Abstract
Rate constants for the reaction of OH radicals with trans-1,2-dichloroethene and 1,1-dichloroethene have been determined at a pressure of 1.6 Torr and at T = 298 ± 2 K using the discharge-flow technique. The same method was used to study for the first time the kinetics of the reactions of atomic Cl with trans-1,2-dichloroethene and with 1,1-dichloroethene at low pressure. The values obtained for the rate constants for the Cl-atom reactions are significantly lower than those published previously, which refer to atmospheric pressure. The rate coefficients are therefore likely to be strongly pressure dependent over the range 1.6–760 Torr. The value obtained at low pressure may be considered as the upper limit of the rate constant for the abstraction channel. The kinetic data obtained are summarised below.
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