✦ LIBER ✦

Kinetic study of the reactions of Br2 with OH and OD

✍ Scribed by Y. Bedjanian; G. Le Bras; G. Poulet

Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 173 KB
Volume: 31
Category: Article
ISSN: 0538-8066
DOI: 10.1002/(sici)1097-4601(1999)31:10<698::aid-jck3>3.0.co;2-o

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✦ Synopsis

The kinetics of the reactions OH ϩ Br 2 : HOBr ϩ Br (1) and OD ϩ Br 2 : DOBr ϩ Br (3) have been studied in the temperature range 230-360 K and at total pressure of 1 Torr of helium using the discharge-flow mass spectrometric method. The following Arrhenius expressions were obtained either from the kinetics of product formation (HOBr, DOBr) in excess of Br 2 over OH and OD or from the kinetics of Br 2 consumption in excess of OH and OD:

For the reaction channels of the title reactions: OH ϩ Br 2 : BrO ϩ HBr and OD ϩ Br 2 : BrO ϩ DBr, the upper limits of the branching ratios were found to be 0.03 and 0.02 at T ϭ 320 K, respectively.

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