Articles | Volume 20, issue 5
Atmos. Chem. Phys., 20, 2695–2707, 2020
https://doi.org/10.5194/acp-20-2695-2020
Atmos. Chem. Phys., 20, 2695–2707, 2020
https://doi.org/10.5194/acp-20-2695-2020

Research article 04 Mar 2020

Research article | 04 Mar 2020

Kinetic and mechanistic study of the reaction between methane sulfonamide (CH3S(O)2NH2) and OH

Matias Berasategui et al.

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We have determined the rate coefficient and mechanism for the reaction of the OH radical with methane sulphonamide, a trace gas which has recently been found in the atmosphere. The rate coefficient is 1.4 × 10−13 cm3 molec.−1 s−1, which indicates a tropospheric lifetime of > 2 months. The observation of CO, CO2, SO2, HNO3, HCOOH, and N2O products enabled us to derive a detailed reaction mechanism for the reaction, which proceeds predominantly by H abstraction from the CH3 group.
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