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Study of the SO 2 oxidation in solution and its role in atmospheric chemistry
Author(s) -
Junge Chr. E.,
Ryan T. G.
Publication year - 1958
Publication title -
quarterly journal of the royal meteorological society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.744
H-Index - 143
eISSN - 1477-870X
pISSN - 0035-9009
DOI - 10.1002/qj.49708435906
Subject(s) - atmosphere (unit) , catalysis , chemistry , atmospheric pressure , function (biology) , catalytic oxidation , partial pressure , inorganic chemistry , meteorology , physics , oxygen , organic chemistry , evolutionary biology , biology
Abstract The mechanism of SO 2 oxidation in diluted catalytic solutions was studied. It was found that the oxidation stops after a certain pH value is reached. In the same catalytic solutions, the maximum possible SO 4 − formation is a linear function of the SO 2 partial pressure in the air. This mechanism of SO 4 − formation can account for observed SO 4 − concentrations in rain, fog, and smog only if some neutralizing cations in the aerosols or traces of NH 3 in the air are present. It is shown that in the latter case the system SO 2 NH 3 ‐catalytic solution can explain the main features of SO 4 − formation in our atmosphere.