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Methanesulfonic acid (MSA) and SO formation from the addition channel of atmospheric dimethyl sulfide oxidation. | LitMetric

Methanesulfonic acid (MSA) and SO formation from the addition channel of atmospheric dimethyl sulfide oxidation.

Chem Commun (Camb)

Atmospheric Chemistry Department (ACD), Leibniz Institute for Tropospheric Research (TROPOS), Permoserstraße. 15, 04318 Leipzig, Germany.

Published: December 2024

AI Article Synopsis

  • Methylsulfonyloxy radicals (CHSO) mainly react with H-atom donors, leading to the formation of methanesulfonic acid (MSA).
  • This process competes with the thermal decomposition of CHSO, which produces sulfur monoxide (SO).
  • The ratio of MSA to SO is influenced by the temperature, as higher temperatures increase CHSO decomposition rates.

Article Abstract

The formation of methanesulfonic acid (MSA) from the dimethyl sulfide addition channel primarily proceeds the reaction of methylsulfonyloxy radicals (CHSO) with H-atom donors, other than HO radicals. In competition with it, thermal decomposition of CHSO results in SO generation. The MSA/SO ratio is driven by the temperature dependence of CHSO decomposition.

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Source
http://dx.doi.org/10.1039/d4cc05913aDOI Listing

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