Products and Mechanism of the Reaction between NO3 and Dimethylsulphide in Air

  • J. Hjorth
  • N. Jensen
  • C. Lohse
  • G. Restelli
  • H. Skov
Chapter

Summary

The reaction between NO3 and DMS in air has been studied in a 480 L reaction chamber. Intermediates and end products were identified by FT-IR and ion chromatography. HNO3, CH2O, SO2 and methanesulphonic acid were found to be main products of the reaction, with the latter as the most abundant sulphur containing product. Organic peroxynitrates and CH3SNO2 have been identified as intermediates from their characteristic spectral features. Based on the results obtained a mechanism for the reaction DMS + NO3 is proposed, which has hydrogen abstraction as the first step. In the marine troposphere this reaction with formation of HNO3 which is removed by deposition may represent an efficient nighttime sink for N0x.

Keywords

Hydrogen Abstraction Carbon Disulphide Methyl Sulfinyl Abundant Sulphur Methanesulphonic Acid 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© ECSC, EEC, EAEC, Brussels and Luxembourg 1990

Authors and Affiliations

  • J. Hjorth
    • 1
    • 2
  • N. Jensen
    • 1
    • 2
  • C. Lohse
    • 1
    • 2
  • G. Restelli
    • 1
    • 2
  • H. Skov
    • 1
    • 2
  1. 1.Commission of the European CommunitiesJoint Research CentreIspraItaly
  2. 2.Ispra EstablishmentEnvironment InstituteIspraItaly

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