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Kinetics of the reaction of hydroxyl radicals with nitric acidAn extensive study was made of the reaction of hydroxyl radicals with nitric acid in a laser photolysis-resonance fluorescence system. A 266 nm laser was used to photolyze HNO3 in the temperature range 225-415 K at pressures of 20-300 torr. A temperature dependence was detected below room temperature, with a leveling off at 298 K and a wide spread in the rate constants. A pressure dependence was observed over the entire range and was more pronounced at lower temperatures. The results are noted to be in agreement with those of previous investigations. However, the wide range of rate constants are suggested to be a problem for stratospheric HO(x) modeling for anthropogenic effects. No explanation could be given of the varying results obtained by other investigators regarding the kinetics of the reactions.
Document ID
19830036012
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Margitan, J. J.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Watson, R. T.
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena CA, United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1982
Publication Information
Publication: Journal of Physical Chemistry
Volume: 86
Issue: 19, 1
Subject Category
Inorganic And Physical Chemistry
Accession Number
83A17230
Funding Number(s)
CONTRACT_GRANT: NAS7-100
Distribution Limits
Public
Copyright
Other

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