Rate constants for the reactions of OH with HFC-134a (CH[sub 3]CH[sub 2]F) and HFC-134 (CHF[sub 2]CHF[sub 2])

Journal Article · Fri Jul 09 00:00:00 EDT 1993 · Geophysical Research Letters (American Geophysical Union); (United States)

DOI:https://doi.org/10.1029/93GL01336· OSTI ID:6028197

DeMore, W B

This paper presents the results of experimental measurements of the rate constants for the reaction of OH with HFC-134a (CF[sub 3]CH[sub 2]F) and with HFC-134 (CF[sub 2]HCF[sub 2]H). The rate constants were measured relative to reaction rates with methane, methyl chloroform (CH[sub 3]CCl[sub 3]), and HFC-125 (CF[sub 3]CHF[sub 2]). The measurements were done at atmospheric pressure, in the temperature range 298-358 K, in a slow-flow photochemical reactor. These constants are important for predicting the atmospheric lifetimes of these compounds, which are being considered as substitutes for chlorine containing CFC compounds for use in refrigeration systems.

• OSTI ID: 6028197
• Journal Information: Geophysical Research Letters (American Geophysical Union); (United States), Vol. 20:13; ISSN 0094-8276
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
54 ENVIRONMENTAL SCIENCES
FLUORINATED ALIPHATIC HYDROCARBONS
CHEMICAL REACTION KINETICS
HYDROXYL RADICALS
CHLORINATED ALIPHATIC HYDROCARBONS
CHLOROFLUOROCARBONS
MEDIUM PRESSURE
METHANE
REFRIGERANTS
TEMPERATURE RANGE 0273-0400 K
ALKANES
FLUIDS
HALOGENATED ALIPHATIC HYDROCARBONS
HYDROCARBONS
KINETICS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
RADICALS
REACTION KINETICS
TEMPERATURE RANGE
WORKING FLUIDS
400201* - Chemical & Physicochemical Properties
540120 - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)