Jn. Crowley et al., TEMPERATURE-DEPENDENT RATE CONSTANTS FOR THE GAS-PHASE REACTION BETWEEN OH AND CH3OCL, Journal of physical chemistry, 100(9), 1996, pp. 3601-3606
The reaction between OH radicals and CH3OCl was investigated by the me
thod of laser-photolysis/resonance fluorescence. Rate constants were o
btained directly at several temperatures by monitoring the decay of OH
radicals in a large excess of CH3OCl. The Arrhenius expression for th
e rate constant is given by k(4)(250-341 K) = (2.4 +/- 0.8) x 10(-12)
exp(-(360 +/- 100)/T) cm(3) molecule(-1) s(-1). No pressure dependence
was observed between 30 and 300 Torr of argon. On the basis of this k
inetic data, the reaction with OH can be considered a relatively unimp
ortant removal process for CH3OCl in the polar stratosphere.