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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 Environmenetal Sciences Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,
Year Published 1979
Report Number EPA-600/3-79-020; EPA-603864; PB294046
Stock Number PB-294 046
OCLC Number 49622542
Subjects Smog ; Atmosphere--Research
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
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EHAM  EPA-600/3-79-020 Region 1 Library/Boston,MA 05/25/2016
EJBD  EPA 600-3-79-020 c.1 Headquarters Library/Washington,DC 04/22/2014
EKBD  EPA-600/3-79-020 Research Triangle Park Library/RTP, NC 07/18/2003
ELBD ARCHIVE EPA 600-3-79-020 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ERAD  EPA 600/3-79-020 Region 9 Library/San Francisco,CA 10/22/2012
ESAD  EPA 600-3-79-020 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-294 046 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation viii, 70 pages : illustrations, charts ; 28 cm.
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.
"SRI International." "Project Officer: Marcia C. Dodge." "Atmospheric Chemistry and Physics Division Environmental Sciences Research Laboratory." Prepared for the United States Environmental Protection Agency by SRI International. "EPA-600/3-79-020"--Cover. "March 1979"--Cover. Final report ; Includes bibliographical references.