Full Record Display for the EPA National Library Catalog

RECORD NUMBER: 6 OF 10

OLS Field Name OLS Field Data
Main Title Investigation of Hydroxyl Radical Reactions with o-Xylene and m-Xylene in a Continuous Stirred Tank Reactor (Journal Version).
Author Grey, M. W. ; Fox, D. L. ; Kamens, R. M. ; Stockburger, L. ;
CORP Author North Carolina Univ. at Chapel Hill. Dept. of Environmental Sciences and Engineering. ;Systems Applications, Inc., San Rafael, CA.;Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Sciences Research Lab.
Publisher c1987
Year Published 1987
Report Number EPA/600/J-87/444;
Stock Number PB89-110423
Additional Subjects Xylenes ; Air pollution ; Hydroxyl radicals ; Photochemical reactions ; Smog ; Aromatic monocyclic hydrocarbons ; Reaction kinetics ; Phenols ; Formaldehyde ; Nitro compounds ; Gases ; Ultraviolet radiation ; Nitrous acid ; Reprints ;
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB89-110423 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 03/14/1989
Collation 13p
Abstract The gas phase reactions of hydroxyl radicals with o-Xylene and m-Xylene were studied in a continuous stirred tank reactor. Gas and aerosol products accounted for 65 to 85 percent of the reacted carbon. Approximately 19 and 10 percent of the original o-Xylene and m-Xylene oxidation occurred through methyl hydrogen abstraction by OH, primarily leading to methylbenzyl nitrates and tolualdehydes. The remaining mass reacted through the OH addition pathway forming dimethylphenols, nitro-dimethylphenols, nitroxylenes and stable products resulting from further reaction of metastable 02-OH-adducts (including alpha-dicarbonyls, methyl-p-benzoquinones, CO and formaldehyde). For o-Xylene the ratio of reaction rate constants for formation of nitroxylenes versus dimethylphenols was estimated to be 59,000, while the same value for m-xylene was only about 10,000. The ratios of the dimethylphenol formation rates to the effective oxygen addition rates were found to be greater than or equal to 0.15 for o-Xylene and 0.27 for m-Xylene. These vary significantly from the approximations used in current photochemical kinetics models.
Supplementary Notes Pub. in Environmental Science and Technology, v21 n4 p339-348 Apr 87. Prepared in cooperation with Systems Applications, Inc., San Rafael, CA. Sponsored by Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Sciences Research Lab.
NTIS Title Notes Journal article.
Title Annotations Reprint: Investigation of Hydroxyl Radical Reactions with o-Xylene and m-Xylene in a Continuous Stirred Tank Reactor (Journal Version),
Category Codes 68A; 99E
NTIS Prices Not available NTIS
Primary Description 600/09
Document Type NT
Cataloging Source NTIS/MT
Control Number 836522774
Origin NTIS
Type CAT