Kinetic study of some elementary reactions of sulfur compounds including reactions of S and SO with OH radicals

The reactions of S + OH → SO + H (1) and SO + OH → SO 2 + H (2) were studied in a discharge flow reactor coupled to an EPR spectrometer. The rate constants obtained under the pseudo‐first‐order conditions with an excess of S or SO were found to be k 1 = (6.6 ± 1.4) × 10 −11 and k 2 = (8.4 ± 1.5) × 10 −11 at room temperature. Units are cm 3 /molec·sec. Besides no reactivity was observed between S and CO 2 at 298 K and between CIO and SO 2 up to 711 K.