Record Display for the EPA National Library Catalog

RECORD NUMBER: 560 OF 1030

OLS Field Name OLS Field Data
Main Title Reactions of oxy radicals in the atmosphere /
Author Hendry, D. G. ; Kenely, R. A. ; Davenport, J. E. ; Lan, B. Y.
Other Authors
Author Title of a Work
Hendry, D. G.
Dodge, Marcia C.
CORP Author SRI International, Menlo Park, CA.;Environmental Sciences Research Lab., Research Triangle Park, NC. Atmospheric Chemistry and Physics Div.
Publisher United States Environmental Protection Agency, Office of Research and Development, Environmenetal Sciences Research Laboratory,
Year Published 1979
Report Number EPA/600/3-79/020; EPA-603864
Stock Number PB-294 046
OCLC Number 53943953
Additional Subjects Air pollution ; Peroxy organic compounds ; Free radicals ; Reaction kinetics ; Nitrogen oxide(NO) ; Nitrogen dioxide ; Toluene ; Chemical reactions ; Atmospheric composition ; Atmospheric chemistry ; Chemical reaction mechanisms ; Peroxyacetyl nitrate ; Hydroxyl radicals ; Chemical reaction mechanisms ; Benzene/dimethyl ; Benzene/trimethyl
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB-294 046 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 01/01/1988
Collation 1 volume (various pagings) ; 28 cm.
Abstract
Results are presented of a research program concerned with the study of selected reactions of importance in atmospheric chemistry. The decomposition of peroxyacetyl nitrate (PAN) was studied over the temperature range 25-39C. The rate constant was determined to be log k = 16.29 - 26,910/4.576 T. The reactions of acetylperoxy radicals with NO and NO2 were investigated. The ratio of the rate constants for these reactions was determined to be k(NO)/k(NO)2 = 3.0 + or - 0.7. The products of the reaction of OH with various aromatic compounds were also determined. The investigation showed that the reaction of OH with simple aromatic hydrocarbons proceeds by two major pathways, abstraction of a hydrogen atom in the benzylic position or addition of OH to the aromatic ring. Ratios of the rate of abstraction versus addition were determined for toluene, 1,4-dimethylbenzene and 1,3,5-trimethylbenzene. Results of a study to elucidate the products and mechanism of the reaction of OH with benzaldehyde are also presented. Research showed that this reaction proceeds exclusively by abstraction of the aldehydic hydrogen.
Notes
Project Officer: Marcia C. Dodge. Prepared for the United States Environmental Protection Agency by SRI International. "March 1979." Final report ; Includes bibliographical references. "EPA-600/3-79-020." Microfiche.