Physical-property data on fluorinated propanes and butanes as CFC and HCFc alternatives. Rept. for Aug 88-Jun 91
The paper discusses results of the measurement and estimation of the physical properties of fluorinated propane derivatives as second generation alternatives for currently used CFC and HCFC chemicals. One fluorinated ether was also studied. A total of 22 compounds were investigated with boiling points of -34.6 to 76.7 C. The measured properties presented for these compounds are: melting point, boiling point, vapor pressure below the boiling point, heat of vaporization, critical properties (temperature, density, and pressure), liquid densities, and liquid-phase heat capacities. Measured vapor pressures are reported from below the boiling point to the critical point for two of these compounds: CF3OCF2H (b.p. = 34.6 C and Tc = 80.7 C) and CF3CHFCF2H (b.p. = 6.5 C and Tc = 141.1 C). Vapor pressures and liquid-phase densities were also measured for CFC-12 in order to judge the accuracy of the experimental methods used. The measured vapor pressures were also compared with vapor pressures estimated using modified corresponding states methods to evaluate the accuracy of the estimation methods.
- Research Organization:
- Clemson Univ., SC (United States). Dept. of Chemistry and Geology
- OSTI ID:
- 7271416
- Report Number(s):
- PB-92-206507/XAB; CNN: EPA-R-815134
- Resource Relation:
- Other Information: Presented at the International Conference on CFC and Halon Alternatives, Baltimore, MD., December 3-5, 1991. Prepared in cooperation with Electric Power Research Inst., Palo Alto, CA. Sponsored by Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
FLUORINE COMPOUNDS
PHYSICAL PROPERTIES
FREONS
MATERIAL SUBSTITUTION
AIR POLLUTION CONTROL
BOILING POINTS
BUTANE
ETHERS
MELTING POINTS
PROPANE
SPECIFIC HEAT
THERMODYNAMIC PROPERTIES
VAPOR PRESSURE
ALKANES
CONTROL
HALOGEN COMPOUNDS
HALOGENATED ALIPHATIC HYDROCARBONS
HYDROCARBONS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
POLLUTION CONTROL
TRANSITION TEMPERATURE
540120* - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)