Other
Scientific paper
Oct 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980georl...7..797i&link_type=abstract
Geophysical Research Letters, vol. 7, Oct. 1980, p. 797-800. U.S. Environmental Protection Agency
Other
Atmospheric Chemistry, Carbon Disulfide, Carbonyl Compounds, Hydroxyl Radicals, Reaction Kinetics, Troposphere, Photolysis, Reaction Products, Sulfides
Scientific paper
The reaction rate of OH with CS2 to form OCS is examined by measuring the formation of O(C-14)S from mixtures of H2O2 with (C-14)S2 in a photolytic system. The upper limit for the formation of OCS based on the oxidation of CO to CO2 corresponds to a rate constant, where k1 is less than 0.3 x 10 to the -14th cu cm/ molecule-sec. Other chemical reactions in the system are found to form both (C-14)O and (C-14)O2, indicating the existence of a combination of reactions so that all the O(C-14)S observed is not necessarily formed from the reaction of OH with CS2. The experimental reaction rate is significantly slower than those reported by Kurylo (1978) and by Cox and Sheppard (1980), showing that neither is an important atmospheric sink for CS2 nor an important source for atmospheric OCS. It is also suggested that the reaction of OH with OCS is probably not an important atmospheric sink for OCS nor an important source of SO2.
Iyer Ravi S.
Rowland Sherwood F.
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