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

Related Subjects

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