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Title: Branching ratio for the hydrogen atom product channel in the reaction of ground-state atomic oxygen with ethylene

Abstract

The branching ratio, ..cap alpha../sub 1/, for the H + C/sub 2/H/sub 3/O product channel of the O(/sup 3/P) + C/sub 2/H/sub 3/O reaction was determined from measured H- and O-atom profiles in this flash photolysis-resonance fluorescence study. The relative detection sensitivity of the system for H and O atoms was determined experimentally. A chemical model was used to describe the reaction mechanism together with the relative detection sensitivity, and a value of ..cap alpha../sub 1/ = 0.27 +/- 0.05 was derived at 300 K. At higher temperatures, the value of ..cap alpha../sub 1/ appears to increase slightly. Possible reasons for this increase are discussed. 30 references, 2 figures, 7 tables.

Authors:
; ;
Publication Date:
Research Org.:
Brookhaven National Lab., Upton, NY
OSTI Identifier:
5825960
DOE Contract Number:
AC02-76CH00016
Resource Type:
Conference
Resource Relation:
Journal Name: J. Phys. Chem.; (United States); Journal Volume: 90:3; Conference: International conference on chemical kinetics, Gaithersburg, MD, USA, 17-19 Jun 1985
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ETHYLENE; CHEMICAL REACTION YIELD; PHOTOLYSIS; RESONANCE FLUORESCENCE; OXIDES; OXYGEN; CHEMICAL REACTION KINETICS; EXPERIMENTAL DATA; GROUND STATES; MEDIUM TEMPERATURE; MEETINGS; TRANSIENTS; ALKENES; CHALCOGENIDES; CHEMICAL REACTIONS; DATA; DECOMPOSITION; ELEMENTS; ENERGY LEVELS; FLUORESCENCE; HYDROCARBONS; INFORMATION; KINETICS; LUMINESCENCE; NONMETALS; NUMERICAL DATA; ORGANIC COMPOUNDS; OXYGEN COMPOUNDS; PHOTOCHEMICAL REACTIONS; REACTION KINETICS; YIELDS; 400500* - Photochemistry

Citation Formats

Smalley, J.F., Nesbitt, F.L., and Klemm, R.B.. Branching ratio for the hydrogen atom product channel in the reaction of ground-state atomic oxygen with ethylene. United States: N. p., 1986. Web.
Smalley, J.F., Nesbitt, F.L., & Klemm, R.B.. Branching ratio for the hydrogen atom product channel in the reaction of ground-state atomic oxygen with ethylene. United States.
Smalley, J.F., Nesbitt, F.L., and Klemm, R.B.. 1986. "Branching ratio for the hydrogen atom product channel in the reaction of ground-state atomic oxygen with ethylene". United States. doi:.
@article{osti_5825960,
title = {Branching ratio for the hydrogen atom product channel in the reaction of ground-state atomic oxygen with ethylene},
author = {Smalley, J.F. and Nesbitt, F.L. and Klemm, R.B.},
abstractNote = {The branching ratio, ..cap alpha../sub 1/, for the H + C/sub 2/H/sub 3/O product channel of the O(/sup 3/P) + C/sub 2/H/sub 3/O reaction was determined from measured H- and O-atom profiles in this flash photolysis-resonance fluorescence study. The relative detection sensitivity of the system for H and O atoms was determined experimentally. A chemical model was used to describe the reaction mechanism together with the relative detection sensitivity, and a value of ..cap alpha../sub 1/ = 0.27 +/- 0.05 was derived at 300 K. At higher temperatures, the value of ..cap alpha../sub 1/ appears to increase slightly. Possible reasons for this increase are discussed. 30 references, 2 figures, 7 tables.},
doi = {},
journal = {J. Phys. Chem.; (United States)},
number = ,
volume = 90:3,
place = {United States},
year = 1986,
month = 1
}

Conference:
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  • Chlorinated hydrocarbons frequently occur in wastes and present a major pollution hazard from waste incinerators. Compounds such as chlorinated olefins are toxic and carcinogenic by themselves and their oxidation and pyrolysis products may be involved in the formation of highly toxic chloro-furans and ,-dioxins. In order to influence the incineration process, such that hazardous emissions are reduced, kinetic models based on realistic kinetic data are needed. Few measurements on individual oxidation reactions of chloro-ethylenes are available for the 700-1500 K regime of prime incineration interest. We have recently reported on the reactions of ground state oxygen atoms with monochloro-ethylene, (1)more » 1,1-dichloro-ethylene (2) and trans 1,2-dichloro-ethylene (3) in the 290-1200 K range, and compared these to ethylene. The series is now expanded to trichloro-ethylene (4), one of the compounds most commonly encountered in municipal wastes.« less
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