A temperature dependent kinetic study of the reaction of the hydroxyl radical with CH[sub 3]Br
Journal Article
·
· Geophysical Research Letters (American Geophysical Union); (United States)
- National Inst. of Standards and Technology, Gaithersburg, MD (United States)
Rate constants have been measured for the gas phase reaction of the hydroxyl radical (OH) with CH[sub 3]Br over the temperature range 250 to 400 K. The Arrhenius expression k = 5.79 [times] 10[sup [minus]12] exp([minus]1,560/T) cm[sup 3] molecule[sup [minus]1] s[sup [minus]1] was derived from the kinetic data. From the rate constant at 277 K, the tropospheric lifetime of CH[sub 3]Br with respect to reaction with OH is estimated to be 2.2 years and the overall atmospheric lifetime to be 2.1 years. 20 refs., 1 fig., 1 tab.
- OSTI ID:
- 7065985
- Journal Information:
- Geophysical Research Letters (American Geophysical Union); (United States), Journal Name: Geophysical Research Letters (American Geophysical Union); (United States) Vol. 19:24; ISSN GPRLAJ; ISSN 0094-8276
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
54 ENVIRONMENTAL SCIENCES
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
ARRHENIUS EQUATION
ATMOSPHERIC CHEMISTRY
BROMINATED ALIPHATIC HYDROCARBONS
CHEMICAL REACTION KINETICS
CHEMISTRY
EARTH ATMOSPHERE
EQUATIONS
HALOGENATED ALIPHATIC HYDROCARBONS
HYDROXYL RADICALS
KINETICS
LIFETIME
METHYL BROMIDE
ORGANIC BROMINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OZONE
RADICALS
REACTION KINETICS
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE
TEMPERATURE RANGE 0065-0273 K
TEMPERATURE RANGE 0273-0400 K
TROPOSPHERE
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
ARRHENIUS EQUATION
ATMOSPHERIC CHEMISTRY
BROMINATED ALIPHATIC HYDROCARBONS
CHEMICAL REACTION KINETICS
CHEMISTRY
EARTH ATMOSPHERE
EQUATIONS
HALOGENATED ALIPHATIC HYDROCARBONS
HYDROXYL RADICALS
KINETICS
LIFETIME
METHYL BROMIDE
ORGANIC BROMINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OZONE
RADICALS
REACTION KINETICS
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE
TEMPERATURE RANGE 0065-0273 K
TEMPERATURE RANGE 0273-0400 K
TROPOSPHERE