Observation of DMSO and CH(3)S(O)OH from the gas phase reaction between DMS and OH
Products and mechanisms have been investigated for the reactions between dimethylsulphide (DMS) and dimethylsulphoxide (DMSO) and the hydroxyl radical (OH) in the presence of NO(x). All of the experiments were performed in a 480 L reaction chamber, applying Fourier transform infrared (FT-IR) spectroscopy and ion chromatography as the analytical techniques. In addition to the sulphur containing products that are known to be produced from the gas phase reaction between DMS and OH (SO(2), dimethylsulphone, methanesulphonic acid, H(2)SO(4)), DMSO and methanesulphic acid (CH(3)S(O)OH) were also observed as products. Only SO(2) and DMSO(2) were found as sulphur containing products in the reaction between DMSO and OH. Based on these new results a mechanism is proposed for the atmospheric oxidation of DMS and DMSO by OH radicals.
Bibliographic Reference: Article: Journal of Atmospheric Chemistry (1995)
Record Number: 199512108 / Last updated on: 1996-01-15
Original language: en
Available languages: en