A flash photolysis resonance fluorescence kinetics study of ground-state sulfur atoms. III. Rate parameters for reaction of S(3P) with ethylene episulfide

Absolute rate constants for the reaction of S(³P) with ethylene episulfide were measured over a C₂H₄S concentration range of 5, a total pressure of 20–200 tort, and a flash intensity range of ?4. Over this range of variables, the bimolecular rate constant was found to be invariant. Because of limitations imposed by the physical properties of the reactant C₂H₄S, temperature variations were necessarily held to the range 298–355°K. The bimolecular rate constant was found to be invariant over this limited temperature range, having a value of (4.47 ± 0.26) × 10^?11 cm³ molec.^?1 sec^?1. The possible influence of this reaction in studies of the S(³P)–ethylene system are discussed.