Temperature dependence of the absolute rate constant for the reaction of ozone with dimethyl sulfide

Decomposition of sulfur compounds by radiolysis: II. By-products and mechanisms

“…Previous studies reported that the rate constants (k: all k presented in this paper evaluated at 298 K) of the O 3 reaction with the H 2 S and (CH 3 ) 2 S are 2.0 Â 10 À20 cm 3 molecule À1 s À1 and 2.2 Â 10 À21 cm 3 molecule À1 s À1 , respectively [20,21]. These values are smaller than those of the OH radical reaction with the sulfur compounds, which play a more important role during the EB process (kH 2 S = 4.6 Â 10 À12 , kCH 3 [22][23][24].…”

Rate constants for the reaction of ozone with n-butyl, s-butyl and t-butyl methyl sulfides

“…Very recently, our group determined the rate constants for the reaction of ozone with DMS and DES (diethyl sulfide), and more accurate results were obtained [18,19] . Temperature dependence of the absolute rate constant for the reaction of ozone with dimethyl sulfide was also recently reported [20] . In this work, we present the first kinetic study on the ozone reactions with n-butyl methyl sulfide (n-BMS, CH 3 CH 2 CH 2 CH 2 SCH 3 ), sec-butyl methyl sulfide (s-BMS, (CH 3 ) 2 CHCH 2 SCH 3 ) and tert-butyl methyl sulfide (t-BMS, (CH 3 ) 3 CSCH 3 ) under nearly real atmosphere conditions and with the elimination of effect of OH radicals in our smog chamber.…”

The impact of HS radicals on the measured rate constant of H2S with OH radicals

“…The kinetic experiments were carried out in a previously described system [19,20], which was modified by replacing the cubic ligneous chamber to a thermostatic chamber (1. A gas chromatograph (GC-6AM, Shimadzu, Japan) equipped with a flame photometer detector (FPD) was used for quantitative analysis of H 2 S. H 2 S in the reaction mixtures was separated on a 3 m × 4 mm glass column packed with 20% SE 30 on Chromosorb P (60-80 mesh).…”