A gas-phase reactivity study of OH radicals with 1,1-dichloroethene and cis- and trans-1,2-dichloroethene over the temperature range 240-400 K
- National Institute of Standards and Technology, Gaithersburg, MD (USA)
Rate constants have been measured for the reactions of hydroxyl radicals with the three dichloroethenes over the temperature range 240-400 K by using the flash photolysis -resonance fluorescence technique. The Arrhenius equations derived from the data obtained predominantly at 35-Torr total pressure (in Ar) are (in units of cm{sub 3} molecule{sup {minus}1} s{sup {minus}1})k(trans-1,2-dichloroethene) = (9.37 {plus minus} 1.47) {times} 10{sup {minus}13} exp((283 {plus minus} 85)/T), k(cis-1,2-dichloroethene) = (2.21 {plus minus} 0.34) {times} 10{sup {minus}12} exp((65 {plus minus} 89)/T), and k(1,1-dichloroethene) = (2.30 {plus minus} 0.44) {times} 10{sup {minus}12} exp((472 {plus minus} 105)/T). There was no apparent effect of pressure on the rate constant for the reaction of OH with trans-1,2-dichloroethene over the range 5-50 Torr (with Ar).
- OSTI ID:
- 5774908
- Journal Information:
- Journal of Physical Chemistry; (USA), Journal Name: Journal of Physical Chemistry; (USA) Vol. 95:1; ISSN 0022-3654; ISSN JPCHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400201* -- Chemical & Physicochemical Properties
ARRHENIUS EQUATION
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
DATA
DECOMPOSITION
EQUATIONS
EXPERIMENTAL DATA
HYDROXYL RADICALS
INFORMATION
KINETICS
MEASURING METHODS
MEDIUM TEMPERATURE
NUMERICAL DATA
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOLYSIS
RADICALS
REACTION KINETICS