1975 through 1988. This work has been funded as part of the National Acid Precipitation Assessment Program`s Emissions and Controls Task Group by the US Department of Energy (DOE) Office of Fossil Energy (FE). The DOE project officer is Edward C. Trexler, DOE/FE Office of Planning and Environment.

Kohout, E.J.; Miller, D.J.; Nieves, L.A.; Rothman, D.S.; Saricks, C.L.; Stodolsky, F.; Hanson, D.A.

1990-08-01T23:59:59.000Z

113

Current emission trends for nitrogen oxides, sulfur dioxide, and volatile organic compounds by month and state: Methodology and results  

SciTech Connect (OSTI)

This report presents estimates of monthly sulfur dioxide (SO{sub 2}), nitrogen oxides (NO{sub x}), and nonmethane voltatile organic compound (VOC) emissions by sector, region, and state in the contiguous United States for the years 1975 through 1988. This work has been funded as part of the National Acid Precipitation Assessment Program's Emissions and Controls Task Group by the US Department of Energy (DOE) Office of Fossil Energy (FE). The DOE project officer is Edward C. Trexler, DOE/FE Office of Planning and Environment.

Kohout, E.J.; Miller, D.J.; Nieves, L.A.; Rothman, D.S.; Saricks, C.L.; Stodolsky, F.; Hanson, D.A.

1990-08-01T23:59:59.000Z

114

The transformation of organic amines by transition metal cluster compounds. Progress report, 1993--1994  

SciTech Connect (OSTI)

In the recent year, the authors extended investigations into insertion reactions by investigating the insertion of dicarboxylate acetylene into the metal-metal bond of Re{sub 2}(CO){sub 9}(NCMe). Secondly, the authors considered the ring opening reactions of the cyclic thioethers: tetrahydrothiophene and thiacyclohexane when complexed to Os{sub 3}(CO){sub 10}(NCMe){sub 2}. In a third effort, various osmium complexes of cyclobutynes were synthesized and the subsequent reactivity probed. Finally, energy storage (via absorption of UV-visible photons) in osmium cluster compounds was investigated.

Adams, R.D.

1994-01-01T23:59:59.000Z

115

Cold Temperature and Biodiesel Fuel Effects on Speciated Emissions of Volatile Organic Compounds from Diesel Trucks  

Science Journals Connector (OSTI)

Emissions testing was conducted on a chassis dynamometer at two ambient temperatures (?7 and 22 °C) operating on two fuels (ultra low sulfur diesel and 20% soy biodiesel blend) over three driving cycles: cold start, warm start and heavy-duty urban dynamometer driving cycle. ... Different 2007+ aftertreatment technologies involving catalyst regeneration led to significant modifications of VOC emissions that were compound-specific and highly dependent on test conditions. ... However, emissions of other toxic partial combustion products such as carbonyls were not reduced in the modern diesel vehicles tested. ...

Ingrid J. George; Michael D. Hays; Richard Snow; James Faircloth; Barbara J. George; Thomas Long; Richard W. Baldauf

2014-11-13T23:59:59.000Z

116

Air filters from HVAC systems as possible source of volatile organic compounds (VOC) – laboratory and field assays  

Science Journals Connector (OSTI)

The emission of volatile organic compounds (VOC) from air filters of HVAC systems was to be evaluated. In a first study carbonyl compounds (14 aldehydes and two ketones) were measured by reacting them with 2,4-dinitrophenylhydrazine (DNPH). Analysis was done by HPLC and UV detection. In laboratory experiments pieces of used and unused HVAC filters were incubated in test chambers. Filters to be investigated were taken from a filter bank of a large HVAC system in the centre of Berlin. First results show that – among those compounds – formaldehyde and acetone were found in higher concentrations in the test chambers filled with used filters in comparison to those with unused filters. Parallel field measurements were carried out at the prefilter and main filter banks of the two HVAC systems. Here measurements were carried out simultaneously before and after the filters to investigate whether those aldehydes or ketones arise from the filter material on site. Formaldehyde and acetone significantly increased in concentration after the filters of one HVAC system. In parallel experiments microorganisms were proved to be able to survive on air filters. Therefore, a possible source of formaldehyde and acetone might be microbes.

Hans Schleibinger; Henning Rüden

1999-01-01T23:59:59.000Z

117

Correlation between gas-phase and solution-phase reactivities of hydroxyl radicals toward saturated organic compounds  

SciTech Connect (OSTI)

The gas-phase and aqueous-solution-phase reactivities of hydroxyl radicals with a wide variety of organic compounds are compared. When kinetic data are available for the same reaction occurring in both phases, this comparison provides useful information about the reaction mechanism. Through this comparison the authors can demonstrate a linear correlation between the gas/solution-phase OH reactivities for numerous saturated organic compounds. This empirical relationship can be used together with mechanistic information to estimate the OH reactivity in one phase from the measured rate constant in the other. In order to develop and extend the correlation, they have used the flash photolysis resonance fluorescence technique to measure rate constants for the gas-phase reactions of OH radicals with methanol-d/sub 4/, ethanol-d/sub 6/, 2-chloroethanol, 2,2,2-trichloroethanol, 2,2,2-trifluoroethanol, acetone-d/sub 6/, 1,1,1-trifluoroacetone, and 1,2-butylene oxide at 298 K. These results are reported herein.

Wallington, T.J.; Dagaut, P.; Kurylo, M.J.

1988-08-25T23:59:59.000Z

118

Our planet is becoming increasingly polluted with inorganic and organic compounds, primarily as a  

E-Print Network [OSTI]

produced or expected to be present in organ- isms). Many of them are toxic and/or carcinogenic. Sources cleanup in the US, and $25­50 billion per year worldwide (Glass 1999; Tsao 2003). Most remediation that use plants to remove, reduce, degrade, or immobilize environmental pollutants from soil and water

119

"The disintegration of organic compounds by microorganisms is accompanied by the liberation of  

E-Print Network [OSTI]

that of the better- known abiotic hydrogen- and methanol-driven fuel cells. For example, abiotic fuel cells require in a cost-effective manner. Over the past 40 years it has been suggested that microbial fuel cells might convert organic matter into electricity in devices known as microbial fuel cells. However, interest

Lovley, Derek

120

Ozone-forming potential of a series of oxygenated organic compounds  

SciTech Connect (OSTI)

An incremental reactivity approach has been used to assess the relative ozone-forming potentials of various important oxygenated fuels/fuel additives, i.e., tert-butyl alcohol (TBA), dimethyl ether (DME), diethyl ether (DEE), methyl tert-butyl ether (MTBE), and ethyl tert-butyl ether (ETBE), in a variety of environments. Calculations were performed using a single-cell trajectory model, combined with the Lurmann-Carter-Coyner chemical mechanism, with (NMOC)/(NO{sub x}) ratios ranging from 4 to 20. This work provides the first quantitative assessment of the air quality impact of release of these important oxygenated compounds. ETBE and DEE are the two most reactive compounds on a per carbon equivalent basis, while TBA is the least reactive species. At a (NMOC)/(NO{sub x}) ratio of 8, which is generally typical of polluted urban areas in the United States, TBA, DME, MTBE, and ETBE all have incremental reactivities less than or equal to that of the urban NMHC mix. Thus, use of these additives in fuels may have a beneficial impact on urban ozone levels.

Japar, S.M.; Wallington, T.J.; Rudy, S.J.; Chang, Tai Y. (Ford Motor Company, Dearborn, MI (USA))

1991-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "organic compounds tetraphenylborate" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Thermodynamic properties of organic oxygen compounds XLIII. Vapour pressures of some ethers  

Science Journals Connector (OSTI)

Vapour pressures of methyl propyl, isopropyl methyl, butyl methyl, ethyl propyl, t-butyl methyl, dipropyl, di-isopropyl, di-t-butyl, and decyl methyl ethers were measured at pressures up to 205 kPa. The measured values were fitted by Antoine and by Chebyshev equations, values already published from this laboratory for three aromatic ethers were recomputed uniformly with the present results, and published values for four additional compounds were incorporated in a scheme for correlation of the vapour pressures of ethers. Estimates were made of the vapour pressures of 10 other ethers. Between 5 and 200 kPa the vapour pressures of ethers may be represented by a single equation in which carbon number or an effective carbon number is a parameter. Chebyshev equations are given for interpolation between the upper bounds of the measurements and the critical pressures of 11 ethers for which this property has been previously determined.

D Ambrose; J.H Ellender; C.H.S Sprake; R Townsend

1976-01-01T23:59:59.000Z

122

Ambient air monitoring for organic compounds, acids, and metals at Los Alamos National Laboratory, January 1991  

SciTech Connect (OSTI)

Los Alamos National Laboratory (LANL) contracted Radian Corporation (Radian) to conduct a short-term, intensive air monitoring program whose goal was to estimate the impact of chemical emissions from LANL on the ambient air environment. A comprehensive emission inventory had identified more than 600 potential air contaminants in LANL's emissions. A subset of specific target chemicals was selected for monitoring: 20 organic vapors, 6 metals and 5 inorganic acid vapors. These were measured at 5 ground level sampling sites around LANL over seven consecutive days in January 1991. The sampling and analytical strategy used a combination of EPA and NIOSH methods modified for ambient air applications.

Williams, C.H. (Radian Corp., Austin, TX (United States)); Eberhart, C.F. (Los Alamos National Lab., NM (United States))

1992-01-01T23:59:59.000Z

123

Ambient air monitoring for organic compounds, acids, and metals at Los Alamos National Laboratory, January 1991  

SciTech Connect (OSTI)

Los Alamos National Laboratory (LANL) contracted Radian Corporation (Radian) to conduct a short-term, intensive air monitoring program whose goal was to estimate the impact of chemical emissions from LANL on the ambient air environment. A comprehensive emission inventory had identified more than 600 potential air contaminants in LANL`s emissions. A subset of specific target chemicals was selected for monitoring: 20 organic vapors, 6 metals and 5 inorganic acid vapors. These were measured at 5 ground level sampling sites around LANL over seven consecutive days in January 1991. The sampling and analytical strategy used a combination of EPA and NIOSH methods modified for ambient air applications.

Williams, C.H. [Radian Corp., Austin, TX (United States); Eberhart, C.F. [Los Alamos National Lab., NM (United States)

1992-10-01T23:59:59.000Z

124

Single-reactor process for producing liquid-phase organic compounds from biomass  

DOE Patents [OSTI]

Disclosed is a method for preparing liquid fuel and chemical intermediates from biomass-derived oxygenated hydrocarbons. The method includes the steps of reacting in a single reactor an aqueous solution of a biomass-derived, water-soluble oxygenated hydrocarbon reactant, in the presence of a catalyst comprising a metal selected from the group consisting of Cr, Mn, Fe, Co, Ni, Cu, Mo, Tc, Ru, Rh, Pd, Ag, W, Re, Os, Ir, Pt, and Au, at a temperature, and a pressure, and for a time sufficient to yield a self-separating, three-phase product stream comprising a vapor phase, an organic phase containing linear and/or cyclic mono-oxygenated hydrocarbons, and an aqueous phase.

Dumesic, James A. (Verona, WI); Simonetti, Dante A. (Middleton, WI); Kunkes, Edward L. (Madison, WI)

2011-12-13T23:59:59.000Z

125

Photocatalytic and chemical oxidation of organic compounds in supercritical carbon dioxide. Progress report for FY97  

SciTech Connect (OSTI)

'The background for the project is briefly reviewed and the work done during the nine months since funding was received is documented. Work began in January, 1997. A post doctoral fellow joined the team in April. The major activities completed this fiscal year were: staffing the project, design of the experimental system, procurement of components, assembly of the system. preparation of the Safe Operating Procedure and ES and H compliance, pressure testing, establishing data collection and storage methodology, and catalyst preparation. Objective The objective of the project is to develop new chemistry for the removal of organic contaminants from supercritical carbon dioxide. This has application in processes used for continuous cleaning and extraction of parts and waste materials. A secondary objective is to increase the fundamental understanding of photocatalytic chemistry. Cleaning and extraction using supercritical carbon dioxide (scCO{sub 2}) can be applied to the solution of a wide range of environmental and pollution prevention problems in the DOE complex. Work is being done that explores scCO{sub 2} in applications ranging from cleaning contaminated soil to cleaning components constructed from plutonium. The rationale for use of scCO{sub 2} are based on the benign nature, availability and low cost, attractive solvent properties, and energy efficient separation of the extracted solute from the solvent by moderate temperature or pressure changes. To date, R and D has focussed on the methods and applications of the extraction steps of the process. Little has been done that addresses methods to polish the scCO{sub 2} for recycle in the cleaning or extraction operations. In many applications it will be desirable to reduce the level of contamination from that which would occur at steady state operation of a process. This proposal addresses chemistry to achieve that. This would be an alternative to removing a fraction of the contaminated scCO{sub 2} for disposal and using makeup scCO{sub 2}. A chemical polishing operation can reduce the release of CO{sub 2} from the process. It can also reduce the consumption of reagents that may be used in the process to enhance extraction and cleaning. A polishing operation will also reduce or avoid formation of an additional waste stream. Photocatalytic and other photochemical oxidation chemistry have not been investigated in scCO{sub 2}. The large base of information for these reactions in water, organic solvents, or air suggest that the chemistry will work in carbon dioxide. There are compelling reasons to believe that the properties of scCO{sub 2} should increase the performance of photocatalytic chemistry over that found in more conventional fluid phases.'

Blake, D.M.; Bryant, D.L.; Reinsch, V.

1997-09-30T23:59:59.000Z

126

Behavior of partially miscible organic compounds in simulated ground water systems  

SciTech Connect (OSTI)

Serious ground water contamination problems result from leaks or spills of organic liquids which are partially miscible in water. Two important categories of these liquids include low molecular weight chlorinated solvents and gasoline. 1,1,1-Trichloroethane (TCA) abiotically degrades in water forming approximately 17-25% 1,1-dichloroethene (1,1-DCE) via an elimination reaction. Brominated analogs of TCA hydrolyze 11-13 times faster than TCA. As the number of bromines increase, the percent of elimination products increases. These geminal trihalides degrade by a unimolecular mechanism (E1/SN1). The rate coefficient for TCA degradation in buffered water at elevated temperature is approximately six times greater than hydrolysis of 1-chloropropane (SN2 mechanism) and more than 100 times greater than 1,1-dichloroethane. In the presence of sodium thiosulfate, the 1-chloropropane degradation rate increased by more than a factor of 100, 1,1-dichloroethane rate by 22 and TCA degradation by approximately two. The range of concentrations for major components of gasoline which partition into water was determined for 65 gasoline samples. Benzene concentrations in the water extracts ranged from 12.3-130 mg/l and toluene concentrations ranged from 23-185 mg/l. Fuel/water partition coefficients of seven major aromatic constituents were measured for 31 gasoline types and showed a standard deviation of 10-30%. These coefficients were highly correlated with the pure component solubilities. Chemometric techniques were applied to 20 peaks measured in the aqueous extracts of the 65 gasolines. Bivariate plots and principal component analyses show selected brands have distinguishing equilibrium concentrations, but complete separation of brands was not observed.

Cline, P.V.

1988-01-01T23:59:59.000Z

127

On-line Analysis of Organic Compounds in Diesel Exhaust Using a Proton Transfer Reaction Mass Spectrometer (PTR-MS)  

SciTech Connect (OSTI)

Chemical ionization mass spectrometry using H3O+ proton transfer in an ion drift tube (PTR-MS) was used to measure volatile organic compound (VOC) concentrations on-line in diesel engine exhaust as a function on engine load. The purpose of the study was to evaluate the PTR-MS instrument as an analytical tool for diesel engine emissions abatement research. Measured sensitivities determined from gas standards were found to be between 30% and 100% greater than calculated sensitivities. A slight humidity dependent sensitivity was observed for non-polar species, implying that reactions with H+(H2O)2 were important for some organics. The mass spectra of diesel exhaust were complex but displayed a pattern of strong ion signals at 14n+1 (n=3..8) masses, with a relative ion abundance similar to that obtained from electron impact ionization of alkanes. Laboratory experiments verified that C8-C16 n-alkanes and C8-C13 1-alkenes react with H3O+ in dissociative proton transfer reaction resulting in alkyl cation ion products, primarily m/z 41, 43, 57, 71 and 85. Monitoring the sum of these ions signals may be useful for estimating alkane emissions from unburnt diesel fuel. Alkane fragmentation likely simplified the diesel exhaust mass spectrum and reduced potential mass interferences with isobaric aromatic compounds. It is shown that the relative abundances of VOCs changed as a function of engine load. Concentrations of aldehydes and ketones dominated those of aromatic species with formaldehyde and acetaldehyde estimated to be the most abundant VOCs in the PTR-MS mass spectrum at all engine loads. The relative abundances of benzene and toluene increased with engine load indicating their pyrogenic origin. The relative abundance of alkanes, aromatics, aldehydes, and alcohols was broadly consistent with literature publications of diesel exhaust analysis by gas chromatography. About 75% of the organic ion signal could be assigned. On line analysis of diesel exhaust using this technology may be valuable tool for diesel engine emission research.

Jobson, B Tom T.; Alexander, M. Lizabeth; Maupin, Gary D.; Muntean, George G.

2005-08-01T23:59:59.000Z

128

Polybenzimidazole compounds  

DOE Patents [OSTI]

A PBI compound that includes imidazole nitrogens, at least a portion of which are substituted with an organic-inorganic hybrid moiety. At least 85% of the imidazole nitrogens may be substituted. The organic-inorganic hybrid moiety may be an organosilane moiety, for example, (R)Me.sub.2SiCH.sub.2--, where R is selected from among methyl, phenyl, vinyl, and allyl. The PBI compound may exhibit similar thermal properties in comparison to the unsubstituted PBI. The PBI compound may exhibit a solubility in an organic solvent greater than the solubility of the unsubstituted PBI. The PBI compound may be included in separatory media. A substituted PBI synthesis method may include providing a parent PBI in a less than 5 wt % solvent solution. Substituting may occur at about room temperature and/or at about atmospheric pressure. Substituting may use at least five equivalents in relation to the imidazole nitrogens to be substituted or, preferably, about fifteen equivalents.

Klaehn, John R. (Idaho Falls, ID); Peterson, Eric S. (Idaho Falls, ID); Wertsching, Alan K. (Idaho Falls, ID); Orme, Christopher J. (Shelley, ID); Luther, Thomas A. (Idaho Falls, ID); Jones, Michael G. (Pocatello, ID)

2010-08-10T23:59:59.000Z

129

VOLUME 77, NUMBER 19 P H Y S I C A L R E V I E W L E T T E R S 4 NOVEMBER 1996 Incommensurate Intermodulation of an Organic Intergrowth Compound  

E-Print Network [OSTI]

Intermodulation of an Organic Intergrowth Compound Observed by Neutron Scattering R. Lefort,1 J. Etrillard,1 B occurs around 160 K. The neutron scattering experiments were performed at

Boyer, Edmond

130

Occurrence and Potential Human-Health Relevance of Volatile Organic Compounds in Drinking Water from Domestic Wells in the United States  

E-Print Network [OSTI]

Occurrence and Potential Human-Health Relevance of Volatile Organic Compounds in Drinking Water from Domestic Wells in the United States *Barbara L. Rowe1 , Patricia L. Toccalino2 , Michael J. Moran1 , John S. Zogorski1 , Curtis V. Price1 1 United States Geological Survey, Road, Rapid City, SD 57702 USA

131

Effects of organic silicon compounds as additives on charge–discharge cycling efficiencies of lithium in nonaqueous electrolytes for rechargeable lithium cells  

Science Journals Connector (OSTI)

Abstract Influence of mixing organic silicon compounds into 1 M (M: mol L?1) LiPF6-ethylene carbonate (EC)/ethylmethyl carbonate (EMC) (mixing volume ratio = 3:7) mixed solvent electrolytes on charge–discharge cycling efficiencies of lithium metal negative electrodes is examined. As organic silicon compounds, polyether-modified siloxanes with polyethylene oxide chains, chlorotrimethylsilane, tetraethoxysilane, cis-tetra [isobutyl (dimethylsiloxy)] cyclotetrasiloxane and cage-type silsesquioxane are investigated. Charge–discharge cycling tests of lithium are galvanostatically carried out using stainless steel working electrodes. Charge–discharge cycling efficiencies of lithium tend to improve by mixing organic silicon compounds. A cage-type silsesquioxane, octaphenyloctasilsesquioxane (Ph8T8) exhibits the highest cycling efficiency of approximately 80% with small mixing amount of 0.02 M Ph8T8. Mechanism of enhancement of lithium cycling efficiencies by mixing organic silicon compounds is considered to be due to the suppression of excess reduction of LiPF6-EC/EMC by lithium and the growth of surface film on lithium.

Ryota Yanagisawa; Hisayuki Endo; Masafumi Unno; Hideyuki Morimoto; Shin-ichi Tobishima

2014-01-01T23:59:59.000Z

132

The conversion of solar energy to the chemical energy of organic compounds is a complex process that includes electron transport and  

E-Print Network [OSTI]

The conversion of solar energy to the chemical energy of organic compounds is a complex process would cause severe problems if special mechanisms did not protect the photosynthetic system from energy or photon units. Irradiance is the amount of energy that falls on a flat sensor of known area per

Ehleringer, Jim

133

Dictionary of Organic Compounds  

Science Journals Connector (OSTI)

... an illustration of the considerable increase in the number of entries, the section from “Carene” to “Carvoxime” has grown from 3£ to 7 pages. In a work ...

JOHN READ

1943-11-20T23:59:59.000Z

134

High-precision optical measurements of 13C/12C isotope ratios in organic compounds at natural abundance  

Science Journals Connector (OSTI)

High-precision...compounds at natural abundance...catalytic combustor, and an isotopic...challenge to the high-cost and...carbon dioxide gas, using...temperature and pressure from which...of carbon gases . Spectrochim...2008 ) High precision...compounds at natural abundance...catalytic combustor, and...

Richard N. Zare; Douglas S. Kuramoto; Christa Haase; Sze M. Tan; Eric R. Crosson; Nabil M. R. Saad

2009-01-01T23:59:59.000Z

135

Fatty Acids from Lipids of Marine Organisms: Molecular Biodiversity, Roles as Biomarkers, Biologically Active Compounds, and Economical Aspects  

Science Journals Connector (OSTI)

Because of their characteristic living environments, marine organisms produce a variety of lipids. Fatty acids constitute the essential part of triglycerides and wax esters, which are the major components ...

Jean-Pascal Bergé; Gilles Barnathan

2005-01-01T23:59:59.000Z

136

Mechanisms of synfuel degradation 1. Effects of organic nitrogen compounds on the stability of a shale derived diesel fuel  

SciTech Connect (OSTI)

A reliable accelerated fuel stability test regimen has been developed and applied to the study of the storage stability of a shale derived diesel fuel marine (DFM). The results of a survey of nitrogen compounds as dopants in a stable shale DFM base fuel indicate that some pyrroles and indoles may play significant roles in storage stability. A complete stability test matrix has been developed for the temperatures of 43, 65 and 80/sup 0/C, for time periods between 4 and 179 days, and for a ten-fold concentration range of a model dopant, 2,5-dimethylpyrrole (DMP). Stability was defined by the amount of total insoluble material (filterable sediment and adherent gum) produced after stress, and also by the amount of titratable peroxide present in the filtrates of stressed fuel samples. A very regular pattern for insolubles formation was found within the test matrix. Deposit formation rates exhibited a first-order dependence on DMP concentration, with an apparent activation energy of 11-12 kcal/mol. The sediment was found to contain 12% nitrogen and 18-20% oxygen irrespective of the stress conditions employed.

Cooney, J.V.; Beal, E.J.; Huzlett, R.N.

1984-01-01T23:59:59.000Z

137

Versatile piezoelectric pulsed molecular beam source for gaseous compounds and organic molecules with femtomole accuracy for UHV and surface science applications  

SciTech Connect (OSTI)

This note describes the construction of a piezoelectric pulsed molecular beam source based upon a design presented in an earlier work [D. Proch and T. Trickl, Rev. Sci. Instrum. 60, 713 (1988)]. The design features significant modifications that permit the determination of the number of molecules in a beam pulse with an accuracy of 1x10{sup 11} molecules per pulse. The 21 cm long plunger-nozzle setup allows the molecules to be brought to any point of the UHV chamber with very high intensity. Furthermore, besides typical gaseous compounds, also smaller organic molecules with a vapor pressure higher than 0.1 mbar at room temperature may serve as feed material. This makes the new design suitable for various applications in chemical and surface science studies.

Schiesser, Alexander; Schaefer, Rolf [Eduard-Zintl-Institut fuer Anorganische und Physikalische Chemie, Technische Universitaet Darmstadt, Petersenstrasse 20, 64287 Darmstadt (Germany)

2009-08-15T23:59:59.000Z

138

Use of solid waste for chemical stabilization: Adsorption isotherms and {sup 13}C solid-state NMR study of hazardous organic compounds sorbed on coal fly ash  

SciTech Connect (OSTI)

Adsorption of hazardous organic compounds on the Dave Johnston plant fly ash is described. Fly ash from Dave Johnston and Laramie River power plants were characterized using elemental, x-ray, and {sup 29}Si NMR; the Dave Johnston (DJ) fly ash had higher quartz contents, while the Laramie River fly ash had more monomeric silicate anions. Adsorption data for hydroaromatics and chlorobenzenes indicate that the adsorption capacity of DJ coal fly ash is much less than that of activated carbon by a factor of >3000; but it is needed to confirm that solid-gas and solid-liquid equilibrium isotherms can indeed be compared. However, for pyridine, pentachlorophenol, naphthalene, and 1,1,2,2-tetrachloroethane, the DJ fly ash appears to adsorb these compounds nearly as well as activated carbon. {sup 13}C NMR was used to study the adsorption of hazardous org. cpds on coal fly ash; the nuclear spin relaxation times often were very long, resulting in long experimental times to obtain a spectrum. Using a jumbo probe, low concentrations of some hazardous org. cpds could be detected; for pentachlorophenol adsorbed onto fly ash, the chemical shift of the phenolic carbon was changed. Use of NMR to study the adsorption needs further study.

Netzel, D.A.; Lane, D.C.; Rovani, J.F.; Cox, J.D.; Clark, J.A.; Miknis, F.P.

1993-09-01T23:59:59.000Z

139

Comparative evaluation of several small mammal species as monitors of heavy metals, radionuclides, and selected organic compounds in the environment  

SciTech Connect (OSTI)

The primary purpose of this study was to evaluate which small mammal species are the best monitors of specific environmental contaminants. The evaluation is based on the published literature and on an analysis of small mammals trapped at several sites on the Oak Ridge National Laboratory (ORNL) Reservation in Oak Ridge, Tennessee. Studies on the uptake of heavy metals, radionuclides, and organic chemicals are reviewed in Chapter II to evaluate several small mammal species for their capacity to serve as sentinels for the presence, accumulation, and effects of various contaminants. Where several species were present at a site, a comparative evaluation was made and species are ranked for their capacity to serve as monitors of specific contaminants. Food chain accumulation and food habits of the species are used to establish a relationship with suitability as a biomonitor. Tissue-specific concentration factors were noted in order to establish target tissues. Life histories, habitat, and food habits are reviewed in order to make generalizations concerning the ability of similar taxa to serve as biomonitor. Finally, the usefulness of several small mammal species as monitors of three contaminants -- benzo(a)pyrene, mercury, and strontium-90 -- present on or near the ORNL facilities was investigated. 133 refs., 5 figs., 20 tabs.

Talmage, S.S. (Tennessee Univ., Knoxville, TN (USA) Oak Ridge National Lab., TN (USA)); Walton, B.T. (Oak Ridge National Lab., TN (USA))

1990-08-01T23:59:59.000Z

140

Organization  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Organization Print Organization Print 2012-12 org chart A complete ALS organization chart (June 2013) is available in PDF. Appointed and elected members of advisory panels provide guidance to Berkeley Lab and ALS management in developing the ALS scientific and user programs. ALS Staff Photo staff photo thumb Click on the image to see a recent photo of ALS staff in front of the dome. The photo was taken on May 14, 2013. ALS Management and Advisory Team Steve Kevan, Deputy Division Director, Science Michael J. Banda, Deputy Division Director, Operations Robert W. Schoenlein, Senior Staff Scientist, Next Generation Light Source Initiative Janos Kirz, Scientific Advisor Paul Adams, Division Deputy for Biosciences ALS Scientific, Technical, and User Support Groups Accelerator Physics

Note: This page contains sample records for the topic "organic compounds tetraphenylborate" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Removal of organic compounds and trace metals from oil sands process-affected water using zero valent iron enhanced by petroleum coke  

Science Journals Connector (OSTI)

Abstract The oil production generates large volumes of oil sands process-affected water (OSPW), referring to the water that has been in contact with oil sands or released from tailings deposits. There are concerns about the environmental impacts of the release of OSPW because of its toxicity. Zero valent iron alone (ZVI) and in combination with petroleum coke (CZVI) were investigated as environmentally friendly treatment processes for the removal of naphthenic acids (NAs), acid-extractable fraction (AEF), fluorophore organic compounds, and trace metals from OSPW. While the application of 25 g/L ZVI to OSPW resulted in 58.4% removal of \\{NAs\\} in the presence of oxygen, the addition of 25 g petroleum coke (PC) as an electron conductor enhanced the \\{NAs\\} removal up to 90.9%. The increase in ZVI concentration enhanced the removals of NAs, AEF, and fluorophore compounds from OSPW. It was suggested that the electrons generated from the oxidation of ZVI were transferred to oxygen, resulting in the production of hydroxyl radicals and oxidation of NAs. When OSPW was de-oxygenated, the \\{NAs\\} removal decreased to 17.5% and 65.4% during treatment with ZVI and CZVI, respectively. The removal of metals in ZVI samples was similar to that obtained during CZVI treatment. Although an increase in ZVI concentration did not enhance the removal of metals, their concentrations effectively decreased at all ZVI loadings. The Microtox® bioassay with Vibrio fischeri showed a decrease in the toxicity of ZVI- and CZVI-treated OSPW. The results obtained in this study showed that the application of ZVI in combination with PC is a promising technology for OSPW treatment.

Parastoo Pourrezaei; Alla Alpatova; Kambiz Khosravi; Przemys?aw Drzewicz; Yuan Chen; Pamela Chelme-Ayala; Mohamed Gamal El-Din

2014-01-01T23:59:59.000Z

142

Exhaust emissions of volatile organic compounds of powered two-wheelers: Effect of cold start and vehicle speed. Contribution to greenhouse effect and tropospheric ozone formation  

Science Journals Connector (OSTI)

Abstract Powered two-wheeler (PTW) vehicles complying with recent European type approval standards (stages Euro 2 and Euro 3) were tested on chassis dynamometer in order to measure exhaust emissions of about 25 volatile organic compounds (VOCs) in the range C1–C7, including carcinogenic compounds as benzene and 1,3-butadiene. The fleet consists of a moped (engine capacity ? 50 cm3) and three fuel injection motorcycles of different engine capacities (150, 300 and 400 cm3). Different driving conditions were tested (US FPT cycle, constant speed). Due to the poor control of the combustion and catalyst efficiency, moped is the highest pollutant emitter. In fact, fuel injection strategy and three way catalyst with lambda sensor are able to reduce VOC motorcycles' emission of about one order of magnitude with respect to moped. Cold start effect, that is crucial for the assessment of actual emission of \\{PTWs\\} in urban areas, was significant: 30–51% of extra emission for methane. In the investigated speed range, moped showed a significant maximum of VOC emission factor at minimum speed (10 km/h) and a slightly decreasing trend from 20 to 60 km/h; motorcycles showed on the average a less significant peak at 10 km/h, a minimum at 30–40 km/h and then an increasing trend with a maximum emission factor at 90 km/h. Carcinogenic \\{VOCs\\} show the same pattern of total VOCs. Ozone Formation Potential (OFP) was estimated by using Maximum Incremental Reactivity scale. The greatest contribution to tropospheric ozone formation comes from alkenes group which account for 50–80% to the total OFP. VOC contribution effect on greenhouse effect is negligible with respect to CO2 emitted.

M. Antonietta Costagliola; Fabio Murena; M. Vittoria Prati

2014-01-01T23:59:59.000Z

143

Development of efficiency-enhanced cogeneration system utilizing high-temperature exhaust-gas from a regenerative thermal oxidizer for waste volatile-organic-compound gases  

Science Journals Connector (OSTI)

We have developed a gas-turbine cogeneration system that makes effective use of the calorific value of the volatile organic compound (VOC) gases exhausted during production processes at a manufacturing plant. The system utilizes the high-temperature exhaust-gas from the regenerative thermal oxidizer (RTO) which is used for incinerating VOC gases. The high-temperature exhaust gas is employed to resuperheat the steam injected into the gasturbine. The steam-injection temperature raised in this way increases the heat input, resulting in the improved efficiency of the gas-turbine. Based on the actual operation of the system, we obtained the following results: • Operation with the steam-injection temperature at 300 °C (45 °C resuperheated from 255 °C) increased the efficiency of the gasturbine by 0.7%. • The system can enhance the efficiency by 1.3% when the steam-injection temperature is elevated to 340 °C (85 °C resuperheated). In this case, up to 6.6 million yen of the total energy cost and 400 tons of carbon dioxide (CO2) emissions can be reduced annually. • A gas-turbine cogeneration and RTO system can reduce energy consumption by 23% and CO2 emission by 30.1% at the plant.

Masaaki Bannai; Akira Houkabe; Masahiko Furukawa; Takao Kashiwagi; Atsushi Akisawa; Takuya Yoshida; Hiroyuki Yamada

2006-01-01T23:59:59.000Z

144

Measurements of volatile organic compounds at a suburban ground site (T1) in Mexico City during the MILAGRO 2006 campaign: Measurement comparison, emission ratios, and source attribution  

SciTech Connect (OSTI)

Volatile organic compound (VOC) mixing ratios were measured with two different instruments at the T1 ground site in Mexico City during the Megacity Initiative: Local and Global Research Observations (MILAGRO) campaign in March of 2006. A gas chromatograph with flame ionization detector (GC-FID) quantified 18 light alkanes, alkenes and acetylene while a proton-transfer-reaction ion-trap mass spectrometer (PIT-MS) quantified 12 VOC species including oxygenated VOCs (OVOCs) and aromatics. A GC separation system was used in conjunction with the PIT-MS (GC-PIT-MS) to evaluate PIT-MS measurements and to aid in the identification of unknown VOCs. The VOC measurements are also compared to simultaneous canister samples and to two independent proton-transfer-reaction mass spectrometers (PTR-MS) deployed on a mobile and an airborne platform during MILAGRO. VOC diurnal cycles demonstrate the large influence of vehicle traffic and liquid propane gas (LPG) emissions during the night and photochemical processing during the afternoon. Emission ratios for VOCs and OVOCs relative to CO are derived from early-morning measurements. Average emission ratios for non-oxygenated species relative to CO are on average a factor of {approx}2 higher than measured for US cities. Emission ratios for OVOCs are estimated and compared to literature values the northeastern US and to tunnel studies in California. Positive matrix factorization analysis (PMF) is used to provide insight into VOC sources and processing. Three PMF factors were distinguished by the analysis including the emissions from vehicles, the use of liquid propane gas and the production of secondary VOCs + long-lived species. Emission ratios to CO calculated from the results of PMF analysis are compared to emission ratios calculated directly from measurements. The total PIT-MS signal is summed to estimate the fraction of identified versus unidentified VOC species.

Bon, D.M.; Springston, S.; M.Ulbrich, I.; de Gouw, J. A.; Warneke, C.; Kuster, W. C.; Alexander, M. L.; Baker, A.; Beyersdorf, A. J.; Blake, D.; Fall, R.; Jimenez, J. L., Herndon, S. C.; Huey, L. G.; Knighton, W. B.; Ortega, J.; Vargas, O.

2011-03-16T23:59:59.000Z

145

A Pilot Study of the Effectiveness of Indoor Plants for Removal of Volatile Organic Compounds in Indoor Air in a Seven-Story Office Building  

SciTech Connect (OSTI)

The Paharpur Business Centre and Software Technology Incubator Park (PBC) is a 7 story, 50,400 ft{sup 2} office building located near Nehru Place in New Delhi India. The occupancy of the building at full normal operations is about 500 people. The building management philosophy embodies innovation in energy efficiency while providing full service and a comfortable, safe, healthy environment to the occupants. Provision of excellent Indoor Air Quality (IAQ) is an expressed goal of the facility, and the management has gone to great lengths to achieve it. This is particularly challenging in New Delhi, where ambient urban pollution levels rank among the worst on the planet. The approach to provide good IAQ in the building includes a range of technical elements: air washing and filtration of ventilation intake air from rooftop air handler, the use of an enclosed rooftop greenhouse with a high density of potted plants as a bio-filtration system, dedicated secondary HVAC/air handling units on each floor with re-circulating high efficiency filtration and UVC treatment of the heat exchanger coils, additional potted plants for bio-filtration on each floor, and a final exhaust via the restrooms located at each floor. The conditioned building exhaust air is passed through an energy recovery wheel and chemisorbent cartridge, transferring some heat to the incoming air to increase the HVAC energy efficiency. The management uses 'green' cleaning products exclusively in the building. Flooring is a combination of stone, tile and 'zero VOC' carpeting. Wood trim and finish appears to be primarily of solid sawn materials, with very little evidence of composite wood products. Furniture is likewise in large proportion constructed from solid wood materials. The overall impression is that of a very clean and well-kept facility. Surfaces are polished to a high sheen, probably with wax products. There was an odor of urinal cake in the restrooms. Smoking is not allowed in the building. The plants used in the rooftop greenhouse and on the floors were made up of a number of species selected for the following functions: daytime metabolic carbon dioxide (CO{sub 2}) absorption, nighttime metabolic CO{sub 2} absorption, and volatile organic compound (VOC) and inorganic gas absorption/removal for air cleaning. The building contains a reported 910 indoor plants. Daytime metabolic species reported by the PBC include Areca Palm, Oxycardium, Rubber Plant, and Ficus alii totaling 188 plants (21%). The single nighttime metabolic species is the Sansevieria with a total of 28 plants (3%). The 'air cleaning' plant species reported by the PBC include the Money Plant, Aglaonema, Dracaena Warneckii, Bamboo Palm, and Raphis Palm with a total of 694 plants (76%). The plants in the greenhouse (Areca Palm, Rubber Plant, Ficus alii, Bamboo Palm, and Raphis Palm) numbering 161 (18%) of those in the building are grown hydroponically, with the room air blown by fan across the plant root zones. The plants on the building floors are grown in pots and are located on floors 1-6. We conducted a one-day monitoring session in the PBC on January 1, 2010. The date of the study was based on availability of the measurement equipment that the researchers had shipped from Lawrence Berkeley National Lab in the U.S.A. The study date was not optimal because a large proportion of the regular building occupants were not present being New Year's Day. An estimated 40 people were present in the building all day during January 1. This being said, the building systems were in normal operations, including the air handlers and other HVAC components. The study was focused primarily on measurements in the Greenhouse and 3rd and 5th floor environments as well as rooftop outdoors. Measurements included a set of volatile organic compounds (VOCs) and aldehydes, with a more limited set of observations of indoor and outdoor particulate and carbon dioxide concentrations. Continuous measurements of Temperature (T) and relative humidity (RH) were made selected indoor and outdoor locations.

Apte, Michael G.; Apte, Joshua S.

2010-04-27T23:59:59.000Z

146

MST: Organizations: Organic Materials  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Adhesive Bonding Adhesive Bonding Composites Encapsulation Materials Characterization Mechanical Testing Molding, Thermoforming, & Compounding Organizations Organic Materials Composite-to-metal adhesive bond Experimental/analytical study of composit-to-metal adhesive bond. The Organic Materials department in the Advanced Manufacturing and Processing Laboratory provides innovative prototype fabrication, full service small lot production, materials technology, processing expertise, and a broad range of organic material characterization and mechanical testing techniques. We encapsulate, we join and bond, we foam, we analyze and image, we build composite structures. We strive to make you, our customers, successful! We partner with you to find the right combination of materials, processing, and fixturing that will result in the highest value

147

The use of radon (Rn-222) and volatile organic compounds in monitoring soil gas to localize NAPL contamination at a gas station in Rio Claro, São Paulo State, Brazil  

Science Journals Connector (OSTI)

Abstract This study focuses on the presence of radon (222Rn) and volatile organic compounds (VOCs) in soil gases at a gas station located in the city of Rio Claro, São Paulo, Brazil, where a fossil fuel leak occurred. The spatial distribution results show a correlation between 222Rn and VOCs, consistent with the fact that radon gas has a greater chemical affinity with organic phases than with water. This finding demonstrates that the presence of a residual hydrocarbon phase in an aquifer can retain radon, leading to a reduced radon content in the soil gas. The data in this study confirm the results of previous investigations, in which the method used in this study provided a preliminary fingerprint of a contaminated area. Furthermore, the data analysis time is brief, and only simple equipment is required.

E.Q. Barbosa; J.A. Galhardi; D.M. Bonotto

2014-01-01T23:59:59.000Z

148

Complete Detoxification of Short Chain Chlorinated Aliphatic Compounds: Isolation of Halorespiring Organisms and Biochemical Studies of the Dehalogenating Enzyme Systems - Final Report  

SciTech Connect (OSTI)

Work focused on the isolation and characterization of halorespiring populations, and the initial investigation of the dechlorinating enzyme systems. In addition, tools to evaluate the presence/activity to halorespiring populations in the environment were developed. The tools developed in this work (measurements of hydrogen consumption thresholds, molecular probes) are relevant for regulatory agencies in order to facilitate decisions on which bioremediation technology (biostimulation or bioaugmentation) is most promising at a particular site. In addition, a better understanding of the physiology of the halorespiring organisms as well as the biochemistry of the dehalogenating enzyme systems enhances our knowledge of how these organisms can successfully be employed in the bioremediation of contaminated sites.

Tiedje, J.M.

1999-10-01T23:59:59.000Z

149

Methyl tert-butyl ether (MTBE) is a volatile organic com-pound (VOC) derived from natural gas that is added to gas-  

E-Print Network [OSTI]

Methyl tert-butyl ether (MTBE) is a volatile organic com- pound (VOC) derived from natural gas Water in Urban and Agricultural Areas made from methanol, which is derived primarily from natural gas that is added to gas- oline either seasonally or year round in many parts of the United States to increase

150

Communication accepte: Healthy Buildings/IAQ'97 Washington DC, septembre 1997Communication accepte: Healthy Buildings/IAQ'97 Washington DC, septembre 1997 DISCRIMINATION OF VOLATILE ORGANIC COMPOUNDS  

E-Print Network [OSTI]

Communication acceptée: Healthy Buildings/IAQ'97 Washington DC, septembre 1997Communication acceptée: Healthy Buildings/IAQ'97 Washington DC, septembre 1997 DISCRIMINATION OF VOLATILE ORGANIC manuscript, published in "4th International Conference on Healthy Buildings'97, Washington : United States

Paris-Sud XI, Université de

151

Semivolatile Organic Compounds (SVOCs) Semivolatile organic compounds (SVOCs) are a group of compounds that includes some  

E-Print Network [OSTI]

) Triclosan Antimicrobial Toothpaste, hand/dish soaps Polychlorinated Biphenyls Heat-transfer fluid Food

Iglesia, Enrique

152

A numerical solution to three-dimensional multiphase transport of volatile organic compounds in unsaturated soils -- with an application to the remedial method of in-situ volatilization. Part I: Theoretical development  

SciTech Connect (OSTI)

Part I of this paper presents the development and application of a numerical model for determining the fate and transport of volatile organic compounds (VOCS) in the unsaturated zone resulting from forced volatilization and gaseous advection-dispersion of organic vapor in a multipartitioned three-dimensional environment. The model allows for single-component transport in the gas and water phases. The hydrocarbon is assumed to be in specific retention and, therefore, immobile. Partitioning of the hydrocarbon between the oil, water, gas, and soil is developed as rate-limited functions that are incorporated into sink/source terms in the transport equations. The code for the model was developed specifically to investigate in-situ volatilization (ISV) remedial strategies, predict the extent of cleanup from information obtained at a limited number of measurement locations, and to help design ISV remedial systems. Application of the model is demonstrated for a hypothetical one-dimensional ISV system. Part II of this paper will present the analysis of an existing ISV system using the full three-dimensional capability of the model.

Filley, T.; Tomasko, D.

1992-04-01T23:59:59.000Z

153

Partitioning of Volatile Organics in Diesel Particulate and Exhaust  

Broader source: Energy.gov [DOE]

Evaluation of how sampling details affect the measurement of volatile organic compounds in diesel exhaust

154

Microwave plasma conversion of volatile organic compounds  

E-Print Network [OSTI]

MHz; Gerling Laboratory) and a resonant plasma tuner (ASTEX) were used to generate an argon/steam- based plasma at one atmosphere

Ko, Y; Yang, G S; Chang, DPY; Kennedy, Ian M

2003-01-01T23:59:59.000Z

155

Oxidation of Organic Compounds in the Soil.  

E-Print Network [OSTI]

.................... ltudy by Means of Carbon Dioxide Formed 8 ............................... lomparison of . Various Materials 9 ...................................... lffect of Nature of Soil 14 ..................................... Ixidation of Soil Carbon 18... was drawn to take out the carbon dioxide. Althongl~ such experi- ments are well adapted to estimate carbon cliosicle, obviously, such con- ditions do not prevail in the soil, and while it is possible that Wollnp's conclusions may appl~r to the soil uncler...

Fraps, G. S. (George Stronach)

1915-01-01T23:59:59.000Z

156

Introduction Compound-specific identification, or biomarker analysis,  

E-Print Network [OSTI]

269 Introduction Compound-specific identification, or biomarker analysis, in organic geochemistry cases highlighting subtle yet important details not revealed by bulk analyses alone. For example

Long, Bernard

157

Mixed crystal organic scintillators  

DOE Patents [OSTI]

A mixed organic crystal according to one embodiment includes a single mixed crystal having two compounds with different bandgap energies, the organic crystal having a physical property of exhibiting a signal response signature for neutrons from a radioactive source, wherein the signal response signature does not include a significantly-delayed luminescence characteristic of neutrons interacting with the organic crystal relative to a luminescence characteristic of gamma rays interacting with the organic crystal. According to one embodiment, an organic crystal includes bibenzyl and stilbene or a stilbene derivative, the organic crystal having a physical property of exhibiting a signal response signature for neutrons from a radioactive source.

Zaitseva, Natalia P; Carman, M Leslie; Glenn, Andrew M; Hamel, Sebastien; Hatarik, Robert; Payne, Stephen A; Stoeffl, Wolfgang

2014-09-16T23:59:59.000Z

158

Novel amine-based presursor compounds and composite membranes thereof  

DOE Patents [OSTI]

Novel amine-based precursor compounds comprising the condensation products of dialkylenetriamine and alpha, beta-unsaturated acid halides are disclosed, as well as composite membranes containing such compounds, the membranes being useful in RO-type processes for desalination and the removal of low molecular weight organic compounds such as phenols and carboxylic acids.

Lee, Eric K. L. (Wilmington, DE); Tuttle, Mark E. (Bend, OR)

1989-01-01T23:59:59.000Z

159

Sorption of naphthoic acids and quinoline compounds to estuarine sediment  

E-Print Network [OSTI]

Sorption of naphthoic acids and quinoline compounds to estuarine sediment William D. Burgos The sorption of 16 ionizable organic compounds (IOCs) to an estuarine sediment was measured in synthetic were quinoline compounds. The linear sorption distribution coefficient (Kd) was used to correlate

Burgos, William

160

Process for reducing aromatic compounds in ethylenediamine with calcium  

DOE Patents [OSTI]

Olefins are produced by containing an organic compound having at least one benzene ring with ethylenediamine and calcium metal, the calcium metal being used in large excess or alternatively in conjunction with an inert abrasive particulate substance. Substantially all of the organic compounds are converted to corresponding cyclic olefins, largely mono-olefins.

Benkeser, R.A.; Laugal, J.A.; Rappa, A.

1985-08-06T23:59:59.000Z

Note: This page contains sample records for the topic "organic compounds tetraphenylborate" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Mononuclear Organolead Compounds  

Science Journals Connector (OSTI)

Tetraorganolead compounds in general exhibit lower thermal stability and greater reactivity than the corresponding compounds of the lighter Group 14 elements. The thermal stability is strongly dependent on the...

Friedo Huber; Wolfgang Petz

1987-01-01T23:59:59.000Z

162

Partitioning of Volatile Organics in Diesel Particulate and Exhaust...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

and Exhaust Partitioning of Volatile Organics in Diesel Particulate and Exhaust Evaluation of how sampling details affect the measurement of volatile organic compounds in...

163

Elements & Compounds Atoms (Elements)  

E-Print Network [OSTI]

#12;Elements & Compounds #12;Atoms (Elements) Molecules (Compounds) Cells Elements & Compounds #12;Nucleus Electrons Cloud of negative charge (2 electrons) Fig. 2.5: Simplified model of a Helium (He) Atom He 4.002602 2 Helium Mass Number (~atomic mass) = number of Neutrons + Protons = 4 for Helium Atomic

Frey, Terry

164

Fluorine Speciation Analysis Using Reverse Phase Liquid Chromatography Coupled Off-Line to Continuum Source Molecular Absorption Spectrometry (CS-MAS): Identification and Quantification of Novel Fluorinated Organic Compounds in Environmental and Biological Samples  

Science Journals Connector (OSTI)

(1-4) Perfluorinated compounds (PFCs) are especially well-known for their unusual solubility, being simultaneously hydro- and lipophobic. ... (5, 6) This recognition has triggered a boost in interest in the monitoring of PFCs in water, wildlife and food. ... Chemicals used for AAS modifiers, reported by Gleisner et al.,(17) included gallium nitride (99.9%, ...

Zhiwei Qin; David McNee; Heike Gleisner; Andrea Raab; Kwaku Kyeremeh; Marcel Jaspars; Eva Krupp; Hai Deng; Jörg Feldmann

2012-06-11T23:59:59.000Z

165

Electric Turbo Compounding Technology Update  

Broader source: Energy.gov (indexed) [DOE]

Turbo Compounding Technology Update Electric Turbo Compounding Technology Update 15 August, 2007 Carl Vuk 15 August, 2007 Carl Vuk Electric Turbo Compounding Highlights Electric...

166

Partially fluorinated ionic compounds  

DOE Patents [OSTI]

Partially fluorinated ionic compounds are prepared. They are useful in the preparation of partially fluorinated dienes, in which the repeat units are cycloaliphatic.

Han, legal representative, Amy Qi (Hockessin, DE); Yang, Zhen-Yu (Hockessin, DE)

2008-11-25T23:59:59.000Z

167

Process for forming a metal compound coating on a substrate  

DOE Patents [OSTI]

A method of coating a substrate with a thin layer of a metal compound by forming a dispersion of an electrophoretically active organic colloid and a precursor of the metal compound in an electrolytic cell in which the substrate is an electrode. Upon application of an electric potential, the electrode is coated with a mixture of the organic colloid and the precursor to the metal compound, and the coated substrate is then heated in the presence of an atmosphere or vacuum to decompose the organic colloid and form a coating of either a combination of metal compound and carbon, or optionally forming a porous metal compound coating by heating to a temperature high enough to chemically react the carbon.

Sharp, Donald J. (Albuquerque, NM); Vernon, Milton E. (Albuquerque, NM); Wright, Steven A. (Albuquerque, NM)

1991-01-01T23:59:59.000Z

168

Process for forming a metal compound coating on a substrate  

DOE Patents [OSTI]

A method of coating a substrate with a thin layer of a metal compound by forming a dispersion of an electrophoretically active organic colloid and a precursor of the metal compound in an electrolytic cell in which the substrate is an electrode. Upon application of an electric potential, the electrode is coated with a mixture of the organic colloid and the precursor to the metal compound, and the coated substrate is then heated in the presence of an atmosphere or vacuum to decompose the organic colloid and form a coating of either a combination of metal compound and carbon, or optionally forming a porous metal compound coating by heating to a temperature high enough to chemically react the carbon.

Sharp, D.J.; Vernon, M.E.; Wright, S.A.

1988-06-29T23:59:59.000Z

169

Control of insects and spider mites by translocated compounds  

E-Print Network [OSTI]

applied to soil could be detected in a bioassay method using Aedes larvae. Schrader (1947a), working in Germany during World War II, prepared several phosphorus and fluorine compounds that were shown to be systemic. These compounds were taken up... ............................ .. . . . 113 Attempts to Isolate a Toxic Principle from Plants Treated with Octamethyl Pyrophosphoramide ? ? ? ? ? ? . . ? 118 RELATIONSHIP BETWEEN CHEMICAL STRUCTURE AND SYSTEMIC ACTIVITY OF ORGANIC PHOSPHORUS COMPOUNDS............... 125 Derivatives...

Ivy, Edward Everett

2013-10-04T23:59:59.000Z

170

Organic Molecule Functionalized Zn3P2 Nanowire Inorganic-Organic Hybrid Thermoelectrics  

Broader source: Energy.gov [DOE]

Demonstrates self-catalytic schemes for large-scale synthesis of compound semiconductor nanowire powders for inorganic-organic hybrid thermoelectric cells

171

Exploratory and Newer Compounds  

Science Journals Connector (OSTI)

In writing a chapter on “Exploratory and Newer Compounds” in a book concerned with anesthesia, the authors feel that it is most important to have a clear idea of the aims of their work. The “Why?” must never b...

T. H. S. Burns; A. Bracken

1972-01-01T23:59:59.000Z

172

Heart testing compound  

DOE Patents [OSTI]

The compound 15-(p-[.sup.125 I]-iodophenyl)-6-tellurapentadecanoic acid is disclosed as a myocardial imaging agent having rapid and pronounced uptake, prolonged myocardial retention, and low in vivo deiodination.

Knapp, Jr., Furn F. (Oak Ridge, TN); Goodman, Mark M. (Knoxville, TN)

1985-01-01T23:59:59.000Z

173

Heart testing compound  

DOE Patents [OSTI]

The compound 15-(p-(/sup 125/I)-iodophenyl)-6-tellurapentadecanoic acid is disclosed as a myocardial imaging agent having rapid and pronounced uptake, prolonged myocardial retention, and low in vivo deiodination.

Knapp, F.F. Jr.; Goodman, M.M.

1983-06-29T23:59:59.000Z

174

E-Print Network 3.0 - aromatic hydrocarbon compounds Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

bases in Iraq and Afghanistan that lack Summary: Compounds Toxic Organic Halogenated Dioxins Furans (dioxins) Polycyclic Aromatic Hydrocarbons found... and detected all of the...

175

E-Print Network 3.0 - aromatic chemical compounds Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

bases in Iraq and Afghanistan that lack Summary: Compounds Toxic Organic Halogenated Dioxins Furans (dioxins) Polycyclic Aromatic Hydrocarbons found... in burn pits include, but...

176

Organic Vegetable Organic Vegetable  

E-Print Network [OSTI]

marketed separately from conventionally grown produce in order to be profitably sold. Because of the amount of organic material include compost, Purdue University · Cooperative Extension Service · Knowledge to Go

177

Charge Density Wave Compounds  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Fisher Research Group Fisher Research Group Layered Chalcogenides 29 February 2008 Controlling the Wave by Brad Plummer, SLAC Communications Stanford University researchers working in part at SSRL have discovered a novel set of properties pertaining to a compound of materials called tritellurides. These compounds, composed of three atoms of tellurium and a single atom of one of the rare earth elements, demonstrate unique electronic properties that can be controlled by altering the temperature of the material. The tritellurides display phenomena known as charge density waves (CDW). In a normal conductive metal, electrons persist in a "sea" wherein they are evenly distributed and equally available, or conductive. A CDW occurs under certain circumstances and causes the electrons to clump together, lowering their availability, and thereby lowering the compound's conductivity. Tellurium, when crystallized into quasi-two-dimensional planes and combined with rare earth elements, produces a material with CDWs that can be manipulated and controlled.

178

Microoptical compound lens  

DOE Patents [OSTI]

An apposition microoptical compound lens comprises a plurality of lenslets arrayed around a segment of a hollow, three-dimensional optical shell. The lenslets collect light from an object and focus the light rays onto the concentric, curved front surface of a coherent fiber bundle. The fiber bundle transports the light rays to a planar detector, forming a plurality of sub-images that can be reconstructed as a full image. The microoptical compound lens can have a small size (millimeters), wide field of view (up to 180.degree.), and adequate resolution for object recognition and tracking.

Sweatt, William C. (Albuquerque, NM); Gill, David D. (Albuquerque, NM)

2007-10-23T23:59:59.000Z

179

Unsaturated macrocyclic carbonyl bridge compounds  

Science Journals Connector (OSTI)

Unsaturated macrocyclic carbonyl bridge compounds ... Catalytic Ring-Closing Metathesis of Doubly Armed, Bridged Bicyclic Sulfones. ...

C. F. H. Allen; J. A. VanAllan

1953-07-01T23:59:59.000Z

180

Compound floating pivot micromechanisms  

DOE Patents [OSTI]

A new class of tilting micromechanical mechanisms have been developed. These new mechanisms use compound floating pivot structures to attain far greater tilt angles than are practical using other micromechanical techniques. The new mechanisms are also capable of bi-directional tilt about multiple axes.

Garcia, Ernest J. (Albuquerque, NM)

2001-04-24T23:59:59.000Z

Note: This page contains sample records for the topic "organic compounds tetraphenylborate" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Polybenzimidazole Compounds, Polymeric Media, and Methods of Post-Polymerization Modifications  

Energy Innovation Portal (Marketing Summaries) [EERE]

INL has developed a patented process to handle and process polybenzimdazole (PBI) compounds that previously could only be handled in very heavy low vapor pressure organic solvents. With the new process the resulting compounds are modified to provide increased solubility in higher vapor pressure solvents and at significantly greater concentrations. These compounds may be utilized in a wide array of applications where high temperature and polymeric materials are utilized. Compounds made with...

2014-06-11T23:59:59.000Z

182

Science Organizations  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Organizations Science Organizations National security depends on science and technology. The United States relies on Los Alamos National Laboratory for the best of both. No place...

184

CHARACTERISTICS Nitrated compounds constitute a  

E-Print Network [OSTI]

compounds. If there is a chance of an explosive reaction, conduct the operation behind a blast shield

Wilcock, William

185

Naming chemical compounds: Calculator drill  

Science Journals Connector (OSTI)

36. Bits and pieces, 13. A calculator can be programmed to drill students on chemical compound naming rules.

David Holdsworth; Evelyn Lacanienta

1983-01-01T23:59:59.000Z

186

Organic Separation Test Results  

SciTech Connect (OSTI)

Separable organics have been defined as “those organic compounds of very limited solubility in the bulk waste and that can form a separate liquid phase or layer” (Smalley and Nguyen 2013), and result from three main solvent extraction processes: U Plant Uranium Recovery Process, B Plant Waste Fractionation Process, and Plutonium Uranium Extraction (PUREX) Process. The primary organic solvents associated with tank solids are TBP, D2EHPA, and NPH. There is concern that, while this organic material is bound to the sludge particles as it is stored in the tanks, waste feed delivery activities, specifically transfer pump and mixer pump operations, could cause the organics to form a separated layer in the tank farms feed tank. Therefore, Washington River Protection Solutions (WRPS) is experimentally evaluating the potential of organic solvents separating from the tank solids (sludge) during waste feed delivery activities, specifically the waste mixing and transfer processes. Given the Hanford Tank Waste Treatment and Immobilization Plant (WTP) waste acceptance criteria per the Waste Feed Acceptance Criteria document (24590-WTP-RPT-MGT-11-014) that there is to be “no visible layer” of separable organics in the waste feed, this would result in the batch being unacceptable to transfer to WTP. This study is of particular importance to WRPS because of these WTP requirements.

Russell, Renee L.; Rinehart, Donald E.; Peterson, Reid A.

2014-09-22T23:59:59.000Z

187

Boronated porphyrin compounds  

DOE Patents [OSTI]

A compound is described having the structure ##STR1## where R preferably is ##STR2## and most preferably R.sup.3 is a closo-carborane and R.sup.2 is --H, an alkyl or aryl having 1 to about 7 carbon atoms, This invention was made with Government support under NIH Grant No. CA-37961 awarded by the Department of Health and Human Services and under the Associated Universities Inc. Contract No. De-AC02-76CH00016 with the U.S. Department of Energy. The Government has rights in this invention.

Kahl, S.B.; Koo, M.S.

1992-09-22T23:59:59.000Z

188

Boronated porphyrin compounds  

DOE Patents [OSTI]

A compound is described having the structure ##STR1## where R preferably is ##STR2## and most preferably R.sup.3 is a closo-carborane and R.sup.2 is --H, an alkyl or aryl having 1 to about 7 carbon atoms, This invention was made with Government support under NIH Grant No. CA-37961 awarded by the Department of Health and Human Services and under the Associated Universities Inc. Contract No. De-AC02-76CH00016 with the U.S. Department of Energy. The Government has rights in this invention.

Kahl, Stephen B. (Portola Valley, CA); Koo, Myoung-Seo (San Francisco, CA)

1992-01-01T23:59:59.000Z

189

Organization | Department of Energy  

Energy Savers [EERE]

About Us Organization Organization Organization Printable PDF News & Blog CIO Leadership Organization Contact Us...

190

Organization | Department of Energy  

Office of Environmental Management (EM)

About Us Organization Organization Organization News Leadership Organization History Careers Contact Us...

191

Synthesis and thermal studies of flexible polyurethane nanocomposite foams obtained using nanoclay modified with flame retardant compound  

Science Journals Connector (OSTI)

This work presents thermal studies of nanocomposites based on the flexible polyurethane (PU) matrix and filled using montmorillonite organically modified with organophosphorus flame retardant compound. Flexibl...

?ukasz Piszczyk; Magdalena Danowska…

2014-11-01T23:59:59.000Z

192

2 Extracting and trapping biogenic 3 volatile organic compounds stored  

E-Print Network [OSTI]

, Subcritical water extraction; UAE, Ultrasound-assisted extraction 36 1. Introduction Plants release

Goldstein, Allen

193

Glossary of Volatile Organic Compounds Ethylbenzene Carbon tetrachloride  

E-Print Network [OSTI]

;Ethylbenzene Ethylbenzene is a colorless, flammable liquid found in natural products such as coal tar and petroleum. It is also found in manufactured products such as inks, insecticides, and paints. Ethylbenzene in the air. In surface water, ethylbenzene breaks down by reacting with other chemicals found naturally

194

The Effect of Organic Compounds in Pot Experiments.  

E-Print Network [OSTI]

SUBSTATIONS P. L. DowNs, President, Temple.. . .. ................... .. .. ... ... . ... .. .. .. .. ... .. .. ... .. ... ... .. . ...... Term expires 1919 CHARLES RoGAN, Vice Preszdenl, Austin...... ... .. .. .. . Term expires 1917 W . P. HoBBY, Beaumont... Secretary CHAS. A. FELKER, Chief Clerk J. H. RoGERS, Inspector W. H. WooD, Inspector T. H. WoLTERS, Inspector S. D. PEARCE, Inspector J. M. ScHAEDEL, Inspector W. M. WICKES, Inspector SUBSTATION NO. 1: Beeville, Bee County E. E .. BINFORD, B. S...

Fraps, G. S.

1915-01-01T23:59:59.000Z

195

Degradation of organic phosphorus compounds in anoxic Baltic Sea ...  

Science Journals Connector (OSTI)

Public Affairs · Join the Policy Action Network · Science Education · Science ... in anoxic Baltic Sea sediments: A 31P nuclear magnetic resonance study. Ahlgren ...

196

NMED COMMENTS ITEM 3 REVISE VOLATILE ORGANIC COMPOUND (VOC) TARGET...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

to the target list or not, according to proposed language in Permit Attachment N. If a TIC is determined to contribute more than one percent of the risk, then it will be added to...

197

Biodegradation of organic compounds in vadose zone and aquifer sediments.  

Science Journals Connector (OSTI)

...rotary head. Conventional, steam-cleaned, hollow-stem augers...phos- phorus, by using the ignition method (34); total nitrogen...mineral nitrogen, by using steam distillation (22); and exchangeable...substrates. This suggestion is based on the assumption that the affinities...

A Konopka; R Turco

1991-08-01T23:59:59.000Z

198

Nanoparticle Formation of Organic Compounds With Retained Biological Activity  

E-Print Network [OSTI]

of Pediatric, Radiology, Microbiology and Immunology, Stanford University School of Medicine, 318 Campus Drive

Zare, Richard N.

199

Three-Dimensional Simulation of Volatile Organic Compound Mass...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

simulations using data from the U.S. Department of Energy’s Hanford Site, where carbon tetrachloride is present in a low permeability zone about 30 m above the...

200

On The Importance of Organic Oxygen for Understanding Organic Aerosol  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

On The Importance of Organic Oxygen for Understanding Organic Aerosol On The Importance of Organic Oxygen for Understanding Organic Aerosol Particles Title On The Importance of Organic Oxygen for Understanding Organic Aerosol Particles Publication Type Journal Article Year of Publication 2006 Authors Pang, Yanbo, B. J. Turpin, and Lara A. Gundel Journal Journal of Aerosol Science and Technology Volume 40 Start Page Chapter Pagination 128-133 Abstract This study shows how aerosol organic oxygen data could provide new and independent information about organic aerosol mass, aqueous solubility of organic aerosols, formation of secondary organic aerosol (SOA) and the relative contributions of anthropogenic and biogenic sources. For more than two decades atmospheric aerosol organic mass concentration has usually been estimated by multiplying the measured carbon content by an assumed organic mass (OM)-to-organic carbon (OC ) factor of 1.4. However, this factor can vary from 1.0 to 2.5 depending on location. This great uncertainty about aerosol organic mass limits our understanding of the influence of organic aerosol on climate, visibility and health.New examination of organic aerosol speciation data shows that the oxygen content is the key factor responsible for the observed range in the OM-to-OC factor. When organic oxygen content is excluded, the ratio of non-oxygen organic mass to carbon mass varies very little across different environments (1.12 to 1.14). The non-oxygen-OM-to-non-oxygen OC factor for all studied sites (urban and non-urban) is 1.13± 0.02. The uncertainty becomes an order of magnitude smaller than the uncertainty in the best current estimates of organic mass to organic carbon ratios (1.6± 0.2 for urban and 2.1± 0.2 for non-urban areas). When aerosol organic oxygen data become available, organic aerosol mass can be quite accurately estimated using just OC and organic oxygen (OO) without the need to know whether the aerosol is fresh or aged. In addition, aerosol organic oxygen data will aid prediction of water solubility since compounds with OO-to-OC higher than 0.4 have water solubilities higher than 1g per 100 g water

Note: This page contains sample records for the topic "organic compounds tetraphenylborate" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

The design of new ligands and transition metal compounds for the oxidation of organic compounds  

E-Print Network [OSTI]

..................................... 2 1.3 Epoxidation of ?,?-unsaturated carboxylic acids with catalytic sodium tungstate and hydrogen peroxide ........................................ 3 1.4 The Sharpless asymmetric epoxidation reaction.............................. 4 1.5... as Jacobsen?s catalyst 1-3 but generally only olefins with cis geometry or trisubstituted olefins are epoxidized in high ee. 6 Scheme 1.5. Salen ligands A crystallographic study of these catalysts provides valuable insight...

Grill, Joseph Michael

2009-06-02T23:59:59.000Z

202

Chemoprevention by Fruit Phenolic Compounds  

Science Journals Connector (OSTI)

This chapter summarizes available information on the chemopreventive effects of fruit phenolic compounds in various experimental systems. Emphasis is placed on the anticarcinogenic activity of these phenolics ...

Gary D. Stoner PhD; Bruce C. Casto ScD

2004-01-01T23:59:59.000Z

203

Characterization of the crude oil polar compound extract  

SciTech Connect (OSTI)

This research is designed to determine if there are any naturally occurring constituents in crude oils that can be chemically altered to bring about increased oil production. An extract containing only the polar organic compounds of the crude oil was obtained by using a modification of the ASTM-2007 procedure. Chemical characterization of the polar compounds were carried out using high pressure liquid chromatography (HPLC) and gas chromatography. The HPLC analyses indicated a range of polar organic compound content of 10 crude oils from 1.6% to 12.7%. Wettability determinations show that by adding a small amount of the polar fraction from a crude oil, to a mineral oil, a 40 to 111% change of wettability toward a more oil-wet system will occur, depending on the specific extract used.

Donaldson, E.C.; Crocker, M.E.

1980-10-01T23:59:59.000Z

204

Modeling Semivolatile Organic Aerosol Mass Emissions from  

E-Print Network [OSTI]

in diluted diesel and wood combustion exhaust are interpreted using a two-component absorptive with dilution of both wood smoke and diesel exhaust can be described by two lumped compounds in roughly equal. Introduction Sources of organic aerosol such as diesel engines and wood stoves emit semivolatile organic

Stanier, Charlie

205

Organic Photovoltaics  

Science Journals Connector (OSTI)

Satisfying the world's growing demand for energy is an urgent societal challenge. Organic photovoltaics holds promise as a cost-efficient and environmentally friendly solution.

Kippelen, Bernard

2007-01-01T23:59:59.000Z

206

 COMPOUND-SPECIFIC RADIOCARBON ANALYSES OF PHOSPHOLIPID FATTY ACIDS AND n -ALKANES IN OCEAN SEDIMENTS  

E-Print Network [OSTI]

Monica Basin surface sediment: a model based on compound-ACIDS AND n-ALKANES IN OCEAN SEDIMENTS Ellen R M Druffel 1 •organic matter in ocean sediments from the northeast Pacific

2010-01-01T23:59:59.000Z

207

Compound-Specific Radiocarbon Analyses of Phospholipid Fatty Acids and n-Alkanes in Ocean Sediments  

E-Print Network [OSTI]

Monica Basin surface sediment: a model based on compound-ACIDS AND n-ALKANES IN OCEAN SEDIMENTS Ellen R M Druffel 1 •organic matter in ocean sediments from the northeast Pacific

2010-01-01T23:59:59.000Z

208

Initial-phase optimization for bioremediation of munition compound-contaminated soils.  

Science Journals Connector (OSTI)

...for the first stage of remediation was between 6.5 and...of the first stage of remediation of munition compound-contaminated...bioremediation explosives ground water herbicides Oregon organic...pollutants pollution remediation soil treatment soils...

S B Funk; D J Roberts; D L Crawford; R L Crawford

1993-07-01T23:59:59.000Z

209

E-Print Network 3.0 - americium compounds Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

the Pajarito Canyon Watershed LA-UR-10-1362 1 March 2010 Summary: organic compounds, dioxins, and furans should be added to the analytical suite for each sample (NMED 2009... in...

210

E-Print Network 3.0 - antimony compounds Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

the Pajarito Canyon Watershed LA-UR-10-1362 1 March 2010 Summary: organic compounds, dioxins, and furans should be added to the analytical suite for each sample (NMED 2009......

211

Polishing compound for plastic surfaces  

DOE Patents [OSTI]

A polishing compound for plastic surfaces. The compound contains by weight approximately 4 to 17 parts at least one petroleum distillate lubricant, 1 to 6 parts mineral spirits, 2.5 to 15 parts abrasive particles, and 2.5 to 10 parts water. The abrasive is tripoli or a similar material that contains fine particles silica. Preferably, most of the abrasive particles are less than approximately 10 microns, more preferably less than approximately 5 microns in size. The compound is used on PLEXIGLAS.TM., LEXAN.TM., LUCITE.TM., polyvinyl chloride (PVC) and similar plastic materials whenever a smooth, clear polished surface is desired.

Stowell, Michael S. (New Ellenton, SC)

1995-01-01T23:59:59.000Z

212

Polishing compound for plastic surfaces  

DOE Patents [OSTI]

A polishing compound for plastic surfaces is disclosed. The compound contains by weight approximately 4 to 17 parts at least one petroleum distillate lubricant, 1 to 6 parts mineral spirits, 2.5 to 15 parts abrasive particles, and 2.5 to 10 parts water. The abrasive is tripoli or a similar material that contains fine particles silica. Preferably, most of the abrasive particles are less than approximately 10 microns, more preferably less than approximately 5 microns in size. The compound is used on PLEXIGLAS{trademark}, LEXAN{trademark}, LUCITE{trademark}, polyvinyl chloride (PVC) and similar plastic materials whenever a smooth, clear polished surface is desired. 5 figs.

Stowell, M.S.

1995-08-22T23:59:59.000Z

213

Polishing compound for plastic surfaces  

DOE Patents [OSTI]

A polishing compound for plastic surfaces is disclosed. The compound contains by weight approximately 4 to 17 parts at least one petroleum distillate lubricant, 1 to 6 parts mineral spirits, 2.5 to 15 parts abrasive particles, and 2.5 to 10 parts water. The abrasive is tripoli or a similar material that contains colloidal silica. Preferably, most of the abrasive particles are less than approximately 10 microns, more preferably less than approximately 5 microns in size. The compound is used on PLEXIGLAS{sup TM}, LEXAN{sup TM}, LUCITE{sup TM}, polyvinyl chloride (PVC) and similar plastic materials whenever a smooth, clear polished surface is desired.

Stowell, M.S.

1993-01-01T23:59:59.000Z

214

Crystallographic properties of fertilizer compounds  

SciTech Connect (OSTI)

This bulletin is a compilation of crystallographic data collected at NFERC on 450 fertilizer-related compounds. In TVA's fertilizer R and D program, petrographic examination, XRD, and infrared spectroscopy are combined with conventional chemical analysis methods in identifying the individual compounds that occur in fertilizer materials. This handbook brings together the results of these characterization studies and supplemental crystallographic data from the literature. It is in one-compound-per-page, loose-leaf format, ordered alphabetically by IUPAC name. Indexes provided include IUPAC name, formula, group, alternate formula, synonyms, x-ray data, optical data. Tables are given for solids, compounds in commercial MAP and DAP, and matrix materials in phosphate rock.

Frazier, A.W.; Dillard, E.F.; Thrasher, R.D.; Waerstad, K.R.; Hunter, S.R.; Kohler, J.J.; Scheib, R.M.

1991-02-01T23:59:59.000Z

215

Polishing compound for plastic surfaces  

DOE Patents [OSTI]

This invention is comprised of a polishing compound for plastic materials. The compound includes approximately by approximately by weight 25 to 80 parts at least one petroleum distillate lubricant, 1 to 12 parts mineral spirits, 50 to 155 parts abrasive paste, and 15 to 60 parts water. Preferably, the compound includes approximately 37 to 42 parts at least one petroleum distillate lubricant, up to 8 parts mineral spirits, 95 to 110 parts abrasive paste, and 50 to 55 parts water. The proportions of the ingredients are varied in accordance with the particular application. The compound is used on PLEXIGLAS{trademark}, LEXAN{trademark}, LUCITE{trademark}, polyvinyl chloride (PVC), and similar plastic materials whenever a smooth, clear polished surface is desired.

Stowell, M.S.

1991-01-01T23:59:59.000Z

216

Detection of chlorinated aromatic compounds  

DOE Patents [OSTI]

A method for making a composition for measuring the concentration of chloated aromatic compounds in aqueous fluids, and an optical probe for use with the method. The composition comprises a hydrophobic polymer matrix, preferably polyamide, with a fluorescent indicator uniformly dispersed therein. The indicator fluoresces in the presence of the chlorinated aromatic compounds with an intensity dependent on the concentration of these compounds in the fluid of interest, such as 8-amino-2-naphthalene sulfonate. The probe includes a hollow cylindrical housing that contains the composition in its distal end. The probe admits an aqueous fluid to the probe interior for exposure to the composition. An optical fiber transmits excitation light from a remote source to the composition while the indicator reacts with chlorinated aromatic compounds present in the fluid. The resulting fluorescence light signal is reflected to a second optical fiber that transmits the light to a spectrophotometer for analysis.

Ekechukwu, Amy A. (Augusta, GA)

1996-01-01T23:59:59.000Z

217

Method for digesting a nitro-bearing explosive compound  

DOE Patents [OSTI]

The present invention is a process wherein superoxide radicals from superoxide salt are used to break down the explosive compounds. The process has an excellent reaction rate for degrading explosives, and operates at ambient temperature and atmospheric pressure in aqueous or non-aqueous conditions. Because the superoxide molecules are small, much smaller than an enzyme molecule for example, they can penetrate the microstructure of plastic explosives faster. The superoxide salt generates reactive hydroxyl radicals, which can destroy other organic contaminants, if necessary, along with digesting the explosive nitro-bearing compound.

Shah, Manish M. (Richland, WA)

2000-01-01T23:59:59.000Z

218

Organic geochemistry and organic petrography  

SciTech Connect (OSTI)

The Vermillion Creek coals and shales contain dominantly humic organic matter originating from woody plant tissues except for one shale unit above the coals, which contains hydrogen-rich kerogen that is mostly remains of filamentous algae, of likely lacustrine origin. The coals have two unusual features - very low inertinite content and high sulfur content compared to mined western coals. However, neither of these features points to the limnic setting reported for the Vermillion Creek sequence. The vitrinite reflectance of Vermillion Creek shales is markedly lower than that of the coals and is inversely proportional to the H/C ratio of the shales. Rock-Eval pyrolysis results, analyses of H, C, and N, petrographic observations, isotope composition of organic carbon, and amounts and compositions of the CHCl/sub 3/-extractable organic matter all suggest mixtures of two types of organic matter in the Vermillion Creek coals and clay shales: (1) isotopically heavy, hydrogen-deficient, terrestrial organic matter, as was found in the coals, and (2) isotopically light, hydrogen-rich organic matter similar to that found in one of the clay-shale samples. The different compositions of the Vermillion Creek coal, the unnamed Williams Fork Formation coals, and coals from the Middle Pennsylvanian Marmaton and Cherokee Groups are apparently caused by differences in original plant composition, alteration of organic matter related to different pH conditions of the peat swamps, and slightly different organic maturation levels.

Bostick, N.H.; Hatch, J.R.; Daws, T.A.; Love, A.H.; Lubeck, S.C.M.; Threlkeld, C.N.

1987-01-01T23:59:59.000Z

219

Nitroaromatic Compounds, from Synthesis to Biodegradation  

Science Journals Connector (OSTI)

...compounds that enter the TCA cycle. Interestingly, expression...and then converted to TCA cycle compounds, with salicylate...nitroaromatic compounds, but several fundamental aspects regarding their biosynthesis...Explosives development and fundamentals of explosives technology...

Kou-San Ju; Rebecca E. Parales

2010-06-01T23:59:59.000Z

220

ARM - Measurement - Organic Carbon Concentration  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

govMeasurementsOrganic Carbon Concentration govMeasurementsOrganic Carbon Concentration ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Organic Carbon Concentration The concentration of carbon bound in organic compounds. Categories Aerosols Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes. ARM Instruments ACSM : Aerosol Chemical Speciation Monitor Field Campaign Instruments AEROSCARBON : Aerosol Carbon Analyzer AEROSMASSSPEC : Aerosol Mass Spectrometer Datastreams AOS : Aerosol Observing System Datastreams

Note: This page contains sample records for the topic "organic compounds tetraphenylborate" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Method of digesting an explosive nitro compound  

DOE Patents [OSTI]

The present invention is a process wherein bleaching oxidants are used to digest explosive nitro compounds. The process has an excellent reaction rate for digesting explosives and operates under multivariate conditions. Reaction solutions may be aqueous, non-aqueous or a combination thereof, and can also be any pH, but preferably have a pH between 2 and 9. The temperature may be ambient as well as any temperature above which freezing of the solution would occur and below which any degradation of the bleaching oxidant would occur or below which any explosive reaction would be initiated. The pressure may be any pressure, but is preferably ambient or atmospheric, or a pressure above a vapor pressure of the aqueous solution to avoid boiling of the solution. Because the bleaching oxidant molecules are small, much smaller than an enzyme molecule for example, they can penetrate the microstructure of plastic explosives faster. The bleaching oxidants generate reactive hydroxyl radicals, which can destroy other organic contaminants, if necessary, along with digesting the explosive nitro compound.

Shah, Manish M. (Richland, WA)

2000-01-01T23:59:59.000Z

222

compound queries | OpenEI Community  

Open Energy Info (EERE)

Jweers's picture Submitted by Jweers(83) Contributor 16 May, 2013 - 14:22 Multicolor Maps from Compound Queries ask queries compound queries developer Google maps maps...

223

Electric Turbo Compounding Technology Update | Department of...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Compounding Technology Update Electric Turbo Compounding Technology Update Poster presentation at the 2007 Diesel Engine-Efficiency & Emissions Research Conference (DEER 2007)....

224

Novel Phosphazene Compounds for Enhancing Electrolyte Stability...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Phosphazene Compounds for Enhancing Electrolyte Stability and Safety of Lithium-ion Cells Novel Phosphazene Compounds for Enhancing Electrolyte Stability and Safety of Lithium-ion...

225

Novel Phosphazene Compounds for Enhancing Electrolyte Stability...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Novel Phosphazene Compounds for Enhancing Electrolyte Stability and Safety of Lithium-ion Cells Novel Phosphazene Compounds for Enhancing Electrolyte Stability and Safety of...

226

Intermediate-Volatility Organic Compounds: A Large Source of Secondary Organic Aerosol  

Science Journals Connector (OSTI)

Schauer, J. J.; Kleeman, M. J.; Cass, G. R.; Simoneit, B. R. T.Measurement of emissions from air pollution sources. ... Measurement of Emissions from Air Pollution Sources. ... Schauer, J. J.; Kleeman, M. J.; Cass, G. R.; Simoneit, B. R. T.Measurement of emissions from air pollution sources. ...

Yunliang Zhao; Christopher J. Hennigan; Andrew A. May; Daniel S. Tkacik; Joost A. de Gouw; Jessica B. Gilman; William C. Kuster; Agnes Borbon; Allen L. Robinson

2014-11-06T23:59:59.000Z

227

Supporting Information:1 Contributions of individual reactive biogenic volatile organic compounds to organic2  

E-Print Network [OSTI]

System Laboratory, National Center for22 Atmospheric Research, Boulder, CO USA23 Now at: Air Pollution 8 Université Lille Nord de France, Lille, France16 9 �cole des Mines de Douai, Douai, France17 10

Meskhidze, Nicholas

228

Polybenzimidazole compounds, polymeric media, and methods of post-polymerization modifications  

DOE Patents [OSTI]

A PBI compound includes imidazole nitrogens at least a portion of which are substituted with an organic-inorganic hybrid moiety. At least 85% of the imidazole nitrogens may be substituted. The organic-inorganic hybrid moiety may be an organosilane moiety, for example, (R)Me.sub.2SiCH.sub.2-- where R is selected from among methyl, phenyl, vinyl, and allyl. The PBI compound may exhibit similar thermal properties in comparison to the unsubstituted PBI. The PBI compound may exhibit a solubility in an organic solvent greater than the solubility of the unsubstituted PBI. The PBI compound may be included in separatory media. A substituted PBI synthesis method may include providing a parent PBI in a less than 5 wt % solvent solution. Substituting may occur at about room temperature and/or at about atmospheric pressure. Substituting may use at least 5 equivalents in relation to the imidazole nitrogens to be substituted or, preferably, about 15.

Klaehn, John R. (Idaho Falls, ID); Peterson, Eric S. (Idaho Falls, ID); Wertsching, Alan K. (Idaho Falls, ID); Orme, Christopher J. (Shelley, ID); Luther, Thomas A. (Idaho Falls, ID); Jones, Michael G. (Pocatello, ID)

2007-08-21T23:59:59.000Z

229

Organic Tanks Safety Program: Waste aging studies  

SciTech Connect (OSTI)

The underground storage tanks at the Hanford Complex contain wastes generated from many years of plutonium production and recovery processes, and mixed wastes from radiological degradation processes. The chemical changes of the organic materials used in the extraction processes have a direct on several specific safety issues, including potential energy releases from these tanks. This report details the first year`s findings of a study charged with determining how thermal and radiological processes may change the composition of organic compounds disposed to the tank. Their approach relies on literature precedent, experiments with simulated waste, and studies of model reactions. During the past year, efforts have focused on the global reaction kinetics of a simulated waste exposed to {gamma} radiation, the reactions of organic radicals with nitrite ion, and the decomposition reactions of nitro compounds. In experiments with an organic tank non-radioactive simulant, the authors found that gas production is predominantly radiolytically induced. Concurrent with gas generation they observe the disappearance of EDTA, TBP, DBP and hexone. In the absence of radiolysis, the TBP readily saponifies in the basic medium, but decomposition of the other compounds required radiolysis. Key organic intermediates in the model are C-N bonded compounds such as oximes. As discussed in the report, oximes and nitro compounds decompose in strong base to yield aldehydes, ketones and carboxylic acids (from nitriles). Certain aldehydes can react in the absence of radiolysis to form H{sub 2}. Thus, if the pathways are correct, then organic compounds reacting via these pathways are oxidizing to lower energy content. 75 refs.

Camaioni, D.M.; Samuels, W.D.; Lenihan, B.D.; Clauss, S.A.; Wahl, K.L.; Campbell, J.A.

1994-11-01T23:59:59.000Z

230

Organic materials with nonlinear optical properties  

DOE Patents [OSTI]

The present invention is directed to organic materials that have the ability to double or triple the frequency of light that is directed through the materials. Particularly, the present invention is directed to the compound 4-[4-(2R)-2-cyano-7-(4{prime}-pentyloxy-4-biphenylcarbonyloxy)phenylheptylidenephenylcarbonyloxy]benzaldehyde, which can double the frequency of light that is directed through the compound. The invention is also directed to the compound (12-hydroxy-5,7-dodecadiynyl)-4{prime}-[(4{prime}-pentyloxy-4-biphenyl)carbonyloxy]-4-biphenylcarboxylate, and its polymeric form. The polymeric form can triple the frequency of light directed through it. 4 figs.

Stupp, S.I.; Son, S.; Lin, H.C.

1995-05-02T23:59:59.000Z

231

The Phosphorus Compounds of Cotton Seed Meal and Wheat Bran.  

E-Print Network [OSTI]

. Phar. & Expt. Therapeutics 1,151) claims that ? the chief poisonous principle of cottonseed meal is a salt of pyrophos- phoric acid.? It has been shown by the writer (Bulletin 146) that the product which these writers thought was inorganic... compound as phytin, but do not report complete analyses of the product. Levine (Biochem. Ztscher. 16, 390) describes a semicrystalline barium salt of an organic phosphorus acid. Yorbrodt (Anzeiger. Akad. Wiss. Krakau, 1910. Series A. 414) separated...

Rather, J. B. (James Burness)

1913-01-01T23:59:59.000Z

232

E-Print Network 3.0 - atomic energy organization Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

6. A common trait of simple organic compounds is to have Lewis... in a certain organic molecule absorbs radiation that has a frequency of 6.0 x 1013 s1. a. What... is the...

233

Liquefaction of cellulosic wastes. 6: Oxygen compounds in pyrolytic oil and water fractions  

SciTech Connect (OSTI)

Liquid hydrocarbon oil and water have been produced from the liquefaction of cellulosic matter present in municipal solid wastes. The produced pyrolytic oil and water fraction seemed to be contaminated with considerable amounts of oxygen compounds as compared with fuels derived from a petroleum origin. The oxygen compounds included organic acids (fatty and naphthenic acids), phenols, and carbonyl compounds. These classes of oxygen compounds were extracted selectively from the pyrolytic oils and water using chemical extraction methods. Methyl esters of fatty acids and 2,4-dinitrophenylhydrazones of carbonyl compounds were identified by gas chromatography and thin layer chromatography, respectively. It was suggested that the identified oxygen compounds could be produced from the pyrolysis of volatiles (e.g., levoglucosane, which is the primary product of cellulose depolymerization) via different mechanistic pathways.

Gharieb, H.K.; Faramawy, S.; El-Amrousi, F.A.; El-Sabagh, S.M. [Egyptian Petroleum Research Inst., Cairo (Egypt)

1998-07-01T23:59:59.000Z

234

Volatile compounds from marine algae  

Science Journals Connector (OSTI)

Volatile compounds from marine algae ... Seasonal Variations of Bromophenols in Brown Algae (Padina arborescens, Sargassum siliquastrum, and Lobophora variegata) Collected in Hong Kong ... Seasonal Variations of Bromophenols in Brown Algae (Padina arborescens, Sargassum siliquastrum, and Lobophora variegata) Collected in Hong Kong ...

Richard E. Moore

1977-02-01T23:59:59.000Z

235

In Vitro Genotoxicity of Particulate and Semi-Volatile Organic...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Particulate and Semi-Volatile Organic Compound Exhaust Materails from a Set of Gasoline and a Set of Diesel Engine Vehicles Operated at 30F In Vitro Genotoxicity of Particulate...

236

Handbook of GC/MS data and information for selected Clean Air Act amendments compounds. Report for January 1992-December 1993  

SciTech Connect (OSTI)

This Handbook presents a compilation of the results of laboratory experiments to test the applicability of GC/MS techniques using EPA methods 8270 and 5041, and the compatibility of the Title III organic compounds with organic solvents. The Handbook contains the following information: (1) Compounds that can and cannot be analyzed; (2) Relative response factors; (3) Chromatograms, reference mass spectra; and (4) Evaluation of compound compatibility for semivolatile organic compounds in isolation. Data and information included in the Handbook are intended to address analytical issues only; sample collection issues are not addressed.

Rice, J.; Bursey, J.T.; McGaughey, J.F.; Merrill, R.G.; Harvan, D.J.

1994-03-01T23:59:59.000Z

237

On modeling the potential impacts of CO2 sequestration on shallow groundwater: Transport of organics and co-injected H2S by supercritical CO2 to shallow aquifers  

E-Print Network [OSTI]

solvent, and its use to decontaminate soils impacted by hazardous organic compounds is regarded as a “green”

Zheng, L.

2014-01-01T23:59:59.000Z

238

4, 227265, 2004 Effect of organic  

E-Print Network [OSTI]

and Physics Discussions Effect of organic compounds on nanoparticle formation in diluted diesel exhaust U. Introduction Exhaust from diesel engines represents an important anthropogenic source of particles in ambient Print Version Interactive Discussion © EGU 2004 Abstract The nucleation of nanoparticles in the exhaust

Paris-Sud XI, Université de

239

Organic chemical contaminants in Biosolids Sally Brown  

E-Print Network [OSTI]

under the general classification "dioxins." Dioxins are one of the well known dangerous organic chemicals. Dioxins had commercial uses, primarily in the pulp and paper industry, but have been outlawed due. There are many types of dioxins. "Dioxin" is actually a general term for a large number of compounds that contain

Brown, Sally

240

AEROBIC BIOTRANSFORMATION OF TOXIC ORGANICS IN WASTEWATER  

E-Print Network [OSTI]

#12;AEROBIC BIOTRANSFORMATION OF TOXIC ORGANICS IN WASTEWATER DOE FRAP 1997-15 Prepared for in both domestic and industrial wastewater. The release of these compounds during wastewater treatment to predict the mass of the VOCs in the wastewater treated by biotransformation and the mass stripped

Note: This page contains sample records for the topic "organic compounds tetraphenylborate" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Thermodynamic evaluation of the compounds of gold, silver, and other trace elements formed upon the combustion of brown coal  

Science Journals Connector (OSTI)

The thermodynamically most probable main compounds of Ag, Au, Ge, Se, Sr, U, and ash-forming elements formed upon the combustion of brown coal, which was close in the composition of organic and mineral matter ...

M. Ya. Shpirt; A. A. Lavrinenko; I. N. Kuznetsova…

2013-09-01T23:59:59.000Z

242

Muon-spin spectroscopy of the organometallic spin-1/2 kagome-lattice compound Cu(1,3-benzenedicarboxylate)  

E-Print Network [OSTI]

Using muon-spin resonance, we examine the organometallic hybrid compound Cu(1,3-benzenedicarboxylate) [Cu(1,3-bdc)], which has structurally perfect spin-1/2 copper kagome planes separated by pure organic linkers. This ...

Marcipar, Lital

243

Hyperpolarizable compounds and devices fabricated therefrom  

DOE Patents [OSTI]

Substituted compounds having relatively large molecular first order hyperpolarizabilities are provided, along with devices and materials containing them. In general, the compounds bear electron-donating and electron-withdrawing chemical substituents on a polyheterocyclic core. 13 figs.

Therien, M.J.; DiMagno, S.G.

1998-07-21T23:59:59.000Z

244

Bibliography of work on the photocatalytic removal of hazardous compounds from water and air  

SciTech Connect (OSTI)

This is a bibliography of information in the open literature on work that has been done to date on the photocatalytic oxidation of compounds, principally organic compounds. The goal of the listing is removing hazardous oompounds from water or air. It contains lists of substances and literature citations. The bibliography includes information obtained through the middle of 1993 and some selected references for the balance of that year.

Blake, D.M.

1994-05-01T23:59:59.000Z

245

Organic tanks safety program FY95 waste aging studies  

SciTech Connect (OSTI)

This report gives the second year`s findings of a study of how thermal and radiological processes may change the composition of organic compounds in the underground tanks at Hanford. Efforts were focused on the global reaction kinetics in a simulated waste exposed to {gamma} rays and the reactions of organic radicals with nitrite ion. The gas production is predominantly radiolytic. Decarboxylation of carboxylates is probably an aging pathway. TBP was totaly consumed in almost every run. Radiation clearly accelerated consumption of the other compounds. EDTA is more reactive than citrate. Oximes and possibly organic nitro compounds are key intermediates in the radiolytic redox reactions of organic compounds with nitrate/nitrite. Observations are consistent with organic compounds being progressively degraded to compounds with greater numbers of C-O bonds and fewer C-H and C-C bonds, resulting in an overall lower energy content. If the radwaste tanks are adequately ventilated and continually dosed by radioactivity, their total energy content should have declined. Level of risk depends on how rapidly carboxylate salts of moderate energy content (including EDTA fragments) degrade to low energy oxalate and formate.

Camaioni, D.M.; Samuels, W.D.; Clauss, S.A.; Lenihan, B.D.; Wahl, K.L.; Campbell, J.A.; Shaw, W.J.

1995-09-01T23:59:59.000Z

246

Gas Separation Using Organic-Vapor-Resistent Membranes In Conjunctin With Organic-Vapor-Selective Membranes  

DOE Patents [OSTI]

A process for treating a gas mixture containing at least an organic compound gas or vapor and a second gas, such as natural gas, refinery off-gas or air. The process uses two sequential membrane separation steps, one using membrane selective for the organic compound over the second gas, the other selective for the second gas over the organic vapor. The second-gas-selective membranes use a selective layer made from a polymer having repeating units of a fluorinated polymer, and demonstrate good resistance to plasticization by the organic components in the gas mixture under treatment, and good recovery after exposure to liquid aromatic hydrocarbons. The membrane steps can be combined in either order.

Baker, Richard W. (Palo Alto, CA); Pinnau, Ingo (Palo Alto, CA); He, Zhenjie (Fremont, CA); Da Costa, Andre R. (Menlo Park, CA); Daniels, Ramin (San Jose, CA); Amo, Karl D. (Mountain View, CA); Wijmans, Johannes G. (Menlo Park, CA)

2003-06-03T23:59:59.000Z

247

INSENSITIVE HIGH-NITROGEN COMPOUNDS  

SciTech Connect (OSTI)

The conventional approach to developing energetic molecules is to chemically place one or more nitro groups onto a carbon skeleton, which is why the term ''nitration'' is synonymous to explosives preparation. The nitro group carries the oxygen that reacts with the skeletal carbon and hydrogen fuels, which in turn produces the heat and gaseous reaction products necessary for driving an explosive shock. These nitro-containing energetic molecules typically have heats of formation near zero and therefore most of the released energy is derived from the combustion process. Our investigation of the tetrazine, furazan and tetrazole ring systems has offered a different approach to explosives development, where a significant amount of the chemical potential energy is derived from their large positive heats of formation. Because these compounds often contain a large percentage of nitrogen atoms, they are usually regarded as high-nitrogen fuels or explosives. A general artifact of these high-nitrogen compounds is that they are less sensitive to initiation (e.g. by impact) when compared to traditional nitro-containing explosives of similar performances. Using the precursor, 3,6-bis-(3,5-dimethylpyrazol-1-yl)-s-tetrazine, several useful energetic compounds based on the s-tetrazine system have been synthesized and studied. Some of the first compounds are 3,6-diamino-s-tetrazine-1,4-dioxide (LAX-112) and 3,6-dihydrazino-s-tetrazine (DHT). LAX-112 was once extensively studied as an insensitive explosive by Los Alamos; DHT is an example of a high-nitrogen explosive that relies entirely on its heat of formation for sustaining a detonation. Recent synthesis efforts have yielded an azo-s-tetrazine, 3,3'-azobis(6-amino-s-tetrazine) or DAAT, which has a very high positive heat of formation. The compounds, 4,4'-diamino-3,3'-azoxyfurazan (DAAF) and 4,4'-diamino-3,3'-azofurazan (DAAzF), may have important future roles in insensitive explosive applications. Neither DAAF nor DAAzF can be initiated by laboratory impact drop tests, yet both have in some aspects better explosive performances than 1,3,5-triamino-2,4,6-trinitrobenzene TATB--the standard of insensitive high explosives. The thermal stability of DAAzF is equal to that of hexanitrostilbene (HNS), yet it too is a better explosive performer. The recently discovered tetrazol derivative, 3,6-bis-(1H-1,2,3,4-tetrazol-5-ylamino)-s-tetrazine (BTATz) was measured to have exceptional positive heats of formation and to be insensitive to explosive initiation. Because of its high burn rate with low sensitivity to pressure, this material is of great interest to the propellant community.

D. CHAVEZ; ET AL

2001-03-01T23:59:59.000Z

248

Zirconia coating on stainless steel sheets from organozirconium compounds  

SciTech Connect (OSTI)

The stability and the coating characteristics of a variety of organozirconium compounds have been investigated to coat ZrO/sub 2/ films on stainless steel sheets for the improvement of heat resistance against oxidation. Zirconium tetraoctylate and zirconium tetrakis(acetylacetonate). The authors discuss how the compounds were found to be more stable than zirconium alkoxides in an ambient atmosphere. The ZrO/sub 2/ films from zirconium alkoxides became white and discontinuous when the thickness of the films exceeded about 200 A (20nm). On the other hand, transparent ZrO/sub 2/ films were obtained from zirconium tetraoctylate and zirconium tetrakis(acetylacetonate). The IR spectra of the films showed that the heat treatment at 400{sup 0}C for 5 min produced organic-free ZrO/sub 2/ films. The heat resistance of stainless steel sheets against oxidation was improved by the ZrO/sub 2/ coating, depending on the film thickness.

Izumi, K.; Murakami, M.; Deguchi, T.; Morita, A. (Nisshin Steel Co. Ltd., Tokyo (Japan)); Tohge, N.; Minami, T. (Dept. of Applied Chemistry, Univ. of Osaka Prefecture, Mozu-Umekmachi, Sakai-Shi, Osaka- Fu 591 (JP))

1989-08-01T23:59:59.000Z

249

Field Derived Emission Factors For Formaldehyde and other Volatile Organic  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Field Derived Emission Factors For Formaldehyde and other Volatile Organic Field Derived Emission Factors For Formaldehyde and other Volatile Organic Compounds in FEMA Temporary Housing Units Title Field Derived Emission Factors For Formaldehyde and other Volatile Organic Compounds in FEMA Temporary Housing Units Publication Type Report LBNL Report Number LBNL-4083E Year of Publication 2010 Authors Parthasarathy, Srinandini, Randy L. Maddalena, Marion L. Russell, and Michael G. Apte Publisher Lawrence Berkeley National Laboratory City Berkeley Abstract Sixteen previously occupied temporary housing units (THUs) were studied to assess emissions of volatile organic compounds. The whole trailer emission factors were evaluated for 36 VOCs including formaldehyde. Indoor sampling was carried out in the THUs located in Purvis staging yard in Mississippi, USA. Indoor temperature and relative humidity (RH) were also measured in all the trailers during sampling. Indoor temperatures were varied (increased or decreased) in a selection of THUs using the

250

Giant magnetoresistive cobalt oxide compounds  

DOE Patents [OSTI]

Methods and apparatus are disclosed for the preparation and use of a substrate having an array of diverse materials in predefined regions thereon. A substrate having an array of diverse materials thereon is generally prepared by delivering components of materials to predefined regions on a substrate, and simultaneously reacting the components to form at least two materials. Materials which can be prepared using the methods and apparatus of the present invention include, for example, covalent network solids, ionic solids and molecular solids. More particularly, materials which can be prepared using the methods and apparatus of the present invention include, for example, inorganic materials, intermetallic materials, metal alloys, ceramic materials, organic materials, organometallic materials, non-biological organic polymers, composite materials (e.g., inorganic composites, organic composites, or combinations thereof), etc. Once prepared, these materials can be screened for useful properties including, for example, electrical, thermal, mechanical, morphological, optical, magnetic, chemical, or other properties. Thus, the present invention provides methods for the parallel synthesis and analysis of novel materials having useful properties. 58 figs.

Schultz, P.G.; Xiang, X.; Goldwasser, I.

1998-07-07T23:59:59.000Z

251

Reading Comprehension - Dissecting and Compound Microscopes  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Dissecting and Compound Microscopes Two types of microscopes. _________ Dissecting and Compound Microscopes Two types of microscopes. _________ Dissecting Microscope Compound Microscope _________ eyepiece focus knob light light switch objective stage _________ eyepiece focus knob light light switch objective stage _________ eyepiece focus knob light light switch objective stage _________ eyepiece focus knob light light switch objective stage _________ eyepiece focus knob light light switch objective stage _________ eyepiece focus knob light light switch objective stage _________ Dissecting Microscope Compound Microscope _________ eyepieces focus knob light light switch objective stage _________ eyepieces focus knob light light switch objective stage _________ eyepieces focus knob light light switch objective stage _________ eyepieces focus knob light

252

Sandia National Labs: PCNSC: Research: Compound Semiconductor...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

and chemistry foundations to advance the state-of-the-art compound semiconductor optoelectronic materials and devices. Our approach is based on a focused effort including...

253

Organic solvent alteration of hydraulic properties of sedimentary rocks of low permeability: a review  

SciTech Connect (OSTI)

A review of the current literature on hydrophysical interactions of organic solutes with sedimentary rocks of low permeability is presented. The motivation was the premise that low permeability rocks may act as secondary (aquifer) barriers for the containment of hazardous organic wastes, thus preventing these wastes from contaminating the groundwater. However, this premise may be incorrect if organic wastes can affect the hydraulic conductivity of these rocks. The results indicate that very little work has been done concerning interactions of organics with consolidated subsurface materials. Available information on three related topics was summarized: the effect of organic compounds on the hydrophysical properties of clays, case studies concerning the interactions of organic compounds with clays and sedimentary rocks, and the effect of shales on inorganic transport. These studies give an indication of some research areas that need to be explored with regard to the effect of organic compounds on the hydrophysical properties of sedimentary rocks; these research needs are briefly summarized. 42 refs.

Sklarew, D.S.

1985-05-01T23:59:59.000Z

254

Compound cryopump for fusion reactors  

E-Print Network [OSTI]

We reconsider an old idea: a three-stage compound cryopump for use in fusion reactors such as DEMO. The helium "ash" is adsorbed on a 4.5 K charcoal-coated surface, while deuterium and tritium are adsorbed at 15-22 K on a second charcoal-coated surface. The helium is released by raising the first surface to ~30 K. In a separate regeneration step, deuterium and tritium are released at ~110 K. In this way, the helium can be pre-separated from other species. In the simplest design, all three stages are in the same vessel, with a single valve to close the pump off from the tokamak during regeneration. In an alternative design, the three stages are in separate vessels, connected by valves, allowing the stages to regenerate without interfering with each other. The inclusion of the intermediate stage would not affect the overall pumping speed significantly. The downstream exhaust processing system could be scaled down, as much of the deuterium and tritium could be returned directly to the reactor. This could reduce ...

Kovari, M; Shephard, T

2013-01-01T23:59:59.000Z

255

Publications Daniel Kost 1. D. Kost, "Principles of Organic Chemistry" a study unit textbook. Open University, Tel Aviv,  

E-Print Network [OSTI]

- 1 - Publications Daniel Kost (A) Books 1. D. Kost, "Principles of Organic Chemistry" a study unit, "Hypervalent Silicon Compounds", Invited chapter in "The Chemistry of Organic Silicon Compounds", Z. Rappoport and Chiroptical Properties", Invited chapter in "The Chemistry of Sulfenic Acids and Their Derivatives", S. Patai

Vardi, Amichay

256

ORGANIC CHEMISTRY UCLA Organic Chemistry Faculty  

E-Print Network [OSTI]

ORGANIC CHEMISTRY UCLA Organic Chemistry Faculty perform research in molecular machines, exotic CHEMISTRY FACULTY RESEARCH INTERESTS Anne M. Andrews, Professor-in-Residence: Understanding how areas of interest include cross- coupling reactions, green chemistry, heterocycle synthesis, and natural

Levine, Alex J.

257

Research Article Decomposition of Epoxy Model Compounds  

E-Print Network [OSTI]

-critical water (NCW) or subcritical water, i.e., water at 250­300 °C [20], turn out to be alternative candidatesResearch Article Decomposition of Epoxy Model Compounds in Near-Critical Water Two tpyes of epoxy water (NCW). In the case of model compound I, at low temperatures the water molecules behave

Guo, John Zhanhu

258

Sorption of organic gases in residential rooms  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

residential rooms residential rooms Title Sorption of organic gases in residential rooms Publication Type Journal Article LBNL Report Number LBNL-59303 Year of Publication 2007 Authors Singer, Brett C., Alfred T. Hodgson, Toshifumi Hotchi, Katherine Y. Ming, Richard G. Sextro, Emily E. Wood, and Nancy J. Brown Journal Atmospheric Environment Volume 41 Start Page Chapter Pagination 3251-3265 Keywords adsorption, hazardous air pollutants, nerve agents, sink effect, volatile organic compounds Abstract Experiments were conducted to characterize organic gas sorption in residential rooms studied ''as-is'' with furnishings and material surfaces unaltered and in a furnished chamber designed to simulate a residential room. Results are presented for 10 rooms (five bedrooms, two bathrooms, a home office, and two multi-function spaces) and the chamber. Exposed materials were characterized and areas quantified. A mixture of volatile organic compounds (VOCs) was rapidly volatilized within each room as it was closed and sealed for a 5-h Adsorb phase; this was followed by 30-min Flush and 2-h closed-room Desorb phases. Included were alkane, aromatic, and oxygenated VOCs representing a range of ambient and indoor air pollutants. Three organophosphorus compounds served as surrogates for Sarin-like nerve agents. Measured gas-phase concentrations were fit to three variations of a mathematical model that considers sorption occurring at a surface sink and potentially a second, embedded sink. The 3-parameter sink-diffusion model provided acceptable fits for most compounds and the 4-parameter two-sink model provided acceptable fits for the others. Initial adsorption rates and sorptive partitioning increased with decreasing vapor pressure for the alkanes, aromatics and oxygenated VOCs. Best-fit sorption parameters obtained from experimental data from the chamber produced best-fit sorption parameters similar to those obtained from the residential rooms

259

Mechanistic and kinetic evaluation of organic disinfection by-product and assimilable organic carbon (AOC) formation during the ozonation of drinking water  

Science Journals Connector (OSTI)

Ozonation of drinking water results in the formation of low molecular weight (LMW) organic by-products. These compounds are easily utilisable by microorganisms and can result in biological instability of the water. In this study, we have combined a novel bioassay for assessment of assimilable organic carbon (AOC) with the detection of selected organic acids, aldehydes and ketones to study organic by-product formation during ozonation. We have investigated the kinetic evolution of LMW compounds as a function of ozone exposure. A substantial fraction of the organic compounds formed immediately upon exposure to ozone and organic acids comprised 60–80% of the newly formed AOC. Based on experiments performed with and without hydroxyl radical scavengers, we concluded that direct ozone reactions were mainly responsible for the formation of small organic compounds. It was also demonstrated that the laboratory-scale experiments are adequate models to describe the formation of LMW organic compounds during ozonation in full-scale treatment of surface water. Thus, the kinetic and mechanistic information gained during the laboratory-scale experiments can be utilised for upscaling to full-scale water treatment plants.

Frederik Hammes; Elisabeth Salhi; Oliver Köster; Hans-Peter Kaiser; Thomas Egli; Urs von Gunten

2006-01-01T23:59:59.000Z

260

The Organic Rankine Cycle  

Science Journals Connector (OSTI)

Chap. 3 is dedicated to Rankine cycles with organic fluids: the so-called organic Rankine cycles (ORC), which in recent years have ... of the use of...

Costante Mario Invernizzi

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "organic compounds tetraphenylborate" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Organization | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Organization Organization The Office of Economic Impact and Diversity is comprised of: The Office of the Director- contact us Office of Minority Business and Economic Development -...

262

Separation and Identification of Volatile Compounds from Liquid Cultures of Trichoderma harzianum by GC-MS using Three Different Capillary Columns  

Science Journals Connector (OSTI)

......functions in the organism that are of remarkable importance to humankind in medical, industrial or agricultural applications. Some...activities. Volatile compounds are appear as intermediate and end products of diverse metabolic pathways and belong to various......

Shafiquzzaman Siddiquee; Bo Eng Cheong; Khanam Taslima; Hossain Kausar; Md Mainul Hasan

2012-04-01T23:59:59.000Z

263

Multiferroic Metal Organic Frameworks  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

with the oxygen of the framework. Upon cooling the compounds go under a phase transition, due to the ordering of nitrogen, leading to ferroelectric ordering. They also order...

264

Towards Heavy Fermions in Europium Intermetallic Compounds  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Towards Heavy Fermions in Europium Intermetallic Compounds Print Towards Heavy Fermions in Europium Intermetallic Compounds Print For decades, intermetallic compounds of rare-earth metals have been favorite systems of the research community studying strong electron correlations in solids. Nowadays rare-earth intermetallics are often treated as model systems for studies of zero-temperature quantum critical phase transitions, since heavy-fermion rare-earth compounds (in which the electron effective mass is orders of magnitude larger than the bare electron mass) have provided the clearest evidence for these continuous phase transitions, which are controlled by such parameters as chemical composition, magnetic field, and pressure, rather than temperature. A new study of a europium-based compound by an international team led by researchers from the Technische Universität Dresden in Germany hints that this compound could join well-known compounds of cerium, ytterbium, and uranium as a new material suitable for research on quantum critical transitions. This finding is exciting, since physicists hope that the use of a new material will give an additional degree of freedom for researching quantum critical behavior.

265

Towards Heavy Fermions in Europium Intermetallic Compounds  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Towards Heavy Fermions in Towards Heavy Fermions in Europium Intermetallic Compounds Towards Heavy Fermions in Europium Intermetallic Compounds Print Wednesday, 29 July 2009 00:00 For decades, intermetallic compounds of rare-earth metals have been favorite systems of the research community studying strong electron correlations in solids. Nowadays rare-earth intermetallics are often treated as model systems for studies of zero-temperature quantum critical phase transitions, since heavy-fermion rare-earth compounds (in which the electron effective mass is orders of magnitude larger than the bare electron mass) have provided the clearest evidence for these continuous phase transitions, which are controlled by such parameters as chemical composition, magnetic field, and pressure, rather than temperature. A new study of a europium-based compound by an international team led by researchers from the Technische Universität Dresden in Germany hints that this compound could join well-known compounds of cerium, ytterbium, and uranium as a new material suitable for research on quantum critical transitions. This finding is exciting, since physicists hope that the use of a new material will give an additional degree of freedom for researching quantum critical behavior.

266

Towards Heavy Fermions in Europium Intermetallic Compounds  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Towards Heavy Fermions in Europium Intermetallic Compounds Print Towards Heavy Fermions in Europium Intermetallic Compounds Print For decades, intermetallic compounds of rare-earth metals have been favorite systems of the research community studying strong electron correlations in solids. Nowadays rare-earth intermetallics are often treated as model systems for studies of zero-temperature quantum critical phase transitions, since heavy-fermion rare-earth compounds (in which the electron effective mass is orders of magnitude larger than the bare electron mass) have provided the clearest evidence for these continuous phase transitions, which are controlled by such parameters as chemical composition, magnetic field, and pressure, rather than temperature. A new study of a europium-based compound by an international team led by researchers from the Technische Universität Dresden in Germany hints that this compound could join well-known compounds of cerium, ytterbium, and uranium as a new material suitable for research on quantum critical transitions. This finding is exciting, since physicists hope that the use of a new material will give an additional degree of freedom for researching quantum critical behavior.

267

Towards Heavy Fermions in Europium Intermetallic Compounds  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Towards Heavy Fermions in Europium Intermetallic Compounds Print Towards Heavy Fermions in Europium Intermetallic Compounds Print For decades, intermetallic compounds of rare-earth metals have been favorite systems of the research community studying strong electron correlations in solids. Nowadays rare-earth intermetallics are often treated as model systems for studies of zero-temperature quantum critical phase transitions, since heavy-fermion rare-earth compounds (in which the electron effective mass is orders of magnitude larger than the bare electron mass) have provided the clearest evidence for these continuous phase transitions, which are controlled by such parameters as chemical composition, magnetic field, and pressure, rather than temperature. A new study of a europium-based compound by an international team led by researchers from the Technische Universität Dresden in Germany hints that this compound could join well-known compounds of cerium, ytterbium, and uranium as a new material suitable for research on quantum critical transitions. This finding is exciting, since physicists hope that the use of a new material will give an additional degree of freedom for researching quantum critical behavior.

268

Towards Heavy Fermions in Europium Intermetallic Compounds  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Towards Heavy Fermions in Europium Intermetallic Compounds Print Towards Heavy Fermions in Europium Intermetallic Compounds Print For decades, intermetallic compounds of rare-earth metals have been favorite systems of the research community studying strong electron correlations in solids. Nowadays rare-earth intermetallics are often treated as model systems for studies of zero-temperature quantum critical phase transitions, since heavy-fermion rare-earth compounds (in which the electron effective mass is orders of magnitude larger than the bare electron mass) have provided the clearest evidence for these continuous phase transitions, which are controlled by such parameters as chemical composition, magnetic field, and pressure, rather than temperature. A new study of a europium-based compound by an international team led by researchers from the Technische Universität Dresden in Germany hints that this compound could join well-known compounds of cerium, ytterbium, and uranium as a new material suitable for research on quantum critical transitions. This finding is exciting, since physicists hope that the use of a new material will give an additional degree of freedom for researching quantum critical behavior.

269

Towards Heavy Fermions in Europium Intermetallic Compounds  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Towards Heavy Fermions in Europium Intermetallic Compounds Print Towards Heavy Fermions in Europium Intermetallic Compounds Print For decades, intermetallic compounds of rare-earth metals have been favorite systems of the research community studying strong electron correlations in solids. Nowadays rare-earth intermetallics are often treated as model systems for studies of zero-temperature quantum critical phase transitions, since heavy-fermion rare-earth compounds (in which the electron effective mass is orders of magnitude larger than the bare electron mass) have provided the clearest evidence for these continuous phase transitions, which are controlled by such parameters as chemical composition, magnetic field, and pressure, rather than temperature. A new study of a europium-based compound by an international team led by researchers from the Technische Universität Dresden in Germany hints that this compound could join well-known compounds of cerium, ytterbium, and uranium as a new material suitable for research on quantum critical transitions. This finding is exciting, since physicists hope that the use of a new material will give an additional degree of freedom for researching quantum critical behavior.

270

NETL: Ambient Monitoring - Contribution of Semi-volatile Organic Material  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Semi-volatile Organics in PM Semi-volatile Organics in PM This project is a cooperative effort between Brigham Young University (BYU) and researchers from the DOE-NETL Office of Science and and Engineering Research to determine the contribution of semi-volatile particulate organic compounds (SVOC) to total ambient suspended fine particulate mass at the NETL-Pittsburgh air monitoring facility. Project funding comes from DOE‘s University Coal Research (UCR) program. The hypothesis of the project is that fine particulate mass will be significantly under-determined in urban environments using single filter samplers such as the PM2.5 Federal Reference Method (FRM) because of the loss of semi-volatile organic compounds (SVOC) from the particles during sampling and storage. It is postulated that fine particulate mass, including the semi-volatile fine particulate organic species, are an appropriate surrogate for the components of fine particles which are associated with observed mortality and morbidity effects in epidemiological studies. Further, it is postulated that the most important fraction of the semi-volatile organic material with respect to exacerbation of health problems will be semi-volatile secondary compounds formed from reactions of volatile organic material with ozone and nitrogen oxides. Under-determination of these semi-volatile species will tend to over emphasize the importance of non-volatile fine particulate components such as sulfate or may reduce the significance of correlations with measured health effects.

271

Transportation Organization and Functions  

Broader source: Energy.gov [DOE]

Office of Packaging and Transportation list of organizations and functions, with a list of acronyms.

272

ORGANIC CONTENT OF LAKE WATER By EDWARD A. BIRGE and CHANCEY JUDAY  

E-Print Network [OSTI]

of the nature of the organic compounds. Thus it furnishes the beginnings of an inventory of the primary food was based Oil the same samples as those employed in the present paper; it is the source of the nitrogen

273

Variations in organic aerosol optical and hygroscopic properties upon heterogeneous OH oxidation  

E-Print Network [OSTI]

Measurements of the evolution of organic aerosol extinction cross sections (?[subscript ext]) and subsaturated hygroscopicity upon heterogeneous OH oxidation are reported for two model compounds, squalane (a C30 saturated ...

Cappa, Christopher D.

274

The Gut as an Osmoregulatory Organ: Comparative Aspects and Special References to Fishes  

Science Journals Connector (OSTI)

When considering the gut as an osmoregulatory organ, it must be kept in mind that the basic function of the gut is to split foodstuffs into simple compounds, small enough to cross cell membranes. The splitting...

R. Kirsch; W. Humbert; V. Simonneaux

1985-01-01T23:59:59.000Z

275

Compound and Elemental Analysis | Open Energy Information  

Open Energy Info (EERE)

Compound and Elemental Analysis Compound and Elemental Analysis Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Compound and Elemental Analysis Details Activities (104) Areas (69) Regions (6) NEPA(0) Exploration Technique Information Exploration Group: Lab Analysis Techniques Exploration Sub Group: Fluid Lab Analysis Parent Exploration Technique: Fluid Lab Analysis Information Provided by Technique Lithology: Stratigraphic/Structural: Hydrological: Results can aid in the determination of fluid source regions and circulation pathways. Thermal: Certain elements exhibit high spatial correlation with high-temperature geothermal systems. Cost Information Low-End Estimate (USD): 15.001,500 centUSD 0.015 kUSD 1.5e-5 MUSD 1.5e-8 TUSD / compound Median Estimate (USD): 30.003,000 centUSD

276

Digital Construction Platform: A Compound Arm Approach  

E-Print Network [OSTI]

We introduce a novel large-scale Digital Construction Platform (DCP) for on-site sensing, analysis, and fabrication. The DCP is an in-progress research project consisting of a compound robotic arm system comprised of a ...

Spielberg, Nathan A.

2014-01-01T23:59:59.000Z

277

Monitoring Estrogen Compounds in Wastewater Recycling Systems  

Science Journals Connector (OSTI)

The presence of pharmaceuticals and personal care products (PPCPs) and endocrine disrupting chemicals (EDCs) in treated wastewater is gaining attention due to their potential ... quantify estrogen compounds in sa...

Deborah M. Kvanli; Sreelatha Marisetty; Todd A. Anderson…

2008-02-01T23:59:59.000Z

278

Perfluorohalogenoorgano Compounds of Main Group 5 Elements  

Science Journals Connector (OSTI)

The compounds of the Main Group 5 elements phosphorus, arsenic, antimony, and bismuth, are covered to the end of 1973 in “Perfluorhalogenorgano-Verbindungen der Hauptgruppenelemente”, Part 3, 1975 (cited here ...

Alois Haas; Michael R. Chr. Gerstenberger…

1983-01-01T23:59:59.000Z

279

Boron-nitrogen-hydrogen (BNH) compounds: recent developments in hydrogen storage, applications in hydrogenation and catalysis, and new syntheses  

SciTech Connect (OSTI)

The strong efforts devoted to the exploration of BNH compounds for hydrogen storage have led to impressive advances in the field of boron chemistry. This review summarizes progress in this field from three aspects. It starts with the most recent developments in using BNH compounds for hydrogen storage, covering NH3BH3, B3H8¯ containing compounds, and CBN compounds. The following section then highlights interesting applications of BNH compounds in hydrogenation and catalysis. The last part is focused on breakthroughs in the syntheses and discovery of new BNH organic analogues. The role of N?H?+•••H?-?B dihydrogen interactions in molecule packing, thermal hydrogen evolution, and syntheses is also discussed within the review. Part of this research is supported by the U.S. Department of Energy’s Basic Energy Sciences, Division of Chemical Sciences, Biosciences and Geosciences. Pacific Northwest National Laboratory is operated by Battelle.

Huang, Zhenguo; Autrey, Thomas

2012-11-15T23:59:59.000Z

280

Theoretical Limits of Hydrogen Storage in Metal-Organic Frameworks: Opportunities and Trade-Offs  

E-Print Network [OSTI]

technologies has highlighted the need for high- density energy storage.1 In the case of fuel cell vehicles (FCVTheoretical Limits of Hydrogen Storage in Metal-Organic Frameworks: Opportunities and Trade predict the hydrogen storage properties of these compounds. Approximately 20 000 candidate compounds were

Cafarella, Michael J.

Note: This page contains sample records for the topic "organic compounds tetraphenylborate" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Compound and Elemental Analysis At Rye Patch Area (DOE GTP) ...  

Open Energy Info (EERE)

Compound and Elemental Analysis At Rye Patch Area (DOE GTP) Exploration Activity Details Location Rye Patch Area Exploration Technique Compound and Elemental Analysis Activity Date...

282

Compound and Elemental Analysis At Fort Bliss Area (DOE GTP)...  

Open Energy Info (EERE)

Compound and Elemental Analysis At Fort Bliss Area (DOE GTP) Exploration Activity Details Location Fort Bliss Area Exploration Technique Compound and Elemental Analysis Activity...

283

Process for production of a borohydride compound  

DOE Patents [OSTI]

A process for production of a borohydride compound M(BH.sub.4).sub.y. The process has three steps. The first step combines a compound of formula (R.sup.1O).sub.yM with aluminum, hydrogen and a metallic catalyst containing at least one metal selected from the group consisting of titanium, zirconium, hafnium, niobium, vanadium, tantalum and iron to produce a compound of formula M(AlH.sub.3OR.sup.1).sub.y, wherein R.sup.1 is phenyl or phenyl substituted by at least one alkyl or alkoxy group; M is an alkali metal, Be or Mg; and y is one or two; wherein the catalyst is present at a level of at least 200 ppm based on weight of aluminum. The second step combines the compound of formula M(AlH.sub.3OR.sup.1).sub.y with a borate, boroxine or borazine compound to produce M(BH.sub.4).sub.y and a byproduct mixture containing alkali metal and aluminum aryloxides. The third step separates M(BH.sub.4).sub.y from the byproduct mixture.

Allen, Nathan Tait; Butterick, III, Robert; Chin, Arthur Achhing; Millar, Dean Michael; Molzahn, David Craig

2014-08-19T23:59:59.000Z

284

Questions and Answers - Is carbon found in all organic and inorganic  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

atoms make up sugar? atoms make up sugar? Previous Question (What atoms make up sugar?) Questions and Answers Main Index Next Question (In the equation for methane, why is there more hydrogen than carbon?) In the equation for methane, why isthere more hydrogen than carbon? Is carbon found in all organic and inorganic matter? The answer is yes and no. Yes, carbon IS found in all organic matter, but NOT in inorganic matter. Although there are many definitions of "organic," in the scientific disciplines, the basic definition comes from chemistry. In chemistry, organic means chemical compounds with carbon in them. In a more general sense, organic refers to living things. And this is connected to the idea of organic chemistry being based on carbon compounds. Organic

285

Semitransparent organic solar cells  

Science Journals Connector (OSTI)

The organic solar cell technology has attracted great interests due to ... low cost solution process capability. Bulk heterojunction organic solar cells offer a potentially much cheaper alternative way to harness...

Furong Zhu

2014-03-01T23:59:59.000Z

286

Effect of Mineral and Organic Soil Constituents on Microbial Mineralization of Organic Compounds in a Natural Soil  

Science Journals Connector (OSTI)

...remediation technology of in situ soil washing (10, 28). Most modern surfactants...Knaebel and Vestal (20). The surfactant-soil constituent complexes were added...small amount (100 mg) of the surfactant-soil constituent complex was mixed...

David B. Knaebel; Thomas W. Federle; Drew C. McAvoy; J. Robie Vestal

1994-12-01T23:59:59.000Z

287

EMSL - organic materials  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

compounds. In this work, time-of-flight secondary ion mass spectrometry (ToF-SIMS) is applied to determine the angular distribution of 1 MeV Au ions after penetrating a...

288

Organic photosensitive devices  

DOE Patents [OSTI]

The present invention generally relates to organic photosensitive optoelectronic devices. More specifically, it is directed to organic photosensitive optoelectronic devices having a photoactive organic region containing encapsulated nanoparticles that exhibit plasmon resonances. An enhancement of the incident optical field is achieved via surface plasmon polariton resonances. This enhancement increases the absorption of incident light, leading to a more efficient device.

Rand, Barry P; Forrest, Stephen R

2013-11-26T23:59:59.000Z

289

Process for producing phenolic compounds from lignins  

DOE Patents [OSTI]

A process is described for the production of low molecular weight phenolic compounds from lignins through the pyrolysis of the lignins in the presence of a strong base. In a preferred embodiment, potassium hydroxide is present in an amount of from about 0.1% to about 5% by weight, the pyrolysis temperature is from about 400 C to about 600 C at atmospheric pressure, and the time period for substantial completion of the reaction is from about 1--3 minutes. Examples of low molecular weight phenolic compounds produced include methoxyphenols, non-methoxylated phenols, and mixtures thereof. 16 figs.

Agblevor, F.A.

1998-09-15T23:59:59.000Z

290

Isomerism in Metal–Organic Frameworks: “Framework Isomers”  

Science Journals Connector (OSTI)

His research interest focuses on the controlled formation, and eventual design, of metal–organic frameworks for application in gas storage for clean energy technologies. ... After that, he completed his M.Sc. in Applied Chemistry at New Mexico Highlands University where he worked on X-ray structure determination of low-melting organic materials and their complexes with mercury-organic compounds. ... This was observed upon heating Cd(abdc)bipy-1 under pressure to generate Cd(abdc)bipy-3, and exposing Cd(abdc)bipy-3 to air to reform Cd(abdc)bipy-1. ...

Trevor A. Makal; Andrey A. Yakovenko; Hong-Cai Zhou

2011-06-28T23:59:59.000Z

291

Organization | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Organization Organization Organization Office of Indian Energy Organizational Structure As a program office at DOE responsible for implementing energy programs, the Office of Indian Energy is structurally organized under the Office of the Under Secretary. This programmatic structure also focuses and facilitates the coordination between the Office of Indian Energy and the other companion program offices such as the Office of Fossil Energy, Office of Electricity and Energy Reliability and Office of Energy Efficiency and Renewable Energy. The Office of Indian Energy is organized around its major statutory functions, namely, policy and programs: Indian Energy Policy. The Office of Indian Energy coordinates participation in the development, refinement, training, and advice

292

8.08 - Photophysics of Lanthanoid Coordination Compounds  

Science Journals Connector (OSTI)

Abstract In recent years, lanthanoids have become vital components to a wealth of advanced optical materials and related technologies. Sharp visible and near-infrared emissions result in exciting applications in lighting devices (fluorescent lamps and light-emitting diodes/organic light-emitting diodes), displays, telecommunications, lasers, sensors, luminescent bioprobes, or solar energy conversion and photocatalysts, to name a few. Many of these applications are presently based on coordination compounds, so that the field of luminescent lanthanoid complexes with organic ligands has literally exploded during the past two decades and presently more than 500 original articles are published annually on the subject. An exhaustive presentation of these works would require an entire book. Therefore, in this chapter, the focus is more on the basic aspects pertaining to the design of luminescent lanthanoid-containing complexes. After an introduction to lanthanoid spectroscopy, energy transfer processes are presented and analyzed, as well as ways of avoiding nonradiative deactivation through vibrations. Representative examples are detailed but extensive enumeration of data is avoided. Furthermore, the chapter gives some highlights on application to fields as diverse as biosciences, telecommunications, electroluminescent materials, and photovoltaics.

J.-C.G. Bünzli; S.V. Eliseeva

2013-01-01T23:59:59.000Z

293

Boron-containing amino carboxylic acid compounds and uses thereof  

DOE Patents [OSTI]

Novel compounds which are useful for boron neutron capture therapy (BNCT) are disclosed. The compounds comprise a stable boron-containing group and an aminocycloalkane carboxylic acid group or a boronated acyclic hydrocarbon-linked amino carboxylic acid. Methods for synthesis of the compounds and for use of the compounds in BNCT are disclosed.

Kabalka, George W. (Knoxville, TN); Srivastava, Rajiv R. (Knoxville, TN)

2000-03-14T23:59:59.000Z

294

Compositions containing borane or carborane cage compounds and related applications  

DOE Patents [OSTI]

Compositions comprising a polymer-containing matrix and a filler comprising a cage compound selected from borane cage compounds, carborane cage compounds, metal complexes thereof, residues thereof, mixtures thereof, and/or agglomerations thereof, where the cage compound is not covalently bound to the matrix polymer. Methods of making and applications for using such compositions are also disclosed.

Bowen, III, Daniel E; Eastwood, Eric A

2014-11-11T23:59:59.000Z

295

Cytokinin Regulates Compound Leaf Development in Tomato  

Science Journals Connector (OSTI)

...sample values fell within the standard curve (efficiency of 0.96...relative to the respective standard curve. At least three independent...compound leaves: A critical review. Plant Cell 22 : 1019-1032...plants with different body plans. Curr. Biol. 12 : 1557-1565...

Eilon Shani; Hadas Ben-Gera; Sharona Shleizer-Burko; Yogev Burko; David Weiss; Naomi Ori

2010-10-19T23:59:59.000Z

296

Nitroaromatic Compounds, from Synthesis to Biodegradation  

Science Journals Connector (OSTI)

...explosives but also are the fundamental building blocks in...from all combustion engines contains hydrocarbons...atmospheric pollution is diesel engine-powered motor...compounds, but several fundamental aspects regarding their...Explosives development and fundamentals of explosives technology...

Kou-San Ju; Rebecca E. Parales

2010-06-01T23:59:59.000Z

297

High Performance Subgraph Mining in Molecular Compounds  

E-Print Network [OSTI]

High Performance Subgraph Mining in Molecular Compounds Giuseppe Di Fatta1,2 and Michael R data makes distributed graph mining techniques particularly relevant. In this paper, we present method has been evaluated on the well-known National Cancer Institute's HIV-screening dataset, where

Reiterer, Harald

298

HYDROGEN LOCAL VIBRATIONAL MODES IN COMPOUND SEMICONDUCTORS  

E-Print Network [OSTI]

HYDROGEN LOCAL VIBRATIONAL MODES IN COMPOUND SEMICONDUCTORS M.D. MCCLUSKEY* University) spectroscopy of hydrogen and deuterium in GaP, AlSb, ZnSe, and GaN has provided important information about the structures of dopant- hydrogen complexes and their interaction with the host lattice. In GaN:Mg, for example

McCluskey, Matthew

299

Organic geochemical studies at a commercial shallow-land disposal site of low-level nuclear waste  

SciTech Connect (OSTI)

The subsurface migration of radionuclides has been studied at a commercial, shallow-land burial site of low-level nuclear waste at Maxey Flats, Kentucky. A variety of radionuclides including /sup 3/H, /sup 238/ /sup 239/ /sup 240/Pu, /sup 60/Co, /sup 137/Cs and /sup 90/Sr have migrated short distances on-site (meters to tens of meters). A number of the mobile radionuclides, notably plutonium and /sup 60/Co, appear to exist as anionic species with organic properties. As a result, we have studied the organic geochemistry of radioactive leachates pumped from a number of waste burial trenches throughout the site. The major aim of the organic research is to elucidate the role of organic compounds in mediating the subsurface migration of the mobile radionuclides in groundwater. A survey study of the hydrophilic and hydrophobic organic content of the waste leachates has revealed that organic compounds are readily leached from the buried waste. Organic chelating agents like EDTA, HEDTA and ED3A are the major hydrophilic organic compounds in the leachates, their concentrations ranging from 78 ppB to 19,511 ppB. A number of carboxylic acids are also present in the leachates, ranging from 675 ppB to 8757 ppB, collectively. A variety of hydrophobic organic compounds including barbiturates and other aromatic compounds, presumably waste-derived, are also present in the leachates, generally at lower ppB concentrations. A detailed chemical speciation study, aimed at determining whether any of the organic compounds identified in the survey study are associated with the mobile radionuclides, was undertaken using leachate from one of the waste trenches. It is clear that EDTA is chelated to plutonium and /sup 60/Co in the leachate, potentially mobilizing these radionuclides. Other radionuclides, /sup 137/Cs and /sup 90/Sr, may be associated with polar organic compounds such as carboxylic acids. 14 references, 2 figures, 2 tables.

Toste, A.P.; Kirby, L.J.; Pahl, T.R.

1984-01-01T23:59:59.000Z

300

Organic and inorganic components in estuarine colloids: Implications for sorption and transport of pollutants  

SciTech Connect (OSTI)

In colloids isolated from Chesapeake Bay and its subestuaries the concentrations of Al, Fe, and a number of trace elements were determined to vary with the clay mineral fraction that was most abundant in freshwater samples collected during the winter. The elements As, Ba, Sb, and Zn, however, increased with increasing organic content, indicating a covariance with the organic component. Organic analyses for amino acids, carbohydrates, and lipids indicate that these biopolymers comprised 4 to 22%, 20 to 60%, and less than 1%, respectively, of the colloidal organic carbon in these samples. The results are significant because amino acids and carbohydrates contain oxygen, nitrogen, and sulfur functional groups capable of reacting with trace metals and organic pollutants. The sorption properties of several neutral hydrophobic organic compounds, including PAHs and herbicides, and several aromatic amines were investigated using the estuarine colloidal material. The effects of several environmental variables on these sorption properties were determined. The results indicate that colloids have the capacity to sorb and transport relatively insoluble pollutants that otherwise might remain immobile in the environment. Colloidal organic matter in natural water systems may serve as substrates for the sorption or binding of organic contaminants. Although most of the data has been developed using neutral hydrophobic organic compounds, data also exist for selected polar compound groups such as aromatic amines. The chemical behavior of these compound groups in interaction with DOM appears to have some similarity to their chemical interaction with sediments and soils. Partitioning constants are linear, except for polar compounds, and appear to be closely correlated to fundamental compound properties such as solubilities and octanol-water partition coefficients. 84 references.

Sigleo, A.C.; Means, J.C. (Geological Survey, Lakewood, CO (USA))

1990-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "organic compounds tetraphenylborate" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

A Broad Spectrum Catalytic System for Removal of Toxic Organics from Water by Deep Oxidation - Final Report  

SciTech Connect (OSTI)

A most pressing need for the DOE environmental management program is the removal of toxic organic compounds present in groundwater and soil at specific DOE sites. While several remediation procedures have been proposed, they suffer from one or more drawbacks. The objective of the present research was to develop new catalytic procedures for the removal of toxic organic compounds from the environment through their deep oxidation to harmless products. In water, metallic palladium was found to catalyze the deep oxidation of a wide variety of toxic organic compounds by dioxygen at 80-90 C in the presence of carbon monoxide or dihydrogen. Several classes of organic compounds were examined: benzene, phenol and substituted phenols, nitro and halo organics, organophosphorus, and organosulfur compounds. In every case, deep oxidation to carbon monoxide, carbon dioxide, and water occurred in high yields, resulting in up to several hundred turnovers over a 24 hour period. For substrates susceptible to hydrogenation, the conversions were generally high with dihydrogen than with carbon monoxide. It is clear from the results obtained that we have discovered an exceptionally versatile catalytic system for the deep oxidation of toxic organic compounds in water. This system possesses several attractive features not found simultaneously in other reported systems. These are (a) the ability to directly utilize dioxygen as the oxidant, (b) the ability to carry out the deep oxidation of a particularly wide range of functional organics, and (c) the ease of recovery of the catalyst by simple filtration.

Sen, Ayusman

2000-12-01T23:59:59.000Z

302

Analytical Chemistry Laboratory (ACL) procedure compendium. Volume 4, Organic methods  

SciTech Connect (OSTI)

This interim notice covers the following: extractable organic halides in solids, total organic halides, analysis by gas chromatography/Fourier transform-infrared spectroscopy, hexadecane extracts for volatile organic compounds, GC/MS analysis of VOCs, GC/MS analysis of methanol extracts of cryogenic vapor samples, screening of semivolatile organic extracts, GPC cleanup for semivolatiles, sample preparation for GC/MS for semi-VOCs, analysis for pesticides/PCBs by GC with electron capture detection, sample preparation for pesticides/PCBs in water and soil sediment, report preparation, Florisil column cleanup for pesticide/PCBs, silica gel and acid-base partition cleanup of samples for semi-VOCs, concentrate acid wash cleanup, carbon determination in solids using Coulometrics` CO{sub 2} coulometer, determination of total carbon/total organic carbon/total inorganic carbon in radioactive liquids/soils/sludges by hot persulfate method, analysis of solids for carbonates using Coulometrics` Model 5011 coulometer, and soxhlet extraction.

Not Available

1993-08-01T23:59:59.000Z

303

APS Users Organization  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

APSUO APSUO By-Laws Steering Commitee Employment Meetings Compton Award Franklin Award APS Users Organization The APSUO is responsible for advising the APS Associate Laboratory Director in the following areas: The Organization will serve as an advocacy group for the Facility and its user community. The Organization will provide advice to the ALD on matters affecting the user community. The Organization will assure good communication between the APS user community and the APS management. APSUO By-Laws The by-laws upon which the APS User Organization is based. List of Steering Committee Members Steering committee for the APS Users Organization. Employment Bulletin Board APS-related employment opportunities. APSUO Steering Committee Meetings Minutes and presentations from the APSUO meetings.

304

Cascade Organic Solar Cells  

Science Journals Connector (OSTI)

Cascade Organic Solar Cells ... Multiple factors control the efficiency of organic solar cells, making it difficult to use single donor or acceptor materials to balance the, often opposing, material properties required to optimize device performance. ... We demonstrate planar organic solar cells consisting of a series of complementary donor materials with cascading exciton energies, incorporated in the following structure: glass/indium-tin-oxide/donor cascade/C60/bathocuproine/Al. ...

Cody W. Schlenker; Vincent S. Barlier; Stephanie W. Chin; Matthew T. Whited; R. Eric McAnally; Stephen R. Forrest; Mark E. Thompson

2011-09-02T23:59:59.000Z

305

Modern Organic Chemistry  

Science Journals Connector (OSTI)

... to organic chemistry, tautomerism, glutaconic acids, the constitution of urea, the menthone chemistry, carene, hydroxymethylenecamphor, squalene, insulin, the production of acetic acid from cellulose by anaerobic fermentation ...

J. R.

1928-06-02T23:59:59.000Z

306

EMSL - soil organic matter  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

soil-organic-matter en Structures and Stabilities of (MgO)n Nanoclusters. http:www.emsl.pnl.govemslwebpublicationsstructures-and-stabilities-mgon-nanoclusters

307

Southern California Edison's (SCE) Research Program for Industrial Volatile Organic Compound (VOC) Emissions Control  

E-Print Network [OSTI]

. Applied Utility Systems Rosemead, California Tarrytown, New York Santa Ana, California ABSTRACT SCE has developed and implemented a research program for customer retention through VOC emission control. Following characterization of problematic..., California RON CASCONE Senior Consultant Chem Systems, Inc. Tarrytown, New York JIM REESE Applied Utility Santa Ana, California ABSTRACT SCE has developed and implemented a research program for customer retention through VOC emission control. Following...

Sung, R. D.; Cascone, R.; Reese, J.

308

The transformation of organic amines by transition metal cluster compounds: Progress report  

SciTech Connect (OSTI)

Research during the current award period has covered several related topics which have emerged and grown as a consequence of the various discoveries that have been made during this award period. They have been divided into the following subsections for clarity and emphasis: The activation of tertiary amines by osmium cluster complexes; CH bond activation and ring opening of a nitrogen containing strained ring heterocycle by an osmium cluster complex; Ring opening of cyclic thioethers; cyclooligomerization of Thietanes; Studies of the cyclobutyne ligand; Insertion of an alkynes into metal-metal bonds; and Energy storage in metal clusters. A summary of the results of these studies is given in the following sections of this report. These studies have resulted in 50 scientific publications over the last three years and details of their studies beyond that given in the following sections can be found in those reports. All of these reports are listed in the final section of this report by the author`s names, title and journal citation.

Adams, R.D.

1994-11-01T23:59:59.000Z

309

Reactivity of Organic Compounds in Hot Water: Geochemical and Technological Implications  

Science Journals Connector (OSTI)

...HIGH-TEMPERATURE HYDROLYSIS AND THERMOLYSIS OF TETRAHYDROTHIOPHENE IN RELATION TO STEAM STIMULATION...HIGH-TEMPERATURE HYDROLYSIS OF TETRAHYDROTHIOPHENE AND THIOPHENE, FUEL 63 : 125...3. REACTION OF THIOPHENE AND TETRAHYDROTHIOPHENE WITH VANADYL AND NICKEL SALTS...

MICHAEL SISKIN; ALAN R. KATRITZKY

1991-10-11T23:59:59.000Z

310

Enthalpies of Vaporization of Organic and Organometallic Compounds, James S. Chickosa...  

E-Print Network [OSTI]

... Department of Chemistry, University of Missouri-St. Louis, St. Louis, Missouri 63121 William E. Acree, Jr.b... Department of Chemistry, University of North Texas, Denton, Texas 76203 Received 17 June 2002; accepted 17 compendia focused on fusion and sublimation enthalpies. Sufficient data are presently available for many

Chickos, James S.

311

Emissions of volatile organic compounds inferred from airborne flux measurements over a megacity  

E-Print Network [OSTI]

mixing ratios and vertical wind speed plotted as a functionPanel: De-trended vertical wind speed (blue) and toluene (between toluene and vertical wind speed. Dashed curve

Karl, T.; Apel, E.; Hodzic, A.; Riemer, D. D; Blake, D. R; Wiedinmyer, C.

2009-01-01T23:59:59.000Z

312

Innovative technologies and vadose zone treatment of chlorinated volatile organic compounds: Case study  

Science Journals Connector (OSTI)

...placed in operation in 1996 to provide hydraulic containment of groundwater containing...mechanical response of sediments to the hydraulic advancement of a probe equipped with...testing was performed using a portable, trailer-mounted SVE unit with a maximum capacity...

Jay V. Noonkester; Ralph L. Nichols; Kenneth L. Dixon

313

Halogenated Volatile Organic Compounds from the Use of Chlorine-Bleach-Containing Household Products  

Science Journals Connector (OSTI)

A number of household cleaning products (bleaches, mildew stain removers, toilet cleaners, cleaning sprays, gels, and scouring powders) contain sodium hypochlorite (NaOCl, ?5%). ... Each tube was packed at the upstream (sampling) end with 3 mm silanized glass-wool followed by a series of sections of 150 mg Tenax TA (60/80 mesh) (Supelco, Bellefonte, PA, USA), 3 mm silanized glass-wool, 100 mg Carboxen 1000 (Supelco, Bellefonte, PA), and finally, 3 mm silanized glass-wool at the downstream end. ...

Mustafa Odabasi

2008-02-01T23:59:59.000Z

314

Chemistry of Secondary Organic Aerosol Formation From the Reaction of Hydroxyl Radicals With Aromatic Compounds  

E-Print Network [OSTI]

R.M. , Seinfeld J.H. , Wallington T.J. , Yarwood G. , 2002.R.M. , Seinfeld J.H. , Wallington T.J. , Yarwood G. , 2002.R.M. , Seinfeld J.H. , Wallington T.J. , Yarwood G. , 2002.

Strollo Gordon, Christen Michelle

2013-01-01T23:59:59.000Z

315

The Identification of Organic Compounds in Oil Shale Retort Water by GC and GC-MS  

Science Journals Connector (OSTI)

A separation scheme is presented for the analysis of oil shale retort water by gas chromatography (GC)...

D. H. Stuermer; D. J. Ng; C. J. Morris…

1982-01-01T23:59:59.000Z

316

Intake of Toxic and Carcinogenic Volatile Organic Compounds from Secondhand Smoke in Motor Vehicles  

Science Journals Connector (OSTI)

...illness, history of major medical or psychiatric conditions...the car 60 minutes after the lighting of the first cigarette. The...supported by the Flight Attendants Medical Research Institute (FAMRI...Francisco General Hospital Medical Center (NIH/NCRR UCSF-CTSI...

Gideon St.Helen; Peyton Jacob III; Margaret Peng; Delia A. Dempsey; S. Katharine Hammond; and Neal L. Benowitz

2014-12-01T23:59:59.000Z

317

Radiocarbon Measurements of Atmospheric Volatile Organic Compounds:? Quantifying the Biogenic Contribution  

Science Journals Connector (OSTI)

The ability to obtain quality (interpretable) [14C]VOC measurements however relies on additional factors:? (1) transferring individual VOCs to the measurement system in a manner that preserves their original relative concentrations in the atmosphere (recovery), (2) quantifying limitations in the VOC isolation process (bias), and 3) quantifying chemical and isotopic contamination (blanks). ... The fM results for the VOC fractions from calibration mixtures and ambient samples are corrected for CO2 contamination using eq 2, where ?BLK in this case is defined as in which mCO2 is the carbon mass of residual atmospheric CO2 following LiOH treatment plus the carbon mass of CO2 contamination from the O2 used for VOC oxidation, and mREC is the total recovered carbon (Table 3). ... During pressurized sampling of humid air, water will be condensed in the canisters. ...

George A. Klouda; Charles W. Lewis; Reinhold A. Rasmussen; George C. Rhoderick; Robert L. Sams; Robert K. Stevens; Lloyd A. Currie; Douglas J. Donahue; A. J. Timothy Jull; Robert L. Seila

1996-03-26T23:59:59.000Z

318

Chromatographic Enrichment of Acidic Compounds from Organic Solvents Using Alkali Metal Silicates  

Science Journals Connector (OSTI)

......Fox, D.S. Farrier, and R.E. Paulson. Chemical char- acterization and analytical considerations for an in situ oil shale process water. U.S. Department of Energy, LETC/RI-78/7. Laramie Energy Technology Center, Lara- mie, Wyoming......

D.L. Stalling; J.D. Petty; L.M. Smith

1981-01-01T23:59:59.000Z

319

Apparatus for Determining Sulfur in Organic Compounds by Means of Gas Chromatography  

Science Journals Connector (OSTI)

......fuel, crude oil, and various grades of coal. However, our experience with the method...in the Schiiniger flask. The complete combustion of sulfur in pure oxygen is readily effected...moles origin- ally present. Classical chemistry allows one to cal- culate the percentage......

Philipp W. H. Schuessler

1969-12-01T23:59:59.000Z

320

Low-Level Detections of Halogenated Volatile Organic Compounds in Groundwater  

E-Print Network [OSTI]

Assessments L. Niel Plummer1 ; Eurybiades Busenberg2 ; Sandra M. Eberts3 ; Laura M. Bexfield4 ; Craig J. Brown5 ; Lynne S. Fahlquist6 ; Brian G. Katz7 ; and Matthew K. Landon8 Abstract: Concentrations study areas in the United States. In each case, the untreated water sample was used for drinking

Note: This page contains sample records for the topic "organic compounds tetraphenylborate" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Towards crystal structure prediction of complex organic compounds - a report on the fifth blind test  

Science Journals Connector (OSTI)

The results of the fifth blind test of crystal structure prediction, which show important success with more challenging large and flexible molecules, are presented and discussed.

Bardwell, D.A.

2011-11-17T23:59:59.000Z

322

Annual research plan, 1983-84. [Organic compounds derived from fossil substances  

SciTech Connect (OSTI)

The National Institute for Petroleum and Energy Research (NIPER) resulted from efforts by the Department of Energy (DOE) to ensure the continuity of the unique energy research capabilities that had been developed at the Bartlesville Energy Technology Center (BETC) over the past 65 years. This was accomplished by a Cooperative Agreement between DOE and IIT Research Institute (IITRI). The agreement to operate NIPER for the five fiscal years 1984-88 became effective October 1, 1983. The NIPER Annual Research Plan for 1983-84 consists of eight projects in the Base Program and 13 projects in the Optional Program. A sampling of potential Work for Others projects is also presented. The Base Program consists of five EOR and three Fundamental Petroleum Chemistry projects. The Optional Program has three EOR projects, one Unconventional Gas Recovery project, five APT projects, and four Advanced Utilization Research projects.

None

1984-05-01T23:59:59.000Z

323

Concentration of light organic compounds from dilute aqueous solutions by adsorption on bound silicalite  

E-Print Network [OSTI]

conventional distillation with a reflux ratio of 1. 5 R;? for the same separation. Approximately 10. 3 MJ L of the 21. 7 MJ L can be recycled to other processes such as stillage drying so the actual energy consumed is 11. 4 M J L . The intermediate heat pump... which is hydrophilic. The adsorption of water by the binder increases the energy needed to regenerate the column and dilutes the ethanol product. This occurrence is eliminated by using a. hydrophobic binder to attach the Silicalite to heat exchanger...

Flores, Kathryn Louise

1989-01-01T23:59:59.000Z

324

Impacts of nitrogen fertilization on volatile organic compound emissions from decomposing plant litter  

E-Print Network [OSTI]

decomposing litter from 12 plant species over 125 days, measuring both CO2 and VOC emissions throughout with C emissions as VOCs ranging from 0% to 88% of C emissions as CO2. Methanol was the dominant VOC was occasionally large enough to account for the increased CO2 emissions on a per unit C basis, suggesting that N

Fierer, Noah

325

Electrosynthesis of Organic Compounds from Carbon Dioxide Is Catalyzed by a Diversity of Acetogenic Microorganisms  

Science Journals Connector (OSTI)

...would not be able to conserve energy in this manner because it contains...part by the Advanced Research Projects Agency-Energy (ARPA-E), U.S. Department...planet: chemical challenges in solar energy utilization. Proc. Natl. Acad...

Kelly P. Nevin; Sarah A. Hensley; Ashley E. Franks; Zarath M. Summers; Jianhong Ou; Trevor L. Woodard; Oona L. Snoeyenbos-West; Derek R. Lovley

2011-03-04T23:59:59.000Z

326

SPECIATION OF TRACE ORGANIC LIGANDS AND INORGANIC AND ORGANOMETALLIC COMPOUNDS IN OIL SHALE PROCESS WATERS  

E-Print Network [OSTI]

CA 94720 ABSTRACT in the boiler used to make process steam.water, gas condensate, and boiler blowdown. A summary of thewater, gas condensate, and boiler blowd01m. Retort water and

Fish, Richard H.

2013-01-01T23:59:59.000Z

327

Identifying Sources of Volatile Organic Compounds and Aldehydes in a High Performance Building  

E-Print Network [OSTI]

Efficiency and Renewable Energy, Building Technologiesand Renewable Energy, Office of Building Technology, State,

Ortiz, Anna C.

2010-01-01T23:59:59.000Z

328

Temperature dependence of volatile organic compound evaporative emissions from motor vehicles  

E-Print Network [OSTI]

gasoline samples collected at Sacramento area service stations. Vapor-liquid equilibrium relationships were summer 2001. Additional gasoline- related VOC emissions not shown in Figure 1 occur at service stations gasoline permeation through rubber and plastic components of the fuel system. [3] EMFAC [California Air

Silver, Whendee

329

Flux Measurements of Volatile Organic Compounds from an Urban Tower Platform  

E-Print Network [OSTI]

) and observe an integrated effect from what is called an upwind footprint area. Previous such studies have been limited to a few cities: Nemitz et al. (2002) and Dorsey et al. (2002) measured particle and CO 2 fluxes above the city of Edinburgh, UK, while M... intercomparison tests ..................................... 28 2.5.2. Quantification............................................................................. 30 2.5.3. Footprint analysis...

Park, Chang Hyoun

2011-08-08T23:59:59.000Z

330

Electrosynthesis of Organic Compounds from Carbon Dioxide Is Catalyzed by a Diversity of Acetogenic Microorganisms  

Science Journals Connector (OSTI)

...4 North, University of Massachusetts, Microbiology, 639 North...Microbiology, University of Massachusetts-Amherst, Amherst, Massachusetts Microbial electrosynthesis...renewable strategies, such as solar or wind, into forms that...

Kelly P. Nevin; Sarah A. Hensley; Ashley E. Franks; Zarath M. Summers; Jianhong Ou; Trevor L. Woodard; Oona L. Snoeyenbos-West; Derek R. Lovley

2011-03-04T23:59:59.000Z

331

Reaction of lithium tris(tert-butylthiolato)hydridoaluminate with selected organic compounds containing representative functional groups  

Science Journals Connector (OSTI)

The simple aldehydes examined were readily reduced with 10% excess reagent at 0 °C to produce the... 1 $$ {\\text{LiAlH}}_{4} + 3 t{\\text{-BuSH}} {\\mathop{\\longrightarrow}...

Jin Soon Cha; Se Jin Yu

2009-10-01T23:59:59.000Z

332

Cancer risks from soil emissions of volatile organic compounds at the Lawrence Livermore National Laboratory  

SciTech Connect (OSTI)

The emission isolation flux chamber (EIFC) methodology was applied to Superfund investigations at the Lawrence Livermore National Laboratory Site 300 to determine if on-site workers were exposed to VOCs volatilizing from the subsurface and what, if any, health risks could be attributed to the inhalation of the VOCs volatilizing from the subsurface. During July and August of 1996, twenty, eighteen, and twenty six VOC soil vapor flux samples were collected in the Building 830, 832, and 854 areas, respectively using EIFCS. The VOC concentrations in the vapor samples were used to calculate soil flux rates which were used as input into an air dispersion model to calculate ambient air exposure-point concentrations. The exposure-point concentrations were compared to EPA Region IX Preliminary Remediation Goals (PRGs). Buildings 830 and 832 exposure-point concentrations were less then the PRGs therefore no cancer risks were calculated. The cancer risks for Building 854 ranged from 1.6 x 10{sup -7} to 2.1 x 10{sup -6}. The resultant inhalation cancer risks were all within the acceptable range, implying that on-site workers were not exposed to VOC vapors volatilizing from the subsurface soil that could have significant cancer risks. Therefore remediation in these areas would not be necessary.

Dibley, V. R., LLNL

1998-02-01T23:59:59.000Z

333

The toxicity of several organic phosphorus compounds to cotton insects and spider mites  

E-Print Network [OSTI]

by operating a spray gun air-tank assembly, which was mounted on a stand* The cone nozzles could be adjusted to give adequate coverage of the plants. The spray gun con? sisted of 2 nozzles, a small copper tank and a regulated air supply. The spray.......................................................... 79 Bibliography........................................................81 Page TABLES Table Page 1? Results of laboratory cage toxicity tests for boll weevil control using insecticides indicated applied as sprays in experiment 1 at College S t a...

Fuller, Freeman Miree

2013-10-04T23:59:59.000Z

334

Vehicular emission of volatile organic compounds (VOCs) from a tunnel study in Hong Kong  

E-Print Network [OSTI]

ethene toluene n-butane propane i-pentane i-butane propeneethene, toluene, n-butane, propane and i-pentane. These fiveVOCs emitted. The high propane and n-butane emissions were

2009-01-01T23:59:59.000Z

335

Observations of nonmethane organic compounds during ARCTAS - Part 1: Biomass burning emissions and plume enhancements  

E-Print Network [OSTI]

TOGA WAS Isobutane WAS Propane WAS Ethane TOGA WAS ButaneButane i-Butane Propene Propane Ethyne Ethene Ethane globallight alkanes against propane determined using the WAS data,

2011-01-01T23:59:59.000Z

336

Chemical evolution of volatile organic compounds in the outflow of the Mexico City Metropolitan area  

E-Print Network [OSTI]

C-130 T0 T1 G1 Ethane Propane i-Butane n-Butane i-Pentane n-ppbv) Ethane Ethene Ethyne Propane Propene i-Butane n-Butanee.g. , ethane, ethene, propane, propane, methanol, ethanol,

2010-01-01T23:59:59.000Z

337

SPECIATION OF TRACE ORGANIC LIGANDS AND INORGANIC AND ORGANOMETALLIC COMPOUNDS IN OIL SHALE PROCESS WATERS  

E-Print Network [OSTI]

with a flameless atomic absorption detector for speciationA. , "Graphite furnace atomic absorption spectrophotometerscoupled with an atomic absorption detector," in preparation,

Fish, Richard H.

2013-01-01T23:59:59.000Z

338

Method of polymerizing exo-methylene cyclic organic compounds using homogeneous ring-opening catalysts  

DOE Patents [OSTI]

The regiospecific (1,2-Me.sub.2 C.sub.5 H.sub.3).sub.2 ZrMe.sup.+ MeB(C.sub.6 F.sub.5).sub.3.sup.- mediated ring-opening polymerization of methylenecyclobutane and its copolymerization with ethylene to polyolefins of microstructure--{CH.sub.2 CH.sub.2 CH.sub.2 C(CH.sub.2)]--.sub.n and {--[CH.sub.2 CHR]--.sub.x [CH.sub.2 CH.sub.2 CH.sub.2 C(CH.sub.2)]--.sub.y }.sub.n' respectively, is disclosed.

Marks, Tobin J. (Evanston, IL); Yang, Xinmin (Chicago, IL); Jia, Li (Evanston, IL)

1994-01-01T23:59:59.000Z

339

Magnetic Permanently Confined Micelle Arrays for Treating Hydrophobic Organic Compound Contamination  

Science Journals Connector (OSTI)

(19) Owing to their hydrophobic cores, surfactant micelles have the capability of significantly enhancing the water solubility of HOCs,(14, 19, 20) which has prompted the use of surfactants in conventional soil washing systems to enhance their treatment efficiency for HOC-contaminated soils and sediments ex situ. ... (24, 25) Furthermore, in the conventional surfactant-washing system, there is a need to separate fine soil or sediment particles that are laden with surfactants out of aqueous phase after soil washing, which usually is an energy-intensive process, involving centrifugation. ... Although nonionic surfactants have been considered in surfactant-aided soil washing systems, there is little information on the particle-size dependence of these processes, which may have significant implications for design of these systems. ...

Peng Wang; Qihui Shi; Yifeng Shi; Kristin K. Clark; Galen D. Stucky; Arturo A. Keller

2008-12-04T23:59:59.000Z

340

Transport and sorption of volatile organic compounds and water vapor in porous media  

SciTech Connect (OSTI)

To gain insight on the controlling mechanisms for VOC transport in porous media, the relations among sorbent properties, sorption equilibrium and intraparticle diffusion processes were studied at the level of individual sorbent particles and laboratory columns for soil and activated carbon systems. Transport and sorption of VOCs and water vapor were first elucidated within individual dry soil mineral grains. Soil properties, sorption capacity, and sorption rates were measured for 3 test soils; results suggest that the soil grains are porous, while the sorption isotherms are nonlinear and adsorption-desorption rates are slow and asymmetric. An intragranular pore diffusion model coupled with the nonlinear Freundlich isotherm was developed to describe the sorption kinetic curves. Transport of benzene and water vapor within peat was studied; partitioning and sorption kinetics were determined with an electrobalance. A dual diffusion model was developed. Transport of benzene in dry and moist soil columns was studied, followed by gaseous transport and sorption in activated carbon. The pore diffusion model provides good fits to sorption kinetics for VOCs to soil and VOC to granular activated carbon and activated carbon fibers. Results of this research indicate that: Intraparticle diffusion along with a nonlinea sorption isotherm are responsible for the slow, asymmetric sorption-desorption. Diffusion models are able to describe results for soil and activated carbon systems; when combined with mass transfer equations, they predict column breakthrough curves for several systems. Although the conditions are simplified, the mechanisms should provide insight on complex systems involving transport and sorption of vapors in porous media.

Lin, Tsair-Fuh

1995-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "organic compounds tetraphenylborate" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Atmospheric Aerosols Aging Involving Organic Compounds and Impacts on Particle Properties  

E-Print Network [OSTI]

) and chemical reactions (oxidation of particles by gas-phase oxidants and heterogeneous reactions between gas molecules and particles).5 For example, when initially formed, soot particles are hydrophobic and fractal in morphology, with low effective density... particles have a ? value of 1.0; whereas fractal ones will have ? > 1.0. Measurements of Aerosol Optical Properties The optical system consisted of a commercial integrating Nephelometer (Model 3563, TSI) and a CRDS connected in series.20 The particles...

Qiu, Chong

2013-02-01T23:59:59.000Z

342

Field Derived Emission Factors For Formaldehyde and other Volatile Organic Compounds in FEMA Temporary Housing Units  

E-Print Network [OSTI]

Urea Formaldehyde Foam Insulation (UFFI), Consumer Product1972 urea formaldehyde foam insulation (UFFI) caused health

Parthasarathy, Srinandini

2011-01-01T23:59:59.000Z

343

Electrosynthesis of Organic Compounds from Carbon Dioxide Is Catalyzed by a Diversity of Acetogenic Microorganisms  

Science Journals Connector (OSTI)

...strategy for capturing electrical energy in carbon-carbon bonds of...strategy for converting electrical energy harvested with renewable strategies, such as solar or wind, into forms that can be stored...particular concern for solar energy, because it is a vast energy...

Kelly P. Nevin; Sarah A. Hensley; Ashley E. Franks; Zarath M. Summers; Jianhong Ou; Trevor L. Woodard; Oona L. Snoeyenbos-West; Derek R. Lovley

2011-03-04T23:59:59.000Z

344

Removal of hydrophobic Volatile Organic Compounds1 in an integrated process coupling Absorption and2  

E-Print Network [OSTI]

technology like photochemical oxidation shows high efficiency70 but is also high energy-consuming; moreover processes involve water as absorbent, they appear not always really efficient for the treatment of24 of the process, hydrophobic VOC27 absorption in a gas-liquid contactor, and biodegradation in the TPPB. VOC

Boyer, Edmond

345

Observations of nonmethane organic compounds during ARCTAS - Part 1: Biomass burning emissions and plume enhancements  

E-Print Network [OSTI]

from smoldering combustion of biomass measured by open-pathorganic species from biomass combustion, J. Geophys. Res. ,Biomass Burning Plume Origin Plume Age, Days a Modified Combustion

2011-01-01T23:59:59.000Z

346

E-Print Network 3.0 - anthropogenic organic compounds Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

impossible... and qualitatively, the entire empirical basis for the anthropogenic greenhouse effect, specifically ... Source: Schwartz, Stephen E. - Environmental Chemistry...

347

Investigation of Nitro-Organic Compounds in Diesel Engine Exhaust: Final Report, February 2007 - April 2008  

SciTech Connect (OSTI)

The National Renewable Energy Laboratory upgraded its ReFUEL engine and vehicle testing facility to speciate unregulated gas-phase emissions. To complement this capability, the laboratory contracted with the Colorado School of Mines (CSM) to study the effects of soy biodiesel fuel and a diesel particle filter (DPF) on emissions of polycyclic aromatic hydrocarbons (PAH) and nitro-polycyclic aromatic hydrocarbons (NPAH). CSM developed procedures to sample diesel particulate matter (PM) emissions from raw and diluted exhaust, with and without a DPF. They also developed improved procedures for extracting PAH and NPAH from the PM and quantifying them with a gas chromatograph-electron monochromator mass spectrometer. The study found the DPF generally reduced PAH emissions by 1 to 3 orders of magnitude. PAH conversion was lowest for B100, suggesting that PAHs were forming in the DPF. Orders of magnitude reductions were also found for NPAH emissions exiting the DPF.

Dane, J.; Voorhees, K. J.

2010-06-01T23:59:59.000Z

348

Organic compounds in water extracts of coal: links to Balkan endemic nephropathy  

Science Journals Connector (OSTI)

Most of the world’s energy is provided by fossil fuels, and coal is the world’s most abundant fossil fuel with reserves substantially greater than those of oil and...2008). “Lignite” ranks in between peat and sub...

S. V. M. Maharaj; W. H. Orem; C. A. Tatu…

2014-02-01T23:59:59.000Z

349

Hybrid membranes and their use in volatile organic compound/air separations  

E-Print Network [OSTI]

the chemical modification of a tubular y-alumina membrane with octadecyltrichlorosilane, ODS. Following the modification, unbound chlorosilane material was extracted Irom the membrane by exposure to toluene. Despite 10 the extraction step, C-H bonds were..., it was concluded that the chlorosilane groups were forming covalent bonds with thc membrane surface hydroxyl groups. A proposed reaction is illustrated in Fig. I. Note that Stevens has presented data clarifying that, because of bond length and angle...

Krohn, John Eric

2001-01-01T23:59:59.000Z

350

The removal kinetics of industrial organic compounds in natural and synthetic systems  

E-Print Network [OSTI]

techniques of most interest are; least squares curve fitting of non-linear functions, differentiation and integration of data wh1ch are not equally spaced, and interpolation - extrapolation (5, 15). The capability of presenting different kinetic...

Petrasek, Albert Charles

1970-01-01T23:59:59.000Z

351

Water quality studies in Kranji Catchment, Singapore : use of organic tracer and PEDs for identifying potential sewage sources  

E-Print Network [OSTI]

The objective of this study was to identify organic compounds that could serve as indicators of potential human fecal contamination sources to the Kranji Reservoir in Singapore that could be used as confirmation indicators ...

Mendez Sagel, Adriana (Adriana Raquel)

2010-01-01T23:59:59.000Z

352

Organic vapor jet printing system  

SciTech Connect (OSTI)

An organic vapor jet printing system includes a pump for increasing the pressure of an organic flux.

Forrest, Stephen R

2012-10-23T23:59:59.000Z

353

Automation of organic elemental analysis  

Science Journals Connector (OSTI)

Automation of organic elemental analysis ... Describes the development and design of an apparatus for automated organic elemental analysis. ...

Velmer B. Fish

1969-01-01T23:59:59.000Z

354

Compound refractive X-ray lens  

DOE Patents [OSTI]

An apparatus and method for focusing X-rays. In one embodiment, his invention is a commercial-grade compound refractive X-ray lens. The commercial-grade compound refractive X-ray lens includes a volume of low-Z material. The volume of low-Z material has a first surface which is adapted to receive X-rays of commercially-applicable power emitted from a commercial-grade X-ray source. The volume of low-Z material also has a second surface from which emerge the X-rays of commercially-applicable power which were received at the first surface. Additionally, the commercial-grade compound refractive X-ray lens includes a plurality of openings which are disposed between the first surface and the second surface. The plurality of openings are oriented such that the X-rays of commercially-applicable power which are received at the first surface, pass through the volume of low-Z material and through the plurality openings. In so doing, the X-rays which emerge from the second surface are refracted to a focal point.

Nygren, David R. (Berkeley, CA); Cahn, Robert (Walnut Creek, CA); Cederstrom, Bjorn (Traellborg, SE); Danielsson, Mats (Stocksund, SE); Vestlund, Jonas (Stockholm, SE)

2000-01-01T23:59:59.000Z

355

Hydromechanical transmission with compound planetary assembly  

DOE Patents [OSTI]

A power transmission having three distinct ranges: (1) hydrostatic, (2) simple power-split hydromechanical, and (3) compound power-split hydromechanical. A single compound planetary assembly has two sun gears, two ring gears, and a single carrier with two sets of elongated planet gears. The two sun gears may be identical in size, and the two ring gears may be identical in size. A speed-varying module in driving relationship to the first sun gear is clutchable, in turn, to (1) the input shaft and (2) the second sun gear. The speed-varying means may comprise a pair of hydraulic units hydraulically interconnected so that one serves as a pump while the other serves as a motor and vice versa, one of the units having a variable stroke and being the one clutchable to either the input shaft or to the second sun gear. The other unit, which may have a fixed stroke, is connected in driving relation to the first sun gear. A brake grounds the carrier in the first range and in reverse and causes drive to be delivered to the output shaft through the first ring gear in a hydrostatic mode, the first ring gear being rigidly connected to the output shaft. The input shaft is also clutchable to the second ring gear of the compound planetary assembly.

Orshansky, Jr., deceased, Elias (late of San Francisco, CA); Weseloh, William E. (San Diego, CA)

1980-01-01T23:59:59.000Z

356

Observations of Secondary Organic Aerosol Production and Soot Aging under Atmospheric Conditions Using a Novel Environmental Aerosol Chamber  

E-Print Network [OSTI]

, heterogeneous surface reactions, cloud processing, and gas-to-particle partitioning through the formation of secondary organic aerosol (SOA) by organic gases (Pankow 1994). Moreover, SOA has been linked to adverse health effects as they typically contain... 1985; Ng et al. 2006; Presto et al. 2005; Saathoff et al. 2003). Such classes include cycloalkenes, aromatic hydrocarbons, and terpenes, most of which are cyclic compounds. When these compounds undergo atmospheric oxidation, 3 they produce first-generation...

Glen, Crystal

2012-02-14T23:59:59.000Z

357

Selling body organs  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Selling body organs Selling body organs Name: Betty A Laliberte Location: N/A Country: N/A Date: N/A Question: If a tissue donor dies and some of his/her tissue is donated, should the family be given money or some other benefit? I am a freshman at York HS and am doing a bioethics project. Replies: An interesting question. In my opinion, a family should not receive payment for organ donation. That would introduce an economic element into the decision, which does not seem appropriate. One problem is: Who will pay? The recipient? What if he can't afford it? Who gets the organ? The highest bidder? I guess part of my problem with selling organs and tissues is religious in nature. To me, my life and my body were given freely to me and they are not mine to sell to someone else. They certainly do not belong to my family to profit from.

358

Characterizing the formation of secondary organic aerosols  

SciTech Connect (OSTI)

Organic aerosol is an important fraction of the fine particulate matter present in the atmosphere. This organic aerosol comes from a variety of sources; primary organic aerosol emitted directly from combustion process, and secondary aerosol formed in the atmosphere from condensable vapors. This secondary organic aerosol (SOA) can result from both anthropogenic and biogenic sources. In rural areas of the United States, organic aerosols can be a significant part of the aerosol load in the atmosphere. However, the extent to which gas-phase biogenic emissions contribute to this organic load is poorly understood. Such an understanding is crucial to properly apportion the effect of anthropogenic emissions in these rural areas that are sometimes dominated by biogenic sources. To help gain insight on the effect of biogenic emissions on particle concentrations in rural areas, we have been conducting a field measurement program at the University of California Blodgett Forest Research Facility. The field location includes has been used to acquire an extensive suite of measurements resulting in a rich data set, containing a combination of aerosol, organic, and nitrogenous species concentration and meteorological data with a long time record. The field location was established in 1997 by Allen Goldstein, a professor in the Department of Environmental Science, Policy and Management at the University of California at Berkeley to study interactions between the biosphere and the atmosphere. The Goldstein group focuses on measurements of concentrations and whole ecosystem biosphere-atmosphere fluxes for volatile organic compounds (VOC's), oxygenated volatile organic compounds (OVOC's), ozone, carbon dioxide, water vapor, and energy. Another important collaborator at the Blodgett field location is Ronald Cohen, a professor in the Chemistry Department at the University of California at Berkeley. At the Blodgett field location, his group his group performs measurements of the concentrations of important gas phase nitrogen compounds. Experiments have been ongoing at the Blodgett field site since the fall of 2000, and have included portions of the summer and fall of 2001, 2002, and 2003. Analysis of both the gas and particle phase data from the year 2000 show that the particle loading at the site correlates with both biogenic precursors emitted in the forest and anthropogenic precursors advected to the site from Sacramento and the Central Valley of California. Thus the particles at the site are affected by biogenic processing of anthropogenic emissions. Size distribution measurements show that the aerosol at the site has a geometric median diameter of approximately 100 nm. On many days, in the early afternoon, growth of nuclei mode particles (<20 nm) is also observed. These growth events tend to occur on days with lower average temperatures, but are observed throughout the summer. Analysis of the size resolved data for these growth events, combined with typical measured terpene emissions, show that the particle mass measured in these nuclei mode particles could come from oxidation products of biogenic emissions, and can serve as a significant route for SOA partitioning into the particle phase. During periods of each year, the effect of emissions for forest fires can be detected at the Blodgett field location. During the summer of 2002 emissions from the Biscuit fire, a large fire located in Southwest Oregon, was detected in the aerosol data. The results show that increases in particle scattering can be directly related to increased black carbon concentration and an appearance of a larger mode in the aerosol size distribution. These results show that emissions from fires can have significant impact on visibility over large distances. The results also reinforce the view that forest fires can be a significant source of black carbon in the atmosphere, which has important climate and visibility. Continuing work with the 2002 data set, particularly the combination of the aerosol and gas phase data, will continue to provide important information o

Lunden, Melissa; Black, Douglas; Brown, Nancy

2004-02-01T23:59:59.000Z

359

-ray Irradiation Enhanced Boron-10 Compound Accumulation in Murine Tumors  

Science Journals Connector (OSTI)

......gamma-ray Irradiation Enhanced Boron-10 Compound Accumulation in Murine Tumors...effects of gamma-ray irradiation on boron-10 compound accumulation in a murine...sodium) administration. Then, the boron-10 concentrations in tumor and normal......

Yong Liu; Kenji Nagata; Shin-ichiro Masunaga; Minoru Suzuki; Genro Kashino; Yuko Kinashi; Hiroki Tanaka; Yoshinori Sakurai; Akira Maruhashi; Koji Ono

2009-11-01T23:59:59.000Z

360

A knowledge base of the chemical compounds of intermediary metabolism  

Science Journals Connector (OSTI)

......Press August 1992 other ORIGINAL PAPERS A knowledge base of the chemical compounds of intermediary...paper describes a publicly available knowledge base of the chemical compounds involved...consider the motivations for constructing a knowledge base of metabolic compounds, the methodology......

Peter D. Karp

1992-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "organic compounds tetraphenylborate" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Method for conversion of .beta.-hydroxy carbonyl compounds  

DOE Patents [OSTI]

A process is disclosed for conversion of salts of .beta.-hydroxy carbonyl compounds forming useful conversion products including, e.g., .alpha.,.beta.-unsaturated carbonyl compounds and/or salts of .alpha.,.beta.-unsaturated carbonyl compounds. Conversion products find use, e.g., as feedstock and/or end-use chemicals.

Lilga, Michael A. (Richland, WA); White, James F. (Richland, WA); Holladay, Johnathan E. (Kennewick, WA); Zacher, Alan H. (Kennewick, WA); Muzatko, Danielle S. (Kennewick, WA); Orth, Rick J. (Kennewick, WA)

2010-03-30T23:59:59.000Z

362

Ternary compound electrode for lithium cells  

DOE Patents [OSTI]

Lithium-based cells are promising for applications such as electric vehicles and load-leveling for power plants since lithium is very electropositive and of light weight. One type of lithium-based cell utilizes a molten salt electrolyte and normally is operated in the temperature range of about 350 to 500/sup 0/C. Such high temperature operation accelerates corrosion problems. The present invention provides an electrochemical cell in which lithium is the electroactive species. The cell has a positive electrode which includes a ternary compound generally represented as Li-M-O, wherein M is a transition metal. Corrosion of the inventive cell is considerably reduced.

Raistrick, I.D.; Godshall, N.A.; Huggins, R.A.

1980-07-30T23:59:59.000Z

363

Vapor deposition of tantalum and tantalum compounds  

SciTech Connect (OSTI)

Tantalum, and many of its compounds, can be deposited as coatings with techniques ranging from pure, thermal chemical vapor deposition to pure physical vapor deposition. This review concentrates on chemical vapor deposition techniques. The paper takes a historical approach. The authors review classical, metal halide-based techniques and current techniques for tantalum chemical vapor deposition. The advantages and limitations of the techniques will be compared. The need for new lower temperature processes and hence new precursor chemicals will be examined and explained. In the last section, they add some speculation as to possible new, low-temperature precursors for tantalum chemical vapor deposition.

Trkula, M. [Los Alamos National Lab., NM (United States). Materials Science and Technology Div.

1996-04-01T23:59:59.000Z

364

Organization | Department of Energy  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Organization Organization Organization View Office of Management Organization Chart in PDF format. Office of Resource Management and Planning The Office of Resource Management and Planning provides the leadership and centralized management and direction of the Office of Management (MA) planning, budgeting, financial, human resources, and program execution processes; ensures that these processes are effective, and fully integrated and consistent with the Department-wide processes and requirements. Office of Aviation Management The Department of Energy, Aviation Program is the management function for all fleet aircraft and contracted aviation services for the Department. The program and its management personnel operate world-wide. To take advantage of the best communications and information services available, we have

365

Organic solar cell optimizations  

Science Journals Connector (OSTI)

This paper presents recent experimental and theoretical approaches for optimizing organic solar cell efficiencies in both space and energy/time...D/A...) blend film, a corresponding –DBAB- block copolymer film ex...

S. Sun; Z. Fan; Y. Wang; J. Haliburton

2005-03-01T23:59:59.000Z

366

Organization | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Us » Organization Us » Organization Organization The organizational structure of the Office of Policy and International Affairs is as follows: *Office of Resource Management (PI-10) *Office of the Deputy Assistant Secretary for Eurasia, Africa and the Middle East (PI-20) *Office of the Deputy Assistant Secretary for Asia, Europe, and the Americas (PI-30) *Office of the Deputy Assistant Secretary for Policy Analysis (PI-40) *Office of the Deputy Assistant Secretary for Climate Change Policy and Technology (PI-50) The organizational chart can be found here. A brief synopsis of each sub-organization follows. Office of Resource Management (PI-10) The mission of the Office of Resource Management is to support the Office of Policy and International Affairs (PI) by: (1) minimizing the

367

Organics Verification Study for Sinclair and Dyes Inlets, Washington  

SciTech Connect (OSTI)

Sinclair and Dyes Inlets near Bremerton, Washington, are on the State of Washington 1998 303(d) list of impaired waters because of fecal coliform contamination in marine water, metals in sediment and fish tissue, and organics in sediment and fish tissue. Because significant cleanup and source control activities have been conducted in the inlets since the data supporting the 1998 303(d) listings were collected, two verification studies were performed to address the 303(d) segments that were listed for metal and organic contaminants in marine sediment. The Metals Verification Study (MVS) was conducted in 2003; the final report, Metals Verification Study for Sinclair and Dyes Inlets, Washington, was published in March 2004 (Kohn et al. 2004). This report describes the Organics Verification Study that was conducted in 2005. The study approach was similar to the MVS in that many surface sediment samples were screened for the major classes of organic contaminants, and then the screening results and other available data were used to select a subset of samples for quantitative chemical analysis. Because the MVS was designed to obtain representative data on concentrations of contaminants in surface sediment throughout Sinclair Inlet, Dyes Inlet, Port Orchard Passage, and Rich Passage, aliquots of the 160 MVS sediment samples were used in the analysis for the Organics Verification Study. However, unlike metals screening methods, organics screening methods are not specific to individual organic compounds, and are not available for some target organics. Therefore, only the quantitative analytical results were used in the organics verification evaluation. The results of the Organics Verification Study showed that sediment quality outside of Sinclair Inlet is unlikely to be impaired because of organic contaminants. Similar to the results for metals, in Sinclair Inlet, the distribution of residual organic contaminants is generally limited to nearshore areas already within the actively managed Puget Sound Naval Shipyard and Intermediate Maintenance Facility Superfund Site, where further source-control actions and monitoring are under way.

Kohn, Nancy P.; Brandenberger, Jill M.; Niewolny, Laurie A.; Johnston, Robert K.

2006-09-28T23:59:59.000Z

368

XPS study of Eu(III) coordination compounds: Core levels binding energies in solid mixed-oxo-compounds EumXxOy  

Science Journals Connector (OSTI)

Literature is relatively sparse on XPS studies of europium compounds: it is essentially restricted to metallic compounds (EuM5, in which M is a transition metal) or to simple oxides. While particular interest have been devoted to understanding physical phenomenon in the beginning of “shake-down” and “shake-up” satellites evidenced on core-level regions of the lanthanides, few information on absolute binding energies (BE) was available. This paper reports an XPS binding energy data base for europium(III) compounds, in which Eu cation have various chemical environments: simple oxide Eu2O3, Eu mixed oxides with organic oxalate, acetylacetonate or inorganic sulfate, nitrate, carbonate ligands. The values of core-level BE (O1s, Eu3d and Eu4d) and the characteristics of shake-down satellites of Eu3d are reported, and their variations are attributed to ionicity/covalency changes. Such interpretation was already published for Group A mixed oxides and zeolites. These data are needed for determining Eu(III) species sorbed onto minerals in the presence of various ligands in the framework of retention studies for assessing the safety of future nuclear waste disposals.

F. Mercier; C. Alliot; L. Bion; N. Thromat; P. Toulhoat

2006-01-01T23:59:59.000Z

369

Organic Thin Film Magnet of Nickel-Tetracyanoethylene  

SciTech Connect (OSTI)

Hybrid organic-inorganic materials consisting of a transition metal and an organic compound, TCNE form a unique class of organic magnets denoted by M(TCNE){sub x}(where M = transition metals, and TCNE = tetracyanoethylene). The organic thin film magnet of nickel-tetracyanoethylene, Ni(TCNE){sub x} is deposited on sputtered clean gold substrate using the physical vapor deposition (PVD) technique under ultra high vacuum (UHV) conditions at room temperature. X-ray photoelectron spectroscopy (XPS) has been used to investigate chemical and electronic properties of Ni(TCNE){sub x} film. XPS derived film thickness and stoichiometry are found to be 6 nm and 1:2 ratio between Ni and TCNE resulting Ni(TCNE){sub 2} film, respectively. In addition, XPS results do not show any signature of the presence of pure metallic Ni or Ni-clustering in the Ni(TCNE){sub x} film.

Bhatt, Pramod; Yusuf, S. M. [Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085 (India)

2011-07-15T23:59:59.000Z

370

Geothermal Drilling Organization  

SciTech Connect (OSTI)

The Geothermal Drilling Organization (GDO), founded in 1982 as a joint Department of Energy (DOE)-Industry organization, develops and funds near-term technology development projects for reducing geothermal drilling costs. Sandia National Laboratories administers DOE funds to assist industry critical cost-shared projects and provides development support for each project. GDO assistance to industry is vital in developing products and procedures to lower drilling costs, in part, because the geothermal industry is small and represents a limited market.

Sattler, A.R.

1999-07-07T23:59:59.000Z

371

Rankine cycle power plant with improved organic working fluid  

SciTech Connect (OSTI)

In a Rankine cycle power plant having a boiler for vaporizing an organic working fluid which is applied to a turbine in which vaporized working fluid produced by the boiler expands and produces work, a condenser for condensing expanded vaporized working fluid exhausted by the turbine and producing condensate, and means for returning the condensate to the boiler, the improvement is described comprising: (a) operating the boiler so that the organic fluid vaporizes at substantially constant pressure and a temperature not exceeding 400/sup 0/C; (b) applying only vaporized working fluid to the turbine; and (c) using as the working fluid, a compound selected from the group consisting of bicyclic hydrocarbons, substituted bicyclic aromatic hydrocarbons, heterobicyclic aromatic hydrocarbons, substituted heterobicyclic aromatic hydrocarbons, bicyclic compounds where one ring is aromatic and the other condensed ring is nonaromatic, and their mixtures.

Yogev, A.; Mahlab, D.

1988-08-02T23:59:59.000Z

372

Electrodes mitigating effects of defects in organic electronic devices  

DOE Patents [OSTI]

A compound electrode for organic electronic devices comprises a thin first layer of a first electrically conducting material and a second electrically conducting material disposed on the first layer. In one embodiment, the second electrically conducting material is formed into a plurality of elongated members. In another embodiment, the second material is formed into a second layer. The elongated members or the second layer has a thickness greater than that of the first layer. The second layer is separated from the first layer by a conducting material having conductivity less than at least the material of the first layer. The compound electrode is capable of mitigating adverse effects of defects, such as short circuits, in the construction of the organic electronic devices, and can be included in light-emitting or photovoltaic devices.

Heller, Christian Maria Anton (Albany, NY)

2008-05-06T23:59:59.000Z

373

Compound Refractive Lenses for Thermal Neutron Applications  

SciTech Connect (OSTI)

This project designed and built compound refractive lenses (CRLs) that are able to focus, collimate and image using thermal neutrons. Neutrons are difficult to manipulate compared to visible light or even x rays; however, CRLs can provide a powerful tool for focusing, collimating and imaging neutrons. Previous neutron CRLs were limited to long focal lengths, small fields of view and poor resolution due to the materials available and manufacturing techniques. By demonstrating a fabrication method that can produce accurate, small features, we have already dramatically improved the focal length of thermal neutron CRLs, and the manufacture of Fresnel lens CRLs that greatly increases the collection area, and thus efficiency, of neutron CRLs. Unlike a single lens, a compound lens is a row of N lenslets that combine to produce an N-fold increase in the refraction of neutrons. While CRLs can be made from a variety of materials, we have chosen to mold Teflon lenses. Teflon has excellent neutron refraction, yet can be molded into nearly arbitrary shapes. We designed, fabricated and tested Teflon CRLs for neutrons. We demonstrated imaging at wavelengths as short as 1.26 ? with large fields of view and achieved resolution finer than 250 ?m which is better than has been previously shown. We have also determined designs for Fresnel CRLs that will greatly improve performance.

Gary, Charles K.

2013-11-12T23:59:59.000Z

374

Recent developments in filamentary compound superconductors  

SciTech Connect (OSTI)

Filamentary A15 Compound superconductors are indispensable for the generation of magnetic fields over 10 T at 4.2 K. The fabrication of Nb/sub 3/ Sn and Va/sub 3/Ga wires is based on the composite process in which a composite of niobium or vanadium cores in a Cu-Sn or Cu-Ca solid-solution alloy matrix is fabricated and then heat-treated. The addition of a third element, such as aluminum, titanium, hafnium, or magnesium, to the niobium or vanadium core affects the transition temperature and the upper critical field and produces fine Nb/sub 3/ Sn grains in an A15 compound. Other effects resulting from such an addition, in areas such as critical current densities in high magnetic fields and stress, are analyzed. Use of the in situ technique for the fabrication of filamentary A15 superconductors as an alternative to the composite process is described. The fabrication and potential of multifilamentary C15 V/sub 2/ (Hf or Zr) wires as a high-field superconductor for magnetic fusion reactor use are presented. Graphs and data analyses are included.

Tachikawa, I.T.

1982-01-01T23:59:59.000Z

375

Materials Chemistry and Performance of Silicone-Based Replicating Compounds.  

SciTech Connect (OSTI)

Replicating compounds are used to cast reproductions of surface features on a variety of materials. Replicas allow for quantitative measurements and recordkeeping on parts that may otherwise be difficult to measure or maintain. In this study, the chemistry and replicating capability of several replicating compounds was investigated. Additionally, the residue remaining on material surfaces upon removal of replicas was quantified. Cleaning practices were tested for several different replicating compounds. For all replicating compounds investigated, a thin silicone residue was left by the replica. For some compounds, additional inorganic species could be identified in the residue. Simple solvent cleaning could remove some residue.

Brumbach, Michael T.; Mirabal, Alex James; Kalan, Michael; Trujillo, Ana B; Hale, Kevin

2014-11-01T23:59:59.000Z

376

Competitive adsorption, displacement, and transport of organic matter on iron oxide: II. Displacement and transport  

SciTech Connect (OSTI)

The competitive interactions between organic matter compounds and mineral surfaces are poorly understood, yet these interactions may play a significant role in the stability and co-transport of mineral colloids and/or environmental contaminants. In this study, the processes of competitive adsorption, displacement, and transport of Suwannee River natural organic matter (SR-NOM) are investigated with several model organic compounds in packed beds of iron oxide-coated quartz columns. Results demonstrated that strongly-binding organic compounds are competitively adsorbed and displace those weakly-bound organic compounds along the flow path. Among the four organic compounds studied, polyacrylic acid (PAA) appeared to be the most competitive, whereas SR-NOM was more competitive than phthalic and salicylic acids. A diffuse adsorption and sharp desorption front (giving an appearance of irreversible adsorption) of the SR-NOM breakthrough curves are explained as being a result of the competitive time-dependent adsorption and displacement processes between different organic components within the SR-NOM. The stability and transport of iron oxide colloids varied as one organic component competitively displaces another. Relatively large quantities of iron oxide colloids are transported when the more strongly-binding PAA competitively displaces the weakly-binding SR-NOM or when SR-NOM competitively displaces phthalic and salicylic acids. Results of this study suggest that the chemical composition and hence the functional behavior of NOM (e.g., in stabilizing mineral colloids and in complexing contaminants) can change along its flow path as a result of the dynamic competitive interactions between heterogeneous NOM subcomponents. Further studies are needed to better define and quantify these NOM components as well as their roles in contaminant partitioning and transport. 37 refs., 10 figs.

Gu, B; Mehlhorn, T.L.; Liang, Liyuan [Oak Ridge National Lab., TN (United States)] [and others] [Oak Ridge National Lab., TN (United States); and others

1996-08-01T23:59:59.000Z

377

Organic modification of carbon nanotubes  

Science Journals Connector (OSTI)

The organic modification of carbon nanotubes is a novel research field being developed ... and newest progress of organic modification of carbon nanotubes are reviewed from two aspects: organic covalent modificat...

Luqi Liu; Zhixin Guo; Liming Dai; Daoben Zhu

2002-03-01T23:59:59.000Z

378

Carbon Sequestration in Organic Farming  

Science Journals Connector (OSTI)

Organic farming has been developed as a new mode of farming vs. conventional farming. Evidence showed that organic farming management can well maintain the soil carbon up to 2–3 times higher in organic matter ...

Raymond Liu; Jianming M. Xu; C. Edward Clapp

2013-01-01T23:59:59.000Z

379

Formation of assimilable organic carbon (AOC) and specific natural organic matter (NOM) fractions during ozonation of phytoplankton  

Science Journals Connector (OSTI)

Ozonation of natural surface water increases the concentration of oxygen-containing low molecular weight compounds. Many of these compounds support microbiological growth and as such are termed assimilable organic carbon (AOC). Phytoplankton can contribute substantially to the organic carbon load when surface water is used as source for drinking water treatment. We have investigated dissolved organic carbon (DOC) formation from the ozonation of a pure culture of Scenedesmus vacuolatus under defined laboratory conditions, using a combination of DOC fractionation, analysis of selected organic acids, aldehydes and ketones, and an AOC bioassay. Ozonation of algae caused a substantial increase in the concentration of DOC and AOC, notably nearly instantaneously upon exposure to ozone. As a result of ozone exposure the algal cells shrunk, without disintegrating entirely, suggesting that DOC from the cell cytoplasm leaked through compromised cell membranes. We have further illustrated that the specific composition of newly formed AOC (as concentration of organic acids, aldehydes and ketones) in ozonated lake water differed in the presence and absence of additional algal biomass. It is therefore conceivable that strategies for the removal of phytoplankton before pre-ozonation should be considered during the design of drinking water treatment installations, particularly when surface water is used.

Frederik Hammes; Sébastien Meylan; Elisabeth Salhi; Oliver Köster; Thomas Egli; Urs von Gunten

2007-01-01T23:59:59.000Z

380

U.S. Department of Energy Categorical Exclusion Determination Form  

Broader source: Energy.gov (indexed) [DOE]

Copper Catalyzed peroxide Destruction of Tank 48H Tetraphenylborate Wastes (non-rad) Copper Catalyzed peroxide Destruction of Tank 48H Tetraphenylborate Wastes (non-rad) Savannah River Site Aiken/Aiken/South Carolina At the Savannah River Site (SRS), Tank 48H currently holds approximately 240,000 gallons of slurry which contains potassium and cesium tetraphenylborate (KTPB and CsTPB). Personnel must remove or destroy the organics before the tank space can be utilized or closed. SRR and SRNL are tasked with studying the decomposition of TPB slurries via the use of catalysts and hydrogen peroxide. B3.6 - Small-scale research and development, laboratory operations, and pilot projects Andrew R. Grainger Digitally signed by Andrew R. Grainger DN: cn=Andrew R. Grainger, o=DOE-SR, ou=EQMD, email=drew.grainger@srs.gov, c=US Date: 2012.01.20 15:28:59 -05'00'

Note: This page contains sample records for the topic "organic compounds tetraphenylborate" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

U.S. Department of Energy Categorical Exclusion Determination Form  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Copper Catalyzed Peroxide Destruction of Tank 48H Tetraphenylborate Wastes (rad) Copper Catalyzed Peroxide Destruction of Tank 48H Tetraphenylborate Wastes (rad) Savannah River Site Aiken/Aiken/South Carolina At the Savannah River Site (SRS), Tank 48H currently holds approximately 240,000 gallons of slurry which contains potassium and cesium tetraphenylborate (KTPB and CsTPB). Personnel must remove or destroy the organics before the tank space can be utilized or closed. SRR and SRNL are tasked with studying the decomposition of TPB slurries via the use of catalysts and hydrogen peroxide. B3.6 - Small-scale research and development, laboratory operations, and pilot projects Andrew R. Grainger Digitally signed by Andrew R. Grainger DN: cn=Andrew R. Grainger, o=DOE-SR, ou=EQMD, email=drew.grainger@srs.gov, c=US Date: 2012.01.24 17:41:53 -05'00'

382

U.S. Department of Energy Categorical Exclusion Determination Form  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Copper Catalyzed peroxide Destruction of Tank 48H Tetraphenylborate Wastes (non-rad) Copper Catalyzed peroxide Destruction of Tank 48H Tetraphenylborate Wastes (non-rad) Savannah River Site Aiken/Aiken/South Carolina At the Savannah River Site (SRS), Tank 48H currently holds approximately 240,000 gallons of slurry which contains potassium and cesium tetraphenylborate (KTPB and CsTPB). Personnel must remove or destroy the organics before the tank space can be utilized or closed. SRR and SRNL are tasked with studying the decomposition of TPB slurries via the use of catalysts and hydrogen peroxide. B3.6 - Small-scale research and development, laboratory operations, and pilot projects Andrew R. Grainger Digitally signed by Andrew R. Grainger DN: cn=Andrew R. Grainger, o=DOE-SR, ou=EQMD, email=drew.grainger@srs.gov, c=US Date: 2012.01.20 15:28:59 -05'00'

383

U.S. Department of Energy Categorical Exclusion Determination Form  

Broader source: Energy.gov (indexed) [DOE]

Copper Catalyzed Peroxide Destruction of Tank 48H Tetraphenylborate Wastes (rad) Copper Catalyzed Peroxide Destruction of Tank 48H Tetraphenylborate Wastes (rad) Savannah River Site Aiken/Aiken/South Carolina At the Savannah River Site (SRS), Tank 48H currently holds approximately 240,000 gallons of slurry which contains potassium and cesium tetraphenylborate (KTPB and CsTPB). Personnel must remove or destroy the organics before the tank space can be utilized or closed. SRR and SRNL are tasked with studying the decomposition of TPB slurries via the use of catalysts and hydrogen peroxide. B3.6 - Small-scale research and development, laboratory operations, and pilot projects Andrew R. Grainger Digitally signed by Andrew R. Grainger DN: cn=Andrew R. Grainger, o=DOE-SR, ou=EQMD, email=drew.grainger@srs.gov, c=US Date: 2012.01.24 17:41:53 -05'00'

384

IUPAC-NIST Solubility Data Series 71. Nitromethane with Water or Organic Solvents: Binary Systems  

Science Journals Connector (OSTI)

The mutual solubilities and liquid–liquid equilibrium of nitromethane binary systems with liquidsolvents are reviewed. The solvents include water inorganic compounds and a variety of organic compounds as hydrocarbons halogenated hydrocarbons alcohols acids esters and nitrogen compounds. A total 474 systems published through 1993 are compiled. For 39 systems sufficient data were available to allow critical evaluation. All data are expressed as mass and mole fractions as well as the originally reported units. Similar reviews of gas liquid and solid solubilities for other systems were published in the frame of Solubility Data Series.

Valerii P. Sazonov; Kenneth N. Marsh; Glenn T. Hefter

2000-01-01T23:59:59.000Z

385

Introduction to Organic Solar Cells  

Science Journals Connector (OSTI)

Organic solar cells (OSCs) have attracted strong attention in ... the basics of OSCs. The basics of organic semiconductors are first described. We then provide...

Dixon D. S. Fung; Wallace C. H. Choy

2013-01-01T23:59:59.000Z

386

Radiological Control Programs for Special Tritium Compounds  

Broader source: Energy.gov (indexed) [DOE]

84-2004 84-2004 SEPTEMBER 2004 CHANGE NOTICE NO. 1 Date June 2006 DOE HANDBOOK RADIOLOGICAL CONTROL PROGRAMS FOR SPECIAL TRITIUM COMPOUNDS U.S. Department of Energy AREA OCSH Washington, D.C. 20585 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. NOT MEASUREMENT SENSITIVE ii Table of Changes Page Change 67 (near bottom) In row 1, column 2 of the table titled "dosimetric properties" 6 mrem was changed to 6 x 10 -2 mrem Available on the Department of Energy Technical Standards Program Web site at http://tis.eh.doe.gov/techstds/ DOE-HDBK-1184-2004 iii Foreword The Department of Energy (DOE) and its predecessor agencies have undertaken a wide variety

387

Radiological Control Programs for Special Tritium Compounds  

Broader source: Energy.gov (indexed) [DOE]

F 1325.8 F 1325.8 (08-93) United States Government Department of Energy memorandum DATE: May 11, 2006 REPLY TO EH-52:JRabovsky:3-2 135 ATTN OF: APPROVAL OF CHANGE NOTICE 1 TO DEPARTMENT OF ENERGY (DOE) SUBJECT. HANDBOOK 1184-2004, RADIOLOGICAL CONTROL PROGRAMS FOR SPECIAL TRITIUM COMPOUNDS TO: Dennis Kubicki, EH-24 Technical Standards Manager This memorandum forwards the subject Change Notice 1 to DOE Handbook, DOE- HDBK- 1184-2004, which has approved for publication and distribution. The change to this handbook consists of a correction to the rule of thumb, listed in Appendix A, for converting the uptake of tritium oxide into radiation dose. A factor of 1/100 was inadvertently omitted from this rule of thumb when this DOE Handbook was originally published. This change does not affect the references, is not of a technical nature, and

388

Electric Resistivity of Interstitial Compounds of Graphite  

Science Journals Connector (OSTI)

Assuming that the formation of interstitial compounds is accompanied by creation of excess holes in the otherwise full band of graphite it is shown that a linear energy?momentum relation at the Brillouin zone corners is incapable of explaining the decrease of the electric resistance with oxidation. It appears that for a more general model the decrease in relative resistance should be independent of temperature for large oxidations if suitable corrections for the initial conditions are made. Data for polycrystallinegraphite corrected for the existence of an energy gap and of excess holes in the untreated material give curves which converge for higher oxidation with the curve for natural graphite. Discussion of the low temperature properties of graphite leads to the conclusion that large graphite crystals possess slightly overlapping zones.

S. Mrozowski

1953-01-01T23:59:59.000Z

389

ARM - ARM Organization  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

ARMARM Organization ARMARM Organization Laboratory Partners Nine DOE national laboratories share the responsibility of managing and operating the ARM Climate Research Facility. ARM Group Links Science Board SISC Charter Data Archive Data Management Facility Data Quality Program Engineering Support External Data Center ARM Organization The ARM Climate Research Facility operates field research sites around the world for global change research. Three primary locations-Southern Great Plains, Tropical Western Pacific, North Slope of Alaska-plus aircraft and the portable ARM Mobile Facilities-are heavily instrumented to collect massive amounts of atmospheric measurements needed to create data files. Scientists use these data to study the effects and interactions of sunlight, clouds, and radiant energy, as well as interdisciplinary research

390

Organic aerogel microspheres  

DOE Patents [OSTI]

Organic aerogel microspheres which can be used in capacitors, batteries, thermal insulation, adsorption/filtration media, and chromatographic packings, having diameters ranging from about 1 micron to about 3 mm. The microspheres can be pyrolyzed to form carbon aerogel microspheres. This method involves stirring the aqueous organic phase in mineral oil at elevated temperature until the dispersed organic phase polymerizes and forms nonsticky gel spheres. The size of the microspheres depends on the collision rate of the liquid droplets and the reaction rate of the monomers from which the aqueous solution is formed. The collision rate is governed by the volume ratio of the aqueous solution to the mineral oil and the shear rate, while the reaction rate is governed by the chemical formulation and the curing temperature.

Mayer, Steven T. (San Leandro, CA); Kong, Fung-Ming (Pleasanton, CA); Pekala, Richard W. (Pleasant Hill, CA); Kaschmitter, James L. (Pleasanton, CA)

1999-01-01T23:59:59.000Z

391

Sorption of organic gases in residential bedrooms and bathrooms  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Sorption of organic gases in residential bedrooms and bathrooms Sorption of organic gases in residential bedrooms and bathrooms Title Sorption of organic gases in residential bedrooms and bathrooms Publication Type Conference Paper LBNL Report Number LBNL-56787 Year of Publication 2005 Authors Singer, Brett C., Alfred T. Hodgson, Toshifumi Hotchi, Katherine Y. Ming, Richard G. Sextro, Emily E. Wood, and Nancy J. Brown Conference Name Proceedings of the 10th International Conference on Indoor Air Quality and Climate - Indoor Air 2005 Volume 2(9) Publisher Tsinghua University Press Conference Location Beijing, China Abstract Experiments were conducted to characterize organic gas sorption in residential bedrooms (n=4), bathrooms (n=2), and a furnished test chamber. Rooms were studied "as-is" with material surfaces and furnishings unaltered. Surface materials were characterized and areas quantified. Experiments included rapid volatilization of a volatile organic compound (VOC) mixture with the room closed and sealed for a 5-h Adsorb phase, followed by 30-min Flush and 2-h closed-room Desorb phases. The mixture included n-alkanes, aromatics, glycol ethers, 2-ethyl-1-hexanol, dichlorobenzene, and organophosphorus compounds. Measured gas-phase concentrations were fit to three variations of a mathematical model that considers sorption occurring at one surface sink and one potential embedded sink. The 2-parameter sink model tracked measurements for most compounds, but improved fits were obtained for some VOCs with a 3-parameter sink-diffusion or a 4-parameter two-sink model. Sorptive partitioning and initial adsorption rates increased with decreasing vapour pressure within each chemical class.

392

JGI - Organization Structure  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Organization Structure Organization Structure clickable organizational chart Dan Rokhsar Genomic Technologies Department Nikos Kyrpides Jeremy Schmutz Plant Program Metagenome Program Igor Grigoriev Fungal Program LBNL Director P. Alivisatos Scientific Advisory Committee JGI Director, Eddy Rubin Deputy Director of Science Programs, Jim Bristow S. Canon NERSC JGI Support Team Ray Turner Operations Department Prokaryote Super Program Genomic Technologies Department Len Pennacchio Microbial Program Tanja Woyke Dan Rokhsar Eukaryote Super Program Susannah Tringe Chia-lin Wei Executive Management DOE JGI Director: Eddy Rubin Deputy of Science: Jim Bristow Deputy of Operations: Ray Turner Deputy of Genomic Technologies: Len Pennacchio Departments Operations Deputy of Operations Ray Turner

393

Sludge organics bioavailability  

SciTech Connect (OSTI)

Concern over the bioavailability of toxic organics that can occur in municipal sludges threatens routine land application of sludge. Available data, however, show that concentrations of priority organics in normal sludges are low. Sludges applied at agronomic rates yield chemical concentrations in soil-sludge mixtures 50 to 100 fold lower. Plant uptake at these pollutant concentrations (and at much higher concentrations) is minimal. Chemicals are either (1) accumulated at extremely low levels (PCBs), (2) possibly accumulated, but then rapidly metabolized within plants to extremely low levels (DEHP), or (3) likely degraded so rapidly in soil that only minor contamination occurs (PCP and 2,4-DNP).

Eiceman, G.E.; Bellin, C.A.; Ryan, J.A.; O'Connor, G.A.

1991-01-01T23:59:59.000Z

394

CCPPolicyBriefing Organization  

E-Print Network [OSTI]

BACKGROUND · Modern cartels are well-organized with sophisticated organizational structures. Disclosing to confidentiality, details on the organizational form of cracked cartels are rarely disclosed. · Theoretical to facilitating collusion. · Moreover, the efficiency gains of delegation in facilitating collusion can

Feigon, Brooke

395

REPRESENTATIONS & CERTIFICATIONS ORGANIZATION: PHONE  

E-Print Network [OSTI]

or Agreement. 1. Labor Surplus Area: Offeror ___ will ___ will not, perform the work in an area classified labor surplus area; or (3) ___ substantial labor surplus area. 2. Type of Business Organization: Offeror Business Concern", means a small business concern that (1) is at least 51 percent unconditionally owned

Groppi, Christopher

396

Organic solvent topical report  

SciTech Connect (OSTI)

This report is the technical basis for the accident and consequence analyses used in the Hanford Tank Farms Basis for Interim Operation. The report also contains the scientific and engineering information and reference material needed to understand the organic solvent safety issue. This report includes comments received from the Chemical Reactions Subcommittee of the Tank Advisory Panel.

Cowley, W.L.

1998-04-30T23:59:59.000Z

397

Treatment of sludge containing nitro-aromatic compounds in reed-bed mesocosms - Water, BOD, carbon and nutrient removal  

SciTech Connect (OSTI)

Highlights: Black-Right-Pointing-Pointer It is necessary to improve existing and develop new sludge management techniques. Black-Right-Pointing-Pointer One method is dewatering and biodegradation of compounds in constructed wetlands. Black-Right-Pointing-Pointer The result showed high reduction of all tested parameters after treatment. Black-Right-Pointing-Pointer Plants improve degradation and Phragmites australis is tolerant to xenobiotics. Black-Right-Pointing-Pointer The amount of sludge could be reduced by 50-70%. - Abstract: Since the mid-1970s, Sweden has been depositing 1 million ton d.w sludge/year, produced at waste water treatment plants. Due to recent legislation this practice is no longer a viable method of waste management. It is necessary to improve existing and develop new sludge management techniques and one promising alternative is the dewatering and treatment of sludge in constructed wetlands. The aim of this study was to follow reduction of organic carbon, BOD and nutrients in an industrial sludge containing nitro-aromatic compounds passing through constructed small-scale wetlands, and to investigate any toxic effect such as growth inhibition of the common reed Phragmites australis. The result showed high reduction of all tested parameters in all the outgoing water samples, which shows that constructed wetlands are suitable for carbon and nutrient removal. The results also showed that P. australis is tolerant to xenobiotics and did not appear to be affected by the toxic compounds in the sludge. The sludge residual on the top of the beds contained low levels of organic carbon and is considered non-organic and could therefore be landfilled. Using this type of secondary treatment method, the amount of sludge could be reduced by 50-70%, mainly by dewatering and biodegradation of organic compounds.

Gustavsson, L., E-mail: Lillemor.Gustavsson@karlskogaenergi.se [Karlskoga Environment and Energy Company, Karlskoga (Sweden); Engwall, M. [Karlskoga Environment and Energy Company, Karlskoga (Sweden); School of Science and Technology, MTM - Man-Technology-Environment, Oerebro University, 701 82 Oerebro (Sweden)

2012-01-15T23:59:59.000Z

398

Novel Aryne Chemistry in Organic Synthesis  

SciTech Connect (OSTI)

Arynes are among the most intensively studied systems in chemistry. However, many aspects of the chemistry of these reactive intermediates are not well understood yet and their use as reagents in synthetic organic chemistry has been somewhat limited, due to the harsh conditions needed to generate arynes and the often uncontrolled reactivity exhibited by these species. Recently, o-silylaryl triflates, which can generate the corresponding arynes under very mild reaction conditions, have been found very useful in organic synthesis. This thesis describes several novel and useful methodologies by employing arynes, which generate from o-silylaryl triflates, in organic synthesis. An efficient, reliable method for the N-arylation of amines, sulfonamides and carbamates, and the O-arylation of phenols and carboxylic acids is described in Chapter 1. Amines, sulfonamides, phenols, and carboxylic acids are good nucleophiles, which can react with arynes generated from a-silylaryl triflates to afford the corresponding N- and O-arylated products in very high yields. The regioselectivity of unsymmetrical arynes has also been studied. A lot of useful, functional groups can tolerate our reaction conditions. Carbazoles and dibenzofurans are important heteroaromatic compounds, which have a variety of biological activities. A variety of substituted carbazoles and dibenzofwans are readily prepared in good to excellent yields starting with the corresponding o-iodoanilines or o-iodophenols and o-silylaryl triflates by a treatment with CsF, followed by a Pd-catalyzed cyclization, which overall provides a one-pot, two-step process. By using this methodology, the carbazole alkaloid mukonine has been concisely synthesized in a very good yield. Insertion of an aryne into a {sigma}-bond between a nucleophile and an electrophile (Nu-E) should potentially be a very beneficial process from the standpoint of organic synthesis. A variety of substituted ketones and sulfoxides have been synthesized in good yields via the intermolecular C-N {sigma}-bond addition of amides and S-N {sigma}-bond addition of sulfinamides to arynes under mild reaction conditions. The indazole moiety is a frequently found subunit in drug substances with important biological activities. Indazole analogues have been readily synthesized under mild reaction conditions by the [3+2] cycloaddition of a variety of diazo compounds with o-silylaryl triflates in the presence of CsF or TBAF. Polycyclic aromatic and heteroaromatic hydrocarbons have been synthesized in high yields by two different processes involving the Pd-catalyzed annulation of arynes. Both processes appear to involve the catalytic, stepwise coupling of two very reactive substrates, an aryne and an organopalladium species, to generate excellent yields of cross-coupled products.

Zhijian Liu

2006-12-12T23:59:59.000Z

399

ORGANIC SPECIES IN GEOTHERMAL WATERS IN LIGHT OF FLUID INCLUSION GAS  

Open Energy Info (EERE)

ORGANIC SPECIES IN GEOTHERMAL WATERS IN LIGHT OF FLUID INCLUSION GAS ORGANIC SPECIES IN GEOTHERMAL WATERS IN LIGHT OF FLUID INCLUSION GAS ANALYSES Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: ORGANIC SPECIES IN GEOTHERMAL WATERS IN LIGHT OF FLUID INCLUSION GAS ANALYSES Details Activities (1) Areas (1) Regions (0) Abstract: Measurement of organic compounds in Karaha- Telaga Bodas and Coso fluid inclusions shows there are strong relationships between H2 concentrations and alkane/alkene ratios and benzene concentrations. Inclusion analyses that indicate H2 concentrations > 0.001 mol % typically have ethane > ethylene, propane > propylene, and butane > butylene. There are three end member fluid compositions: type 1 fluids in which alkane compounds predominate, type 2 fluids that have ethane and propylene and no

400

Recovery of mercury from mercury compounds via electrolytic methods  

DOE Patents [OSTI]

A process for electrolytically recovering mercury from mercury compounds is provided. In one embodiment, Hg is recovered from Hg.sub.2 Cl.sub.2 employing as the electrolyte solution a mixture of HCl and H.sub.2 O. In another embodiment, Hg is electrolytically recovered from HgO wherein the electrolyte solution is comprised of glacial acetic acid and H.sub.2 O. Also provided is an apparatus for producing isotopically enriched mercury compounds in a reactor and then transporting the dissolved compounds into an electrolytic cell where mercury ions are electrolytically reduced and elemental mercury recovered from the mercury compounds.

Grossman, Mark W. (Belmont, MA); George, William A. (Rockport, MA)

1989-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "organic compounds tetraphenylborate" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Recovery of mercury from mercury compounds via electrolytic methods  

DOE Patents [OSTI]

A process for electrolytically recovering mercury from mercury compounds is provided. In one embodiment, Hg is recovered from Hg[sub 2]Cl[sub 2] employing as the electrolyte solution a mixture of HCl and H[sub 2]O. In another embodiment, Hg is electrolytically recovered from HgO wherein the electrolyte solution is comprised of glacial acetic acid and H[sub 2]O. Also provided is an apparatus for producing isotopically enriched mercury compounds in a reactor and then transporting the dissolved compounds into an electrolytic cell where mercury ions are electrolytically reduced and elemental mercury recovered from the mercury compounds. 3 figures.

Grossman, M.W.; George, W.A.

1991-06-18T23:59:59.000Z

402

Recovery of mercury from mercury compounds via electrolytic methods  

DOE Patents [OSTI]

A process for electrolytically recovering mercury from mercury compounds is provided. In one embodiment, Hg is recovered from Hg.sub.2 Cl.sub.2 employing as the electrolyte solution a mixture of HCl and H.sub.2 O. In another embodiment, Hg is electrolytically recovered from HgO wherein the electrolyte solution is comprised of glacial acetic acid and H.sub.2 O. Also provided is an apparatus for producing isotopically enriched mercury compounds in a reactor and then transporting the dissolved compounds into an electrolytic cell where mercury ions are electrolytically reduced and elemental mercury recovered from the mercury compounds.

Grossman, Mark W. (Belmont, MA); George, William A. (Rockport, MA)

1988-01-01T23:59:59.000Z

403

Recovery of mercury from mercury compounds via electrolytic methods  

DOE Patents [OSTI]

A process for electrolytically recovering mercury from mercury compounds is provided. In one embodiment, Hg is recovered from Hg.sub.2 Cl.sub.2 employing as the electrolyte solution a mixture of HCl and H.sub.2 O. In another embodiment, Hg is electrolytically recovered from HgO wherein the electrolyte solution is comprised of glacial acetic acid and H.sub.2 O. Also provided is an apparatus for producing isotopically enriched mercury compounds in a reactor and then transporting the dissolved compounds into an electrolytic cell where mercury ions are electrolytically reduced and elemental mercury recovered from the mercury compounds.

Grossman, Mark W. (Belmont, MA); George, William A. (Rockport, MA)

1991-01-01T23:59:59.000Z

404

Recovery of mercury from mercury compounds via electrolytic methods  

DOE Patents [OSTI]

A process for electrolytically recovering mercury from mercury compounds is provided. In one embodiment, Hg is recovered from Hg[sub 2]Cl[sub 2] employing as the electrolyte solution a mixture of HCl and H[sub 2]O. In another embodiment, Hg is electrolytically recovered from HgO wherein the electrolyte solution is comprised of glacial acetic acid and H[sub 2]O. Also provided is an apparatus for producing isotopically enriched mercury compounds in a reactor and then transporting the dissolved compounds into an electrolytic cell where mercury ions are electrolytically reduced and elemental mercury recovered from the mercury compounds. 3 figs.

Grossman, M.W.; George, W.A.

1989-11-07T23:59:59.000Z

405

Turbo Compounding: A Technology Whose Time Has Come | Department...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

A Technology Whose Time Has Come Turbo Compounding: A Technology Whose Time Has Come 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters...

406

Compound and Elemental Analysis At Fish Lake Valley Area (Deymonaz...  

Open Energy Info (EERE)

ENERGYGeothermal Home Exploration Activity: Compound and Elemental Analysis At Fish Lake Valley Area (Deymonaz, Et Al., 2008) Exploration Activity Details Location Fish...

407

Compound and Elemental Analysis At Fish Lake Valley Area (DOE...  

Open Energy Info (EERE)

Fish Lake Valley Area Exploration Technique Compound and Elemental Analysis Activity Date Usefulness not indicated DOE-funding Unknown References (1 January 2011) GTP ARRA...

408

Compound and Elemental Analysis At International Geothermal Area...  

Open Energy Info (EERE)

Technique Compound and Elemental Analysis Activity Date Usefulness not indicated DOE-funding Unknown Notes Improving Exploration Models of Andesite-Hosted Geothermal...

409

Compound and Elemental Analysis At Fenton Hill HDR Geothermal...  

Open Energy Info (EERE)

Technique Compound and Elemental Analysis Activity Date - 1983 Usefulness useful DOE-funding Unknown Notes Thin sections were prepared of the different lithologies from...

410

Model Compound Studies of Fuel Cell Membrane Degradation  

Broader source: Energy.gov [DOE]

Presentation on Model Compound Studies of Fuel Cell Membrane Degradation to the High Temperature Membrane Working Group Meeting held in Arlington, Virginia, May 26,2005.

411

Possibilities of Production and Use of Rubber-Bitumen Compounds  

Science Journals Connector (OSTI)

Procedures are discussed for production of rubber-bitumen compounds based on spent rubber items. A possibility of using these binders...

D. G. Shunin; A. G. Filippova; N. A. Okhotina…

2002-06-01T23:59:59.000Z

412

Microfluidic self-assembly of quantum dot compound micelles.  

E-Print Network [OSTI]

??This thesis is devoted to the development of microfluidic processes for the controlled self-assembly of quantum dot compound micelles (QDCMs). Microfluidic processes are developed to… (more)

Schabas, Greg

2007-01-01T23:59:59.000Z

413

Compound and Elemental Analysis At Valles Caldera - Sulphur Springs...  

Open Energy Info (EERE)

Sulphur Springs Geothermal Area (White, Et Al., 1992) Exploration Activity Details Location Valles Caldera - Sulphur Springs Geothermal Area Exploration Technique Compound and...

414

Compound and Elemental Analysis At Valles Caldera - Redondo Geothermal...  

Open Energy Info (EERE)

Redondo Geothermal Area (White, Et Al., 1992) Exploration Activity Details Location Valles Caldera - Redondo Geothermal Area Exploration Technique Compound and Elemental Analysis...

415

Prediction of New Hydrogen Storage Compounds and Mixtures  

Broader source: Energy.gov (indexed) [DOE]

8, 2006 DOE Theory Focus Session on Hydrogen Storage Materials Prediction of New Hydrogen Storage Compounds and Mixtures Vidvuds Ozoli UCLA Research supported by DOE grants No....

416

Prediction of New Hydrogen Storage Compounds and Mixtures  

Broader source: Energy.gov [DOE]

Presentation on the Prediction of New Hydrogen Storage Compounds and Mixtures given at the DOE Theory Focus Session on Hydrogen Storage Materials on May 18, 2006.

417

Process for preparing a chemical compound enriched in isotope content  

DOE Patents [OSTI]

A process to prepare a chemical enriched in isotope content which includes: (a) A chemical exchange reaction between a first and second compound which yields an isotopically enriched first compound and an isotopically depleted second compound; (b) the removal of a portion of the first compound as product and the removal of a portion of the second compound as spent material; (c) the conversion of the remainder of the first compound to the second compound for reflux at the product end of the chemical exchange reaction region; (d) the conversion of the remainder of the second compound to the first compound for reflux at the spent material end of the chemical exchange region; and the cycling of the additional chemicals produced by one conversion reaction to the other conversion reaction, for consumption therein. One of the conversion reactions is an oxidation reaction, and the energy that it yields is used to drive the other conversion reaction, a reduction. The reduction reaction is carried out in a solid polymer electrolyte electrolytic reactor. The overall process is energy efficient and yields no waste by-products.

Michaels, Edward D. (Spring Valley, OH)

1982-01-01T23:59:59.000Z

418

Compound and Elemental Analysis At Glass Buttes Area (DOE GTP...  

Open Energy Info (EERE)

Area (DOE GTP) Exploration Activity Details Location Glass Buttes Area Exploration Technique Compound and Elemental Analysis Activity Date Usefulness not indicated DOE-funding...

419

Process for synthesizing compounds from elemental powders and product  

DOE Patents [OSTI]

A process for synthesizing intermetallic compounds from elemental powders. The elemental powders are initially combined in a ratio which approximates the stoichiometric composition of the intermetallic compound. The mixed powders are then formed into a compact which is heat treated at a controlled rate of heating such that an exothermic reaction between the elements is initiated. The heat treatment may be performed under controlled conditions ranging from a vacuum (pressureless sintering) to compression (hot pressing) to produce a desired densification of the intermetallic compound. In a preferred form of the invention, elemental powders of Fe and Al are combined to form aluminide compounds of Fe.sub.3 Al and FeAl.

Rabin, Barry H. (Idaho Falls, ID); Wright, Richard N. (Idaho Falls, ID)

1993-01-01T23:59:59.000Z

420

Selective Conversion of Lignin into Simple Aromatic Compounds...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

of Lignin into Simple Aromatic Compounds Great Lakes Bioenergy Research Center Contact GLBRC About This Technology Technology Marketing Summary Lignin is a major component of...

Note: This page contains sample records for the topic "organic compounds tetraphenylborate" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Comment on Tunable generation and adsorption of energetic compounds...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Tunable generation and adsorption of energetic compounds in the vapor phase at trace levels: A tool for testing and Comment on Tunable generation and adsorption of energetic...

422

APPLICATION OF STIR BAR SORPTIVE EXTRACTION TO ANALYSIS OF VOLATILE AND SEMIVOLATILE ORGANIC CHEMICALS OF POTENTIAL CONCERN IN SOLIDS AND AQUEOUS SAMPLES FROM THE HANFORD SITE  

SciTech Connect (OSTI)

Stir bar sorptive extraction was applied to aqueous and solid samples for the extraction and analysis of organic compounds from the Hanford chemicals of potential concern list, as identified in the vapor data quality objectives. The 222-S Laboratory analyzed these compounds from vapor samples on thermal desorption tubes as part of the Hanford Site industrial hygiene vapor sampling effort.

FRYE JM; KUNKEL JM

2009-03-05T23:59:59.000Z

423

Method for converting asbestos to non-carcinogenic compounds  

DOE Patents [OSTI]

Hazardous and carcinogenic asbestos waste characterized by a crystalline fibrous structure is transformed into non-carcinogenic, relatively nonhazardous, and non-crystalline solid compounds and gaseous compounds which have commercial utilization. The asbestos waste is so transformed by the complete fluorination of the crystalline fibrous silicate mineral defining the asbestos. 7 figs.

Selby, T.W.

1996-08-06T23:59:59.000Z

424

Experimental investigation of single carbon compounds under hydrothermal conditions  

E-Print Network [OSTI]

Experimental investigation of single carbon compounds under hydrothermal conditions Jeffrey S; accepted in revised form 8 September 2005 Abstract The speciation of carbon in subseafloor hydrothermal reactant during the abiotic synthesis of reduced carbon compounds via Fischer­Tropsch-type processes

Rhoads, James

425

Method for selective dehalogenation of halogenated polyaromatic compounds  

DOE Patents [OSTI]

A method for dehalogenating halogenated polyaromatic compounds is provided wherein the polyaromatic compounds are mixed with a hydrogen donor solvent and a carbon catalyst in predetermined proportions, the mixture is maintained at a predetermined pressure, and the mixture is heated to a predetermined temperature and for a predetermined time.

Farcasiu, Malvina (Pittsburgh, PA); Petrosius, Steven C. (Library, PA)

1994-01-01T23:59:59.000Z

426

Preparation of high nitrogen compound and materials therefrom  

DOE Patents [OSTI]

The high-nitrogen compound of the formula ##STR00001## was prepared. Pyrolysis of the compound yields carbon nitrides C.sub.2N.sub.3 and C.sub.3N.sub.5. The carbon nitrides vary in their density, texture, and morphology.

Huynh, My Hang V. (Los Alamos, NM); Hiskey, Michael A. (Los Alamos, NM)

2006-10-10T23:59:59.000Z

427

Functional Integrative Levels in the Human Interactome Recapitulate Organ Organization  

E-Print Network [OSTI]

Functional Integrative Levels in the Human Interactome Recapitulate Organ Organization Ouissem, Marseille, France, 3 Institut Pasteur, Tunis, Tunisia, 4 Bioinformatics and Functional Genomics Research spatio-temporal information by construction. However, the specialized functions of the differentiated

Boyer, Edmond

428

Nitric-phosphoric acid oxidation of organic waste materials  

SciTech Connect (OSTI)

A wet chemical oxidation technology has been developed to address issues facing defense-related facilities, private industry, and small-volume generators such as university and medical laboratories. Initially tested to destroy and decontaminate a heterogenous mixture of radioactive-contaminated solid waste, the technology can also remediate other hazardous waste forms. The process, unique to Savannah River, offers a valuable alternative to incineration and other high-temperature or high-pressure oxidation processes. The process uses nitric acid in phosphoric acid; phosphoric acid allows nitric acid to be retained in solution well above its normal boiling point. The reaction converts organics to carbon dioxide and water, and generates NO{sub x} vapors which can be recycled using air and water. Oxidation is complete in one to three hours. In previous studies, many organic compounds were completely oxidized, within experimental error, at atmospheric pressure below 180{degrees}C; more stable compounds were decomposed at 200{degrees}C and 170 kPa. Recent studies have evaluated processing parameters and potential throughputs for three primary compounds: EDTA, polyethylene, and cellulose. The study of polyvinylchloride oxidation is incomplete at this time.

Pierce, R.A.; Smith, J.R.

1995-11-01T23:59:59.000Z

429

Organic substances in produced and formation water from unconventional natural gas extraction in coal and shale  

Science Journals Connector (OSTI)

Abstract Organic substances in produced and formation water from coalbed methane (CBM) and gas shale plays from across the USA were examined in this study. Disposal of produced waters from gas extraction in coal and shale is an important environmental issue because of the large volumes of water involved and the variable quality of this water. Organic substances in produced water may be environmentally relevant as pollutants, but have been little studied. Results from five CBM plays and two gas shale plays (including the Marcellus Shale) show a myriad of organic chemicals present in the produced and formation water. Organic compound classes present in produced and formation water in CBM plays include: polycyclic aromatic hydrocarbons (PAHs), heterocyclic compounds, alkyl phenols, aromatic amines, alkyl aromatics (alkyl benzenes, alkyl biphenyls), long-chain fatty acids, and aliphatic hydrocarbons. Concentrations of individual compounds range from CBM samples) range from 50 to 100 ?g/L. Total dissolved organic carbon (TOC) in CBM produced water is generally in the 1–4 mg/L range. Excursions from this general pattern in produced waters from individual wells arise from contaminants introduced by production activities (oils, grease, adhesives, etc.). Organic substances in produced and formation water from gas shale unimpacted by production chemicals have a similar range of compound classes as CBM produced water, and TOC levels of about 8 mg/L. However, produced water from the Marcellus Shale using hydraulic fracturing has TOC levels as high as 5500 mg/L and a range of added organic chemicals including, solvents, biocides, scale inhibitors, and other organic chemicals at levels of 1000 s of ?g/L for individual compounds. Levels of these hydraulic fracturing chemicals and TOC decrease rapidly over the first 20 days of water recovery and some level of residual organic contaminants remain up to 250 days after hydraulic fracturing. Although the environmental impacts of the organics in produced water are not well defined, results suggest that care should be exercised in the disposal and release of produced waters containing these organic substances into the environment because of the potential toxicity of many of these substances.

William Orem; Calin Tatu; Matthew Varonka; Harry Lerch; Anne Bates; Mark Engle; Lynn Crosby; Jennifer McIntosh

2014-01-01T23:59:59.000Z

430

Compound and Elemental Analysis At Fenton Hill Hdr Geothermal Area  

Open Energy Info (EERE)

Compound and Elemental Analysis At Fenton Hill Hdr Geothermal Area Compound and Elemental Analysis At Fenton Hill Hdr Geothermal Area (Brookins & Laughlin, 1983) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Compound and Elemental Analysis At Fenton Hill Hdr Geothermal Area (Brookins & Laughlin, 1983) Exploration Activity Details Location Fenton Hill Hdr Geothermal Area Exploration Technique Compound and Elemental Analysis Activity Date Usefulness not indicated DOE-funding Unknown Notes Fenton Hill HDR Site References D. G. Brookins, A. W. Laughlin (1983) Rb-Sr Geochronologic Investigation Of Precambrian Samples From Deep Geothermal Drill Holes, Fenton Hill, New Mexico Retrieved from "http://en.openei.org/w/index.php?title=Compound_and_Elemental_Analysis_At_Fenton_Hill_Hdr_Geothermal_Area_(Brookins_%26_Laughlin,_1983)&oldid=511281"

431

Definition: Compound and Elemental Analysis | Open Energy Information  

Open Energy Info (EERE)

Definition Definition Edit with form History Facebook icon Twitter icon » Definition: Compound and Elemental Analysis Jump to: navigation, search Dictionary.png Compound and Elemental Analysis Compound and elemental analysis is a process where a sample of some material (e.g., soil, waste or drinking water, bodily fluids, minerals, chemical compounds) is analyzed for its elements and compounds and sometimes its isotopic composition. Elemental analysis can be qualitative (determining what elements are present), and it can also be quantitative (determining how much of each type are present).[1] View on Wikipedia Wikipedia Definition References ↑ http://en.wikipedia.org/wiki/Elemental_analysis Ret Like Like You like this.Sign Up to see what your friends like. rieved from

432

Multicolor Maps from Compound Queries | OpenEI Community  

Open Energy Info (EERE)

Multicolor Maps from Compound Queries Multicolor Maps from Compound Queries Home > Groups > OpenEI Community Central Jweers's picture Submitted by Jweers(83) Contributor 16 May, 2013 - 14:22 ask queries compound queries developer Google maps maps multicolor result formats results Semantic Mediawiki Hi all, Recently, a couple of people on OpenEI have asked me how to do compound (or multicolor) maps like this one: Thanks to the new Google Maps v3 API, this is really easy. I put together a quick sample of how this is done, complete with code snippits, here: http://en.openei.org/wiki/User:Jweers/Test5. First, create a compound query, then atttribute a custom marker icon to each query using the ;param=value syntax. The new OpenEI maps extension will take care of the rest. Here is an example of it in use on OpenEI by NREL's Geothermal team:

433

Device for collecting chemical compounds and related methods  

DOE Patents [OSTI]

A device for sampling chemical compounds from fixed surfaces and related methods are disclosed. The device may include a vacuum source, a chamber and a sorbent material. The device may utilize vacuum extraction to volatilize the chemical compounds from the fixed surfaces so that they may be sorbed by the sorbent material. The sorbent material may then be analyzed using conventional thermal desorption/gas chromatography/mass spectrometry (TD/GC/MS) instrumentation to determine presence of the chemical compounds. The methods may include detecting release and presence of one or more chemical compounds and determining the efficacy of decontamination. The device may be useful in collection and analysis of a variety of chemical compounds, such as residual chemical warfare agents, chemical attribution signatures and toxic industrial chemicals.

Scott, Jill R.; Groenewold, Gary S.; Rae, Catherine

2013-01-01T23:59:59.000Z

434

Atmospheric Environment 36 (2002) 51855196 FTIR measurements of functional groups and organic mass in  

E-Print Network [OSTI]

the National Center for Atmospheric Research C-130 aircraft during the passing efficiency of a low, with higher Al/Ca ratios in the boundary layer. Organic compounds were present in high and low dust conditions or may condense onto pre- existing particles. Partly as a result of this vapor-to- particle conversion

Russell, Lynn

435

Analysis and reduction of degradation of working fluid in the Sundstrand Organic Rankine-Cycle System  

SciTech Connect (OSTI)

Studies on understanding the location and construction levels of oxygen in the organic Rankine cycle (ORC) unit and establishing a rate of degradation with time for toluene in an operating ORC system are presented. Work on identifying the compounds in degraded toluene and contamination removal is discussed. (MHR)

Berger, R.

1983-07-01T23:59:59.000Z

436

Sources of organic nitrogen at the serpentinite-hosted Lost City hydrothermal field  

E-Print Network [OSTI]

Sources of organic nitrogen at the serpentinite-hosted Lost City hydrothermal field S. Q. LANG,1 G environment, the Lost City hydrothermal field (30°N, Mid-Atlantic Ridge). Total hydrolizable amino acid (THAA carbon (2.5­15.1%). The amino acid distributions, and the relative concentrations of these compounds

Gilli, Adrian

437

The path to ubiquitous and low-cost organic electronic appliances on plastic  

Science Journals Connector (OSTI)

... films on a variety of very-low-cost substrates such as glass, plastic or metal foils, and the relative ease of processing of the organic compounds that are currently being ... the world of inorganic semiconductors. Many processes involve direct printing through use of contact with stamps, or alternatively via ink-jets and other solution-based methods. ...

Stephen R. Forrest

2004-04-29T23:59:59.000Z

438

Organic sponges for cost-effective CVOC abatement. Final report, September 1992--April 1994  

SciTech Connect (OSTI)

Air contaminated with CVOCs (chlorinated volatile organic compounds) arise from air stripping of ground water or from soil and dual phase vapor extraction. A research program was undertaken to develop sorbents better than activated carbon for remediation. Two such sorbents were found: Dow`s XUS polymer and Rohm and Haas` Ambersorb 563 (carbonaceous). Opportunities exist to further develop sorption and biodegradation technologies.

Flanagan, W.P.; Grade, M.M.; Horney, D.P.; Mackenzie, P.D.; Salvo, J.J.; Sivavec, T.M.; Stephens, M.L.

1994-07-01T23:59:59.000Z

439

Metal Organic Framework Research: High Throughput Discovery of Robust Metal Organic Framework for CO2 Capture  

SciTech Connect (OSTI)

IMPACCT Project: LBNL is developing a method for identifying the best metal organic frameworks for use in capturing CO2 from the flue gas of coal-fired power plants. Metal organic frameworks are porous, crystalline compounds that, based on their chemical structure, vary considerably in terms of their capacity to grab hold of passing CO2 molecules and their ability to withstand the harsh conditions found in the gas exhaust of coal-fired power plants. Owing primarily to their high tunability, metal organic frameworks can have an incredibly wide range of different chemical and physical properties, so identifying the best to use for CO2 capture and storage can be a difficult task. LBNL uses high-throughput instrumentation to analyze nearly 100 materials at a time, screening them for the characteristics that optimize their ability to selectively adsorb CO2 from coal exhaust. Their work will identify the most promising frameworks and accelerate their large-scale commercial development to benefit further research into reducing the cost of CO2 capture and storage.

None

2010-08-01T23:59:59.000Z

440

Organic Solar Cells — A Survey  

Science Journals Connector (OSTI)

The objective of this study was to examine in some detail the question of efficient organic solar cells. The scientific-technical situation concerning organic solar cells is highly confusing and unsatisfactory. I...

Dieter Bonnet; Jürgen Volkheimer

1991-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "organic compounds tetraphenylborate" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

11, 26552696, 2011 Organic functional  

E-Print Network [OSTI]

) name biomass burning (BB) as the largest (42%) combustion source of pri- mary organic carbon fossil-fuel combustion and burning and non-burning forest sources of the measured organic aerosol. The OM

Russell, Lynn

442

Organization and Functions  

Broader source: Energy.gov (indexed) [DOE]

Working to Ensure the Safety and Security of Hazardous Material Shipments Working to Ensure the Safety and Security of Hazardous Material Shipments Organization and Functions Mission Unit EM-30 Deputy Assistant Secretary/ADAS Waste Management Director Office of Packaging and Transportation EM-33 Regulations & Standards Support * ANSI * ASME/ ASTM * DHS * DOD FEMA * FMCSA * FRA * IAEA * ICAO * IMO * NRC * Orders * PHMSA TSA * UN TDG SCOE Packaging Certification * CoCs for Type B/AF Packages * DOE Exemptions * DOT Special Permits & COCA * QA * RAMPAC * SCALE * Technical Assistance * Training Program & Site Support * ATMS * EFCOG * EIS Reviews * IPT * Load Securement Guide * PMC * RADCALC * RADTRAN * Secure transport * Technical assistance * Tenders * TMC * TRAGIS

443

Plan of organization  

E-Print Network [OSTI]

~!lr fund available. By recent enactment the appropriation ib placed at the disposal of tEe screral States, and the station1 are being organized. OBJECT OF THE STATIONS. The purpose for which the Agricultural Experiment 11 mas passed is clearly... in the mails free. THE EXPERIMENT STATIONS were placed under the supervision of the Boards of Directors of the Agricultural and Mechanical Colleges, not for the pur- pose of assisting the colleges, but because it was thought the fund would be most...

McInnis, Louis L. (Louis Lowry); Scott, T. M.; Gulley, F. A. (Frank Arthur)

1888-01-01T23:59:59.000Z

444

Surfactant-enhanced remediation of organic contaminated soil and water  

Science Journals Connector (OSTI)

Surfactant based remediation technologies for organic contaminated soil and water (groundwater or surface water) is of increasing importance recently. Surfactants are used to dramatically expedite the process, which in turn, may reduce the treatment time of a site compared to use of water alone. In fact, among the various available remediation technologies for organic contaminated sites, surfactant based process is one of the most innovative technologies. To enhance the application of surfactant based technologies for remediation of organic contaminated sites, it is very important to have a better understanding of the mechanisms involved in this process. This paper will provide an overview of the recent developments in the area of surfactant enhanced soil and groundwater remediation processes, focusing on (i) surfactant adsorption on soil, (ii) micellar solubilization of organic hydrocarbons, (iii) supersolubilization, (iv) density modified displacement, (v) degradation of organic hydrocarbon in presence surfactants, (vi) partitioning of surfactants onto soil and liquid organic phase, (vii) partitioning of contaminants onto soil, and (viii) removal of organics from soil in presence of surfactants. Surfactant adsorption on soil and/or sediment is an important step in this process as it results in surfactant loss reduced the availability of the surfactants for solubilization. At the same time, adsorbed surfactants will retained in the soil matrix, and may create other environmental problem. The biosurfactants are become promising in this application due to their environmentally friendly nature, nontoxic, low adsorption on to soil, and good solubilization efficiency. Effects of different parameters like the effect of electrolyte, pH, soil mineral and organic content, soil composition etc. on surfactant adsorption are discussed here. Micellar solubilization is also an important step for removal of organic contaminants from the soil matrix, especially for low aqueous solubility organic contaminants. Influences of different parameters such as single and mixed surfactant system, hydrophilic and hydrophobic chain length, HLB value, temperature, electrolyte, surfactant type that are very important in micellar solubilization are reviewed here. Microemulsion systems show higher capacity of organic hydrocarbons solubilization than the normal micellar system. In the case of biodegradation of organic hydrocarbons, the rate is very slow due to low water solubility and dissolution rate but the presence of surfactants may increase the bioavailability of hydrophobic compounds by solubilization and hence increases the degradation rate. In some cases the presence of it also reduces the rate. In addition to fundamental studies, some laboratory and field studies on removal of organics from contaminated soil are also reviewed to show the applicability of this technology.

Santanu Paria

2008-01-01T23:59:59.000Z

445

Nuclear Organization and Genome Function  

E-Print Network [OSTI]

Nuclear Organization and Genome Function Kevin Van Bortle and Victor G. Corces Department-range interactions and have proposed roles in nuclear organization. In this review, we explore recent findings for the roles of insulators in nuclear organization. 163 Annu.Rev.CellDev.Biol.2012.28:163-187.Downloadedfromwww

Corces, Victor G.

446

Organic matter in ancient meteorites  

Science Journals Connector (OSTI)

......asteroids. 3: Organic matter in...lead to the production of hydroxy...useful in cell membranes...a part in cell membranes...meteorite organic matter because...form the solar system bequeathed...the early solar system and organic-inorganic......

Mark A Sephton

2004-04-01T23:59:59.000Z

447

Photolytic processing of secondary organic aerosols dissolved in cloud droplets  

SciTech Connect (OSTI)

The effect of UV irradiation on the molecular composition of aqueous extracts of secondary organic aerosol (SOA) was investigated. SOA was prepared by the dark reaction of ozone and d-limonene at 0.05 - 1 ppm precursor concentrations and collected with a particle-into-liquid sampler (PILS). The PILS extracts were photolyzed by 300 - 400 nm radiation for up to 24 hours. Water-soluble SOA constituents were analyzed using high-resolution electrospray ionization mass spectrometry (HR-ESI-MS) at different stages of photolysis for all SOA precursor concentrations. Exposure to UV radiation increased the average O/C ratio and decreased the average double bond equivalent (DBE) of the dissolved SOA compounds. Oligomeric compounds were significantly reduced by photolysis relative to the monomeric compounds. Direct pH measurements showed that compounds containing carboxylic acids increased upon photolysis. Methanol reactivity analysis revealed significant photodissociation of molecules containing carbonyl groups and formation of carboxylic acids. Aldehydes, such as limononaldehyde, were almost completely removed. The removal of carbonylswas confirmed by the UV-Vis absorption spectroscopy of the SOA extracts where the absorbance in the carbonyl n??* band decreased significantly upon photolysis. The effective quantum yield (the number of carbonyls destroyed per photon absorbed) was estimated as ~ 0.03. The concentration of peroxides did not change significantly during photolysis as quantified with an iodometric test. Although organic peroxides were photolyzed, the likely end products of photolysis were smaller peroxides, including hydrogen peroxide, resulting in a no net change in the peroxide content.

Bateman, Adam P.; Nizkorodov, Serguei; Laskin, Julia; Laskin, Alexander

2011-05-26T23:59:59.000Z

448

Abatement of Air Pollution: Control of Sulfur Compound Emissions  

Broader source: Energy.gov (indexed) [DOE]

Abatement of Air Pollution: Control of Sulfur Compound Emissions Abatement of Air Pollution: Control of Sulfur Compound Emissions (Connecticut) Abatement of Air Pollution: Control of Sulfur Compound Emissions (Connecticut) < Back Eligibility Agricultural Commercial Construction Fed. Government Fuel Distributor General Public/Consumer Industrial Installer/Contractor Institutional Investor-Owned Utility Local Government Low-Income Residential Multi-Family Residential Municipal/Public Utility Nonprofit Residential Retail Supplier Rural Electric Cooperative Schools State/Provincial Govt Systems Integrator Transportation Tribal Government Utility Program Info State Connecticut Program Type Environmental Regulations Provider Department of Energy and Environmental Protection These regulations set limits on the sulfur content of allowable fuels (1.0%

449

Organ Donation after Cardiac Death  

Science Journals Connector (OSTI)

...the brain stem). Organs were recovered from 645 donors after cardiac death in 2006, as compared with 189 in 2002; these donors accounted for 8% of all deceased donors in 2006 (see bar graph). At the Organ Procurement Organization at the University of Wisconsin, the New England Organ Bank in the Boston... A rapid increase in the rate of organ recovery from deceased persons has occurred in the category of donation after “cardiac death.” Dr. Robert Steinbrook writes that these donations remain troubling to some and are not as widely accepted as donations ...

Steinbrook R.

2007-07-19T23:59:59.000Z

450

Microorganisms for producing organic acids  

DOE Patents [OSTI]

Organic acid-producing microorganisms and methods of using same. The organic acid-producing microorganisms comprise modifications that reduce or ablate AcsA activity or AcsA homolog activity. The modifications increase tolerance of the microorganisms to such organic acids as 3-hydroxypropionic acid, acrylic acid, propionic acid, lactic acid, and others. Further modifications to the microorganisms increase production of such organic acids as 3-hydroxypropionic acid, lactate, and others. Methods of producing such organic acids as 3-hydroxypropionic acid, lactate, and others with the modified microorganisms are provided. Methods of using acsA or homologs thereof as counter-selectable markers are also provided.

Pfleger, Brian Frederick; Begemann, Matthew Brett

2014-09-30T23:59:59.000Z

451

New metal-organic nanomaterials synthesized by laser irradiation of organic liquids  

SciTech Connect (OSTI)

A new type of metal-organic composition consisting of clusters of nanoparticles has been synthesised by laser irradiation of metallocene/benzene solutions. The metallocene molecules in this reaction become the source of the metal. Exposure to high-energy femtosecond laser pulses dehydrogenate benzene molecules and initiate the high-temperature high-pressure conditions that results in the synthesis of new materials. Irradiation experiments have been carried out on ferrocene/benzene and on other solutions. With ferrocene the synthesis of a new compound has been confirmed by X-ray powder diffraction as the peaks detected do not correspond to any known substance in the Crystallography Open Database. Theoretical simulation of the periodic structure of this new carbide predicts that it has hexagonal symmetry and a unit cell with a = 3.2A and c =2.8A. The exact structure is still uncertain but may be determined from scanning tunneling microscope (STM) studies.

Kuzmin, Stanislav L.; Wesolowski, Michal J.; Duley, Walter W. [Department of Physics and Astronomy, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1 (Canada)

2014-03-31T23:59:59.000Z

452

Organic Molecule Functionalized Zn3P2 Nanowire Inorganic-Organic...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Organic Molecule Functionalized Zn3P2 Nanowire Inorganic-Organic Hybrid Thermoelectrics Organic Molecule Functionalized Zn3P2 Nanowire Inorganic-Organic Hybrid Thermoelectrics...

453

Sorption of organic gases in a furnished room  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

a furnished room a furnished room Title Sorption of organic gases in a furnished room Publication Type Journal Article LBNL Report Number LBNL-53943 Year of Publication 2004 Authors Singer, Brett C., Kenneth L. Revzan, Toshifumi Hotchi, Alfred T. Hodgson, and Nancy J. Brown Journal Atmospheric Environment Volume 38 Start Page Chapter Issue 16 Pagination 2483-2494 Abstract We present experimental data and semi-empirical models describing the sorption of organic gases in a simulated indoor residential environment. Two replicate experiments were conducted with 20 volatile organic compounds (VOCs) in a 50-m3 room finished with painted wallboard, carpet and cushion, draperies and furnishings. The VOCs span a wide volatility range and include ten Hazardous Air Pollutants. VOCs were introduced to the static chamber as a pulse and their gas-phase concentrations were measured during a net adsorption period and a subsequent net desorption period. Three sorption models were fit to the measured concentrations for each compound to determine the simplest formulation needed to adequately describe the observed behavior. Sorption parameter values were determined by fitting the models to adsorption period data then checked by comparing measured and predicted behavior during desorption. The adequacy of each model was evaluated using a goodness of fit parameter calculated for each period. Results indicate that sorption usually does not greatly affect indoor concentrations of methyl-tert-butyl ether, 2-butanone, isoprene and benzene. In contrast, sorption appears to be a relevant indoor process for many of the VOCs studied, including C8-C10 aromatic hydrocarbons (HC), terpenes, and pyridine. These compounds sorbed at rates close to typical residential air change rates and exhibited substantial sorptive partitioning at equilibrium. Polycyclic aromatic HCs, aromatic alcohols, ethenylpyridine and nicotine initially adsorbed to surfaces at rates of 1.5 to >6 h-1 and partitioned 95 to >99% in the sorbed phase at equilibrium

454

DESULFURIZATION OF COAL MODEL COMPOUNDS AND COAL LIQUIDS  

E-Print Network [OSTI]

fixation in slag or bottom ash, coal gasification, or coallimestone and coal that form little fly ash and trap sulfurSulfate Organic Ash (%) "Organic Sulfur", in Wheelock, Coal

Wrathall, James Anthony

2011-01-01T23:59:59.000Z

455

Lattice mismatched compound semiconductors and devices on silicon  

E-Print Network [OSTI]

III-V compound semiconductors, due to their superior electron mobility, are promising candidates for n-type metal-oxide-semiconductor field effect transistors (MOSFETs). However, the limited size of III-V substrates and ...

Yang, Li, Ph. D. Massachusetts Institute of Technology

2011-01-01T23:59:59.000Z

456

Catalysis of 6? Electrocyclizations & Catalytic Disproportionation of Lignin Model Compounds  

E-Print Network [OSTI]

J. D. ; McNally, T. J. Lignin. In Kirk-Othmer EncyclopediaK. ; Gellerstedt, G. Lignin. In Analytical Methods in Woodof a 1-phenylpropane-1,3-diol lignin model compound via ?-

Bishop, Lee

2010-01-01T23:59:59.000Z

457

Low-molecular-mass asphaltene compounds from Usa heavy oil  

Science Journals Connector (OSTI)

By the extraction, adsorption chromatography, it has been shown that asphaltene macromolecules from Usa crude oil contain compounds with a relatively low molecular mass represented by normal and branched alkan...

V. P. Sergun; E. Yu. Kovalenko; T. A. Sagachenko; R. S. Min

2014-03-01T23:59:59.000Z

458

Wood-Fiber/High-Density-Polyethylene Composites: Compounding Process  

E-Print Network [OSTI]

Wood-Fiber/High-Density-Polyethylene Composites: Compounding Process J. Z. Lu,1 Q. Wu,1 I. I parameters for the wood-fiber/high-density-polyethylene blends at 60 rpm were a temperature of 180°C

459

Electrochemically driven phase transformation in energy storage compounds  

E-Print Network [OSTI]

Nanoscale lithium transition metal phosphate olivines have become commercially important as positive electrode materials in a new generation of lithium-ion batteries. Not surprisingly, many energy storage compounds undergo ...

Gao, Yuhua

2011-01-01T23:59:59.000Z

460

Hypoxia-selective compounds for boron neutron capture therapy  

E-Print Network [OSTI]

Boron neutron capture therapy (BNCT) is a biochemically targeted form of radiotherapy for cancer. In BNCT, a compound labeled with the stable isotope boron-10 is systemically administered, and tumor cells selectively uptake ...

Shah, Jungal (Jugal Kaushik)

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "organic compounds tetraphenylborate" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Determination of Selenium in Seleno Compounds and Marine  

E-Print Network [OSTI]

Atomization Atomic Absorption Spectrometry Journalof Analytical I Atomic I Spectrometry M. DEAKER AND W. MAHER determination; electrothermal atomization atomic absorption spectrometry; seleno compounds; marine biological tissues; chemical modijcation Electrothermal (graphite furnace) atomic absorption spec- trometry (ETAAS

Canberra, University of

462

Thermal Analysis of Compound—Parabolic Concentrating Solar Energy Collectors  

Science Journals Connector (OSTI)

Despite the vast attention devoted recently to the design and development of effective collectors for harnessing solar energy at medium and high temperatures (>100° ... in the design of the compound parabolic con...

B. Norton; D. E. Prapas

1987-01-01T23:59:59.000Z

463

The Influence of Bromine Compounds on Combustion Processes  

Science Journals Connector (OSTI)

17 December 1963 research-article The Influence of Bromine Compounds on Combustion Processes C. F. Cullis A. Fish R. B. Ward Studies of the effect of small additions of hydrogen bromide and of four bromomethanes on...

1963-01-01T23:59:59.000Z

464

Process for synthesizing compounds from elemental powders and product  

DOE Patents [OSTI]

A process for synthesizing intermetallic compounds from elemental powders is described. The elemental powders are initially combined in a ratio which approximates the stoichiometric composition of the intermetallic compound. The mixed powders are then formed into a compact which is heat treated at a controlled rate of heating such that an exothermic reaction between the elements is initiated. The heat treatment may be performed under controlled conditions ranging from a vacuum (pressureless sintering) to compression (hot pressing) to produce a desired densification of the intermetallic compound. In a preferred form of the invention, elemental powders of Fe and Al are combined to form aluminide compounds of Fe[sub 3] Al and FeAl. 25 figures.

Rabin, B.H.; Wright, R.N.

1993-12-14T23:59:59.000Z

465

Compound and Elemental Analysis At Yellowstone Region (Hurwitz, Et Al.,  

Open Energy Info (EERE)

Compound and Elemental Analysis At Yellowstone Region (Hurwitz, Et Al., Compound and Elemental Analysis At Yellowstone Region (Hurwitz, Et Al., 2007) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Compound and Elemental Analysis At Yellowstone Region (Hurwitz, Et Al., 2007) Exploration Activity Details Location Yellowstone Caldera Geothermal Region Exploration Technique Compound and Elemental Analysis Activity Date Usefulness not indicated DOE-funding Unknown Notes In this paper, we present and evaluate a chemical dataset that includes the concentrations and fluxes of HCO3_, SO42_, Cl_, and F_ in rivers draining YNP for the 2002-2004 water years (1 October 2001 - 30 September 2004). These solutes were chosen because they are likely derived in part, from the magmatic volatiles CO2, SO2, H2S, HCl, HF (Symonds et al., 2001). Weekly to

466

Occurrence of pharmaceutically active and non-steroidal estrogenic compounds in three different wastewater recycling schemes in Australia  

Science Journals Connector (OSTI)

The discovery that natural and synthetic chemicals, in the form of excreted hormones and pharmaceuticals, as well as a vast array of compounds with domestic and industrial applications, can enter the environment via wastewater treatment plants and cause a wide variety of environmental and health problems even at very low concentrations, suggests the need for improvement of water recycling. Three Australian wastewater recycling schemes, two of which employ reverse osmosis (RO) technology, the other applying ozonation and biological activated carbon filtration, have been studied for their ability to remove trace organic contaminants including 11 pharmaceutically active compounds and two non-steroidal estrogenic compounds. Contaminant concentrations were determined using a sensitive analytical method comprising solid phase extraction, derivatization and GC with MS using selected ion monitoring. In raw wastewater, concentrations of analgesics and non-steroidal anti-inflammatory medications were comparable to those found in wastewaters around the world. Remarkably, removal efficiencies for the three schemes were superior to literature values and RO was responsible for the greatest proportion of contaminant removal. The ability of RO membranes to concentrate many of the compounds was demonstrated and highlights the need for continued research into monitoring wastewater treatment, concentrate disposal, improved water recycling schemes and ultimately, safer water and a cleaner environment.

Jawad H. Al-Rifai; Candace L. Gabelish; Andrea I. Schäfer

2007-01-01T23:59:59.000Z

467

Device for aqueous detection of nitro-aromatic compounds  

DOE Patents [OSTI]

This invention relates to a compact and portable detection apparatus for nitro-aromatic based chemical compounds, such as nitrotoluenes, dinitrotoluenes, and trinitrotoluene (TNT). The apparatus is based upon the use of fiber optics using filtered light. The preferred process of the invention relies upon a reflective chemical sensor and optical and electronic components to monitor a decrease in fluorescence when the nitro-aromatic molecules in aqueous solution combine and react with a fluorescent polycyclic aromatic compound. 4 figures.

Reagen, W.K.; Schulz, A.L.; Ingram, J.C.; Lancaster, G.D.; Grey, A.E.

1994-04-26T23:59:59.000Z

468

Permeation of acrylate compounds through four commercially available gloves  

E-Print Network [OSTI]

PERMEATION OF ACRYLATE COMPOUNDS THROUGH FOUR COMMERCIALLY AVAILABLE GLOVES A Thesis DAVID SAMUEL HORN Submitted to the Graduate College of Texas ARM University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE... May l986 Major Subject: Industrial Hygiene PERMEATION OF ACRYLATE COMPOUNDS THROUGH FOUR COMMERCIALLY AVAILABLE GLOVES A Thesis DAVID SAMUEL HORN Approved as to style and content by: ichar B. Ko en (Chairman of Conunittee) Harry uggs (Member...

Horn, David Samuel

2012-06-07T23:59:59.000Z

469

Bioluminescent Yeast Assay for Detection of Organotin Compounds  

Science Journals Connector (OSTI)

Organotin compounds are toxic and endocrine disrupting compounds, which have been intensively used as antifouling paints for ship hulls and thus are widely spread in the environment. ... (23) Adding the working steps together (3 h pregrowth of the yeast cells, robot-assisted pipetting and 3–5 h incubation), this assay gives results within one working day. ... with flakes of antifouling paint abraded from vessel hulls, resulting in patchy but locally intense contamination of sediments. ...

Grit Kabiersch; Johanna Rajasärkkä; Marja Tuomela; Annele Hatakka; Marko Virta; Kari Steffen

2013-05-13T23:59:59.000Z

470

Theoretical descriptions of compound-nuclear reactions: open problems & challenges  

E-Print Network [OSTI]

Compound-nuclear processes play an important role for nuclear physics applications and are crucial for our understanding of the nuclear many-body problem. Despite intensive interest in this area, some of the available theoretical developments have not yet been fully tested and implemented. We revisit the general theory of compound-nuclear reactions, discuss descriptions of pre-equilibrium reactions, and consider extensions that are needed in order to get cross section information from indirect measurements.

Brett V. Carlson; Jutta E. Escher; Mahir S. Hussein

2014-03-04T23:59:59.000Z

471

Comparison of Agricultural Runoff between Organic  

E-Print Network [OSTI]

Comparison of Agricultural Runoff between Organic Farming and Conventional Chemical Farming Nicole release #12;Organic Walnuts Filter strips Compost Organic pesticides Cover crops Monitoring of insects

472

Organic Solar Cells and Their Nanostructural Improvement  

Science Journals Connector (OSTI)

Organic solar cells comprised of organic semiconductors have attracted considerable attention in the ... photonics and electronics during the last decade. Organic semiconductors are a less expensive alternative t...

Serap Günes

2011-01-01T23:59:59.000Z

473

Lattice thermal expansion for normal tetrahedral compound semiconductors  

SciTech Connect (OSTI)

The cubic root of the deviation of the lattice thermal expansion from that of the expected value of diamond for group IV semiconductors, binary compounds of III-V and II-VI, as well as several ternary compounds from groups I-III-VI{sub 2}, II-IV-V{sub 2} and I-IV{sub 2}V{sub 3} semiconductors versus their bonding length are given straight lines. Their slopes were found to be 0.0256, 0.0210, 0.0170, 0.0259, 0.0196, and 0.02840 for the groups above, respectively. Depending on the valence electrons of the elements forming these groups, a formula was found to correlate all the values of the slopes mentioned above to that of group IV. This new formula which depends on the melting point and the bonding length as well as the number of valence electrons for the elements forming the compounds, will gives best calculated values for lattice thermal expansion for all compounds forming the groups mentioned above. An empirical relation is also found between the mean ionicity of the compounds forming the groups and their slopes mentioned above and that gave the mean ionicity for the compound CuGe{sub 2}P{sub 3} in the range of 0.442.

Omar, M.S. [Department of Physics, College of Science, University of Salahaddin, Arbil, Iraqi Kurdistan (Iraq)]. E-mail: dr_m_s_omar@yahoo.com

2007-02-15T23:59:59.000Z

474

Organic tanks safety program FY96 waste aging studies  

SciTech Connect (OSTI)

Uranium and plutonium production at the Hanford Site produced large quantities of radioactive by-products and contaminated process chemicals, which are stored in underground tanks awaiting treatment and disposal. Having been made strongly alkaline and then subjected to successive water evaporation campaigns to increase storage capacity, the wastes now exist in the physical forms of salt cakes, metal oxide sludges, and partially saturated aqueous brine solutions. The tanks that contain organic process chemicals mixed with nitrate/nitrite salt wastes may be at risk for fuel- nitrate combustion accidents. The purpose of the Waste Aging Task is to elucidate how chemical and radiological processes will have aged or degraded the organic compounds stored in the tanks. Ultimately, the task seeks to develop quantitative measures of how aging changes the energetic properties of the wastes. This information will directly support efforts to evaluate the hazard as well as to develop potential control and mitigation strategies.

Camaioni, D.M.; Samuels, W.D.; Linehan, J.C.; Clauss, S.A.; Sharma, A.K.; Wahl, K.L.; Campbell, J.A.

1996-10-01T23:59:59.000Z

475

Carbon nanotubes for organic electronics.  

E-Print Network [OSTI]

??This thesis investigated the use of carbon nanotubes as active components in solution processible organic semiconductor devices. We investigated the use of functionalized carbon nanotubes… (more)

Goh, Roland Ghim Siong

2008-01-01T23:59:59.000Z

476

Organic Power | Open Energy Information  

Open Energy Info (EERE)

Hydro, Wind energy Product: Irish project developer active in wind energy, combined heat and power from biomass and pumped hydro electrical storage. References: Organic...

477

Supporting Organizations | Nuclear Science | ORNL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Educational Outreach Publications and Reports News and Awards Supporting Organizations Nuclear Science Engineering Fusion & Materials for Nuclear Systems Nuclear Science Home |...

478

Supporting Organizations | Clean Energy | ORNL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

helping ensure America's energy independence, economic vitality, and environmental sustainability. Cross-disciplinary in design, EESD is organized into several divisions and...

479

Helpful Organizations | Department of Energy  

Energy Savers [EERE]

regional associations of legislative and executive officials. Energy Communities Alliance Energy Communities Alliance is an organization of local governments that are impacted...

480

Polyethylene passive samplers for measuring hydrophobic organic chemical concentrations in sediment porewaters and their use in predicting bioaccumulation in soft-shell clams (Mya arenaria) from sites near Boston, MA  

E-Print Network [OSTI]

In order to determine the hazards posed by hydrophobic organic compounds (HOCs) in sediment beds, the following areas of research were explored: (1) the use of polyethylene (PE) sheets as passive sampling devices in ...

Fernandez, Loretta A. (Loretta Ana)

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "organic compounds tetraphenylborate" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

IX. Standards for Student Organizations Standards of all Student Organizations  

E-Print Network [OSTI]

1 of 8 IX. Standards for Student Organizations Standards of all Student Organizations As stated to the same standards of conduct to which students are held on an individual basis. Standards for Fraternities on February 25, 1976 - the University has developed the following standards for fraternity/sorority life

Marsh, David

482

New Physics in a Copper-Iridium Compound | Advanced Photon Source  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

A Key Target for Diabetes Drugs A Key Target for Diabetes Drugs Molten Metal Solidifies into a New Kind of Glass Organic Polymers Show Sunny Potential A New Family of Quasicrystals Cool Muscles: Storing Elastic Energy for Flight Science Highlights Archives: 2013 | 2012 | 2011 | 2010 2009 | 2008 | 2007 | 2006 2005 | 2004 | 2003 | 2002 2001 | 2000 | 1998 | Subscribe to APS Science Highlights rss feed New Physics in a Copper-Iridium Compound August 6, 2013 Bookmark and Share (a) Cu-Ir chain of Sr3CuIrO6. Oxygen atoms surround both copper (Cu2+) and iridium (Ir4+) cations (ions positively charged due to the loss of electrons to the oxygen atoms, which become negatively-charged anions). The copper cation forms a planar arrangement with the surrounding oxygen anions, while the iridium cation resides at the center of an octahedral

483

Interested Parties - Organization for International Investment...  

Broader source: Energy.gov (indexed) [DOE]

Organization for International Investment Interested Parties - Organization for International Investment PI.pdf More Documents & Publications Interested Parties - Morgan Wright...

484

Degradation kinetics of aromatic organic solutes introduced into a heterogeneous aquifer  

SciTech Connect (OSTI)

Degradation rates of benzene, p-xylene, naphthalene, and o-dichlorobenzene have been determined in the Columbus, MS aquifer. The objective of this research was to measure the degradation of organic compounds in an aquifer, using pulse injection. Degradation rates of these compounds were calculated, and the rates were related to aquifer structure and hydrologic properties. the injection was made into the saturated zone of the unconfined aquifer. This technique is suggested for future field experiments because it distinguishes solute degradation from solute losses by sorption and evaporation and allows mass balance to be demonstrated throughout the course of the reaction in the aquifer. 18 refs., 6 figs., 3 tabs.

MacIntyre, W.G. (College of William and Mary, Gloucester Point, VA (United States)); Boggs, M. (Tennessee Valley Lab., Norris, TN (United States)); Antworth, C.P.; Stauffer, T.B. (Tyndall Air Force Base, Panama City, FL (United States))

1993-12-01T23:59:59.000Z

485

E-Print Network 3.0 - antimicrobial compounds produced Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

, isolation, identification of phenolic compounds from industry co-products, and plants. "Green" food... -grade solvents are being used to extract phenolic compounds from a variety...

486

E-Print Network 3.0 - antimicrobial compounds tylosin Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

, isolation, identification of phenolic compounds from industry co-products, and plants. "Green" food... -grade solvents are being used to extract phenolic compounds from a variety...

487

E-Print Network 3.0 - antifungal compound produced Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

requirements to produce the antifungal response and can provide a guide for the design of compounds... with this biological activity. Antifungal activity of these compounds...

488

E-Print Network 3.0 - analogues compounds lnap6i3 Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

millions of compounds can be examined in silico... compound. In particular, within the pharmaceutical industry, the use of virtual screening as a filter Source: Skop, Ahna -...

489

SPECIES DETERMINATION OF ORGANOMETALLIC COMPOUNDS USING ZEEMAN ATOMIC ABSORPTION SPECTROSCOPY WITH LIQUID CHROMATOGRAPHY  

E-Print Network [OSTI]

Compounds Using Zeeman Atomic Absorption Spectroscopy WithCompounds Using Zeeman ,Atomic Absorption Spectroscopy withcapabilities of Zeeman atomic absorption spectroscopy (ZAA)

Koizumi, H.

2011-01-01T23:59:59.000Z

490

E-Print Network 3.0 - arsenide-based ternary compounds Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

gallium arsenide-based... separately claimed breakthroughs in solar cell production. Gallium arsenide (GaAs) and related compounds... of manufacturing compound semiconductors...

491

E-Print Network 3.0 - ammonium compounds n-alkyl Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

which are incompatible with other compounds. Summary: compounds, fulminic acid Sodium carbon tetrachloride, carbon dioxide, water Sodium nitrite ammonium nitrate... chemicals...

492

E-Print Network 3.0 - ammonium compounds Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

which are incompatible with other compounds. Summary: compounds, fulminic acid Sodium carbon tetrachloride, carbon dioxide, water Sodium nitrite ammonium nitrate... chemicals...

493

E-Print Network 3.0 - ammonium compounds efecto Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

which are incompatible with other compounds. Summary: compounds, fulminic acid Sodium carbon tetrachloride, carbon dioxide, water Sodium nitrite ammonium nitrate... chemicals...

494

Chemical degradation of fluorosulfonamide fuel cell membrane polymer model compounds  

Science Journals Connector (OSTI)

Abstract The durability of a polymer electrolyte fuel cell membrane, along with high proton conductivity and mechanical performance is critical to the success of these energy conversion devices. Extending our work in perfluorinated membrane stability, aromatic trifluoromethyl sulfonamide model compounds were prepared, and their oxidative degradation was examined. The chemical structures for the models were based on mono-, di- and tri-perfluorinated sulfonamide modified phenyl rings. Durability of the model compounds was evaluated by exposure to hydroxyl radicals generated using Fenton reagent and UV irradiation of hydrogen peroxide. LC–MS results for the mono-substituted model compound indicate greater stability to radical oxidation than the di-substituted species; loss of perfluorinated fonamide side chains appears to be an important pathway, along with dimerization and aromatic ring hydroxylation. The tri-substituted model compound also shows loss of side chains, with the mono-substituted compound being a major oxidation product, along with a limited amount of hydroxylation and dimerization of the starting material.

Jamela M. Alsheheri; Hossein Ghassemi; David A. Schiraldi

2014-01-01T23:59:59.000Z

495

Enhancement of catalytic activities of serine proteases by tripeptides compounds  

Science Journals Connector (OSTI)

The tripeptide compounds, Glu-Arg-Pro-amide (ERPm), d-Pro-Thr-Trp-amide (dPTWm) and thioproline-Thr-Trp (tPTW), were obtained by screening of synthetic peptides for growth-inhibitory activity toward cultured transformed cells. The effects of these peptide compounds on proteases were investigated and the results showed that these compounds enhanced the amidolytic activity of serine proteases despite the fact that each reaction was carried out under optimal conditions. \\{ERPm\\} stimulated the activities of trypsin, chymotrypsin, thrombin, plasmin urokinase and elastase. dPTWm also showed similar effects except that toward chymotrypsin. tPTW elevated the activity only of trypsin, chymotrypsin and thrombin. Stimulation of trypsin activity by these compounds was also confirmed by using casein as a substrate. None of these compounds affected the amidolytic activities of metalloproteinases (MMP-1 and MMP-9), cysteine proteinases (m- and ?-calpains, cathepsin B and papain) or an exopeptidase (leucine aminopeptidase). The activation was at least partly due to the stabilization of the catalytic activity of proteases as well as prevention of autolysis.

Takaki Hiwasa; Sachiko Ogawa; Hisashi Kobayashi; Yoshimasa Ike

1996-01-01T23:59:59.000Z

496

Interaction of organic additives with ceramic surfaces in colloidal slurries  

SciTech Connect (OSTI)

Three different dispersants, a low molecular weight compound (aminoalkanol), a polymer (polyelectrolyte) and a block-co-polymer (block polyethylenoxide-polyacrylic acid) were investigated with AFM and rheology in an aqueous system in order to elucidate the influence of the size and structure of the molecule on the dispersion stabilization. The AFM studies indicate that the aminoalkanol gives repulsive forces due to electrostatic repulsion only. The polyelectrolyte seems to stabilize the dispersion with both steric and electrostatic repulsive forces. A new compound that was designed for pure steric stabilization in aqueous media a block-co-polymer consisting of a polar anchor block and a stabilizing neutral chain was investigated for its behavior. The AFM measurements show that it is likely that this compound causes repulsion of silicon nitride surfaces due to steric repulsion only. Rheological measurements of aqueous powder slurries show that the adsorption of the organic additives is of great importance. Due to a more silicon dioxide like acidic surface of the investigated Si{sub 3}N{sub 4}-powder the carboxylate anions of the block-co-polymer adsorb badly. Therefore, no sterically repulsive forces can be built up. This then causes an increase in the slurry`s viscosity.

Sigmund, W.M.; Wang, L.; Sindel, J.; Rotov, M.; Aldinger, F. [Univ. of Stuttgart (Germany). Inst. fuer Nichtmetallische Anorganische Materialien

1997-08-01T23:59:59.000Z

497

Census and viewing of organisms  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Census and viewing of organisms Census and viewing of organisms Name: m hariaczyi Status: N/A Age: N/A Location: N/A Country: N/A Date: Around 1993 Question: How many organisms exist in the world today? What is the most powerful microscope that could be used for viewing organism? Replies: The most powerful microscope is called an electron microscope, which can be used for viewing entire organisms, although few organisms are small enough to see all of them at high magnifications allowed by this microscope. So most often its used to look at fixed sections of organisms. Since the electron microscope only works in a vacuum, with no air, you cannot look at live organisms. To do that, probably the most powerful microscope is called a Nomarski, or in technical terms, a "differential interference contrast" microscope. This is a modification of a normal light microscope that allows better contrast in living tissue. It is not any more powerful than a light microscope, and is much less powerful than an electron microscope, but it allows you to see living things much better.

498

Self-organized combinatorial optimization  

Science Journals Connector (OSTI)

In this paper, we present a self-organized computing approach to solving hard combinatorial optimization problems, e.g., the traveling salesman problem (TSP). First of all, we provide an analytical characterization of such an approach, by means of formulating ... Keywords: Combinatorial optimization, Fitness network, Microscopic characteristics, NP-complete, Phase transition, Self-organized computing, Traveling salesman problem

Jiming Liu; Yu-Wang Chen; Gen-Ke Yang; Yong-Zai Lu

2011-08-01T23:59:59.000Z

499

Acid Catalysis in Modern Organic  

E-Print Network [OSTI]

catalyst for organic synthesis". That is the starting sentence of this book by Yamamoto and Ishihara, which follows their earlier book "Lewis Acids in Organic Synthesis (2000)", and covers the new developments book that should be available in every well-equipped chemistry library. It will certainly be helpful

Snyder, Scott A.

500

Special Issue: Organic User Interfaces  

Science Journals Connector (OSTI)

......of materials selected to foster organic designs, the authors paint an interesting portrait of the task of conveying OUI to the...M., Lee J. MoleBot: An Organic Usert-Interface-Based Robot That Provides Users with Richer Kinetic Interactions. Interact......

Audrey Girouard; Roel Vertegaal; Ivan Poupyrev

2013-03-01T23:59:59.000Z