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EPR kinetic study of the reactions of CF3Br with H atoms and OH radicals

โœ Scribed by G. Le Bras; J. Combourieu

Publisher
John Wiley and Sons
Year
1978
Tongue
English
Weight
452 KB
Volume
10
Category
Article
ISSN
0538-8066

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โœฆ Synopsis

Reactions of CFSBr with H atoms and OH radicals have been studied a t room temperature a t 1-2 torr pressures in a discharge flow reactor coupled to an EPR spectrometer. The rate constant of the reaction H + CF3Br -CF3 + HBr (1) was found to be k l = (3.27 f 0.34) X cm:'/moleesec was determined for ka. When H atoms were in excess compared to NO2, used to produce OH radicals, a noticeable reactivity of OH was observed as a result of the reaction OH + HBr --H20 + Br, HBr being produced from reaction (1). cmC3/molec-sec. For the reaction of OH with CF3Br (8) an upper limit of 1 X

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