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Kinetics and mechanism of the oxidation of dimethylsulfoxide (DMSO) and methanesulfinate (MSI-) by OH radicals in aqueous medium

Title data

Bardouki, H. ; Barcellos da Rosa, Marcelo ; Mihalopoulos, N. ; Palm, Wolf-Ulrich ; Zetzsch, Cornelius:
Kinetics and mechanism of the oxidation of dimethylsulfoxide (DMSO) and methanesulfinate (MSI-) by OH radicals in aqueous medium.
In: Atmospheric Environment. Vol. 36 (2002) Issue 29 . - pp. 4627-4634.
ISSN 1873-2844
DOI: https://doi.org/10.1016/S1352-2310(02)00460-0

Abstract in another language

Kinetics and product distribution of the reaction of DMSO and methanesulfinate (MSI-) with OH radicals and H2O2 in the aq. phase are reported in this work. DMSO is found to be very stable in pure water or in solns. contg. H2O2. On the other hand, it reacts very rapidly (k=4.5109 M-1 s-1) with OH radicals. MSI- has been identified as the main intermediate product, while methanesulfonate (MS-) and sulfate were the final products due to the very fast reaction of MSI- with OH radicals (k=1.21010 M-1 s-1). MS- has been identified as the major end product (yield higher than 95%) of both DMSO and MSI- reactions by OH radicals in aq. solns. The potential implications of these reactions for the biogenic sulfur cycle in the atm. are presented and discussed.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER26038
Institutions of the University: Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Earth Sciences
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Research Institutions
Research Institutions > Research Centres
Result of work at the UBT: Yes
DDC Subjects: 500 Science
Date Deposited: 12 Nov 2015 07:43
Last Modified: 12 Nov 2015 07:43
URI: https://eref.uni-bayreuth.de/id/eprint/22235