Kinetics and product studies of the BrO + ClO reaction - Implications for Antarctic chemistry

Details Kinetics and product studies of the BrO + ClO reaction - Implications for Antarctic chemistry Kinetics and product studies of the BrO + ClO reaction - Implications for Antarctic chemistry

Aug 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988georl..15..887s&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 15, Aug. 1988, p. 887-890.

Physics

22

Atmospheric Chemistry, Bromine Compounds, Chlorine Oxides, Photolysis, Reaction Kinetics, Diurnal Variations, Mass Spectroscopy, Stratosphere, Ultraviolet Spectroscopy

Scientific paper

Discharge flow-mass spectrometry and flash photolysis-UV spectrometry were used to investigate the reaction of ClO with BrO over the temperature range of 220-400 K and the pressure range of 1-760 Torr. Rate constants were determined for: (1) Br + ClOO, (2) Br + OClO, and (3) BrCl + O2. It is found that the rate constants for the overall reaction and each reaction branch are inversely dependent on temperature and independent of pressure. For temperatures found in the Antarctic stratosphere, the rate coefficients for the channels yielding ClOO and OClO are a factor of 2-3 larger than previously estimated.

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