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Science 19 January 1973:
Vol. 179. no. 4070, pp. 280 - 282
DOI: 10.1126/science.179.4070.280
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Articles

The Hydroperoxyl Radical in Atmospheric Chemical Dynamics: Reaction with Carbon Monoxide

D. D. Davis 1, W. A. Payne 2, and L. J. Stief 3

1 Chemistry Department, University of Maryland, College Park 20742
2 Chemistry Department, University of Maryland, and Astrochemistry Branch, Laboratory for Extraterrestrial Physics, NASA/Goddard Space Flight Center, Greenbelt, Maryland 20770
3 Astrochemistry Branch, Laboratory for Extraterrestrial Physics, NASA/Goddard Space Flight Center

From measurements of the photochemical rate of production of CO216,18 and CO216,16, produced from the low intensity photolysis of mixtures of CO, H2O, Ar, and O218,18, the rate constant for the reaction HO2 + CO rarr CO2 + OH has been determined at 300°K to be less than or equal to 10-20 cubic centimeter per molecule per second. These measurements indicate that the reaction of thermalized HO2 is of negligible importance as a sink mechanism for converting CO to CO2 in either the troposphere or the stratosphere.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Venus: Composition and Structure of the Visible Clouds.
R. G. Prinn (1973)
Science 182, 1132-1135
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