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Formation of sulfur dioxide and methanesulfonic acid in the photooxidation of dimethyl sulfide in the air
Author(s) -
Hatakeyama Shiro,
Okuda Michio,
Akimoto Hajime
Publication year - 1982
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/gl009i005p00583
Subject(s) - methanesulfonic acid , dimethyl sulfide , sulfur dioxide , sulfur , sulfuric acid , yield (engineering) , chemistry , sulfide , sulfate , inorganic chemistry , environmental chemistry , organic chemistry , materials science , metallurgy
Photooxidation of dimethyl sulfide (DMS) in air in the presence of NO was studied. Sulfur dioxide (SO 2 ) and methanesulfonic acid (CH 3 SO 3 H) are major sulfur‐containing products. In the reaction systems of DMS‐NO‐air with low initial NO concentration and DMS‐CH 3 ONO‐air, in which OH radical‐initiated photooxidation prevails, the yield of SO 2 was determined to be 20.7 ± 1.2 %. The yield of methanesulfonic acid is more than 50 % of the consumed DMS. Sulfuric acid was also detected as a minor product with a yield of less than 2 %. The implications of these results on the atmospheric sulfur cycle are discussed.