Kinetics of OH reactions with the atmospheric sulfur compounds H/sub 2/S, CH/sub 3/SH, CH/sub 3/SCH/sub 3/, and CH/sub 3/SSCH/sub 3/
Journal Article
·
· J. Phys. Chem.; (United States)
The flash photolysis-resonance fluorescence technique has been employed to study the kinetics of hydroxyl radical reactions with H/sub 2/S (k/sub 1/), CH/sub 3/SH (k/sub 2/), CH/sub 3/SCH/sub 3/ (k/sub 3/), and CH/sub 3/SSCH/sub 3/ (k/sub 4/) over the temperature range 244 to 367/sup 0/K. The following Arrhenius expressions adequately describe the measured rate constants as a function of temperature (units are cm/sup 3/ molecule/sup -1/ s/sup -1/): k/sub 1/ = (6.4 +- 1.3) x 10/sup -12/ exp((55 +- 58)/T); k/sub 2/ = (1.15 +- 0.39) x 10/sup -11/ exp((+338 +- 100)/T); k/sub 3/ = (6.8 +- 1.1) x 10/sup -12/ exp((-138 +- 46)/T); k/sub 4/ = (5.9 +- 3.3) x 10/sup -11/ exp((+380 +- 160)/T). The results are compared with previous investigations, and their implications regarding reaction mechanisms and atmospheric sulfur chemistry are discussed.
- Research Organization:
- Georgia Inst. of Tech., Atlanta
- OSTI ID:
- 6269049
- Journal Information:
- J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 85:18; ISSN JPCHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
500100 -- Environment
Atmospheric-- Basic Studies-- (-1989)
54 ENVIRONMENTAL SCIENCES
ARRHENIUS EQUATION
ATMOSPHERIC CHEMISTRY
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHEMISTRY
DATA
DECOMPOSITION
EQUATIONS
EXPERIMENTAL DATA
FLUORESCENCE
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
HYDROXYL RADICALS
INFORMATION
KINETICS
LOW TEMPERATURE
LUMINESCENCE
MEDIUM TEMPERATURE
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXYGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOLYSIS
RADICALS
REACTION KINETICS
SULFIDES
SULFUR COMPOUNDS
THIOLS
WATER
400201* -- Chemical & Physicochemical Properties
500100 -- Environment
Atmospheric-- Basic Studies-- (-1989)
54 ENVIRONMENTAL SCIENCES
ARRHENIUS EQUATION
ATMOSPHERIC CHEMISTRY
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHEMISTRY
DATA
DECOMPOSITION
EQUATIONS
EXPERIMENTAL DATA
FLUORESCENCE
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
HYDROXYL RADICALS
INFORMATION
KINETICS
LOW TEMPERATURE
LUMINESCENCE
MEDIUM TEMPERATURE
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXYGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOLYSIS
RADICALS
REACTION KINETICS
SULFIDES
SULFUR COMPOUNDS
THIOLS
WATER