Reaction probabilities of ClONO2 on ice

The reaction probabilities of ClONO\-2 on ice surface were determined by using a flow tube reactor attached with a photoionization detector. The growth rate of HOCl was used to obtain reaction probabilities. The measured reaction probabilities depended on temperature and flow velocity. The reaction proceeded efficiently at temperature range of 190K to 200K. The reaction probability was 0 0023 at 198K ( v =100 cm/s). The result was in good agreement with that of Abbatt et al.