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Kinetics and mechanism of the Cl + CO reaction in air

✍ Scribed by Arlene D. Hewitt; Karen M. Brahan; Gwen D. Boone; Scott A. Hewitt

Publisher: John Wiley and Sons
Year: 1996
Tongue: English
Weight: 589 KB
Volume: 28
Category: Article
ISSN: 0538-8066
DOI: 10.1002/(sici)1097-4601(1996)28:10<763::aid-kin7>3.0.co;2-l

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✦ Synopsis

Long-path FTlR spectroscopy was used to study the kinetics and mechanism of the reaction of CI atoms with CO in air. The relative rate constants at 298 K and 760 torr for the forward direction of the reaction of CI with I3CO and the reaction of CI1'C0 with 0, were hl = (3.4 2 0 8) X cm3 molecule-' s-' and k, = ( 4 3 2 3.2) X lo-" cm3 molecule-' s -' , respectively (all uncertainty limits are 2a) The rate constant for the net loss of I3CO due to reaction with CI in 1 atm of air at 298 K was kC,+COobs = ( 3 0 2 0.6) X lo-'* cm3 molecule-' s -' The only observed carbon-containing product of the CI + ',CO reaction was ',CO,, with a yield of 109 T 18%. Our results are in good agreement with extrapolations from previous studies The reaction mechanism and the implications for laboratory studies and tropospheric chemistry are discussed 0 1996

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