Products of the reaction between Cl and HOCl

Publisher Website
Google Scholar
Abstract
There are two possible channels for the reaction between Cl and HOCl leading to the products HCl+ClO and Cl2+OH. The product of the rate constant for the reaction OH+Cl2→products and the equilibrium constant for the reaction Cl+HOCl?Cl2+OH is (1.8±0.5)×10−12 cm3 molecules−1 s−1, in excellent agreement with our recently measured rate constant for the reaction of Cl with HOCl of (1.9±0.3)×10−2 cm3 molecules−1 s−1. This suggests that the products of the reaction of Cl with HOCl are predominantly Cl2+OH rather than HCl+ClO. The reaction Cl+HOCl→Cl2+OH is equivalent to HOCl photolysis in the stratosphere and need not be included in models of ozone depletion due to ClX. (AIP)