Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Production of Chlorine Atoms from the Reaction of OH with Chlorinated Hydrocarbons.
Author Kleindienst, T. E. ; Shepson, P. B. ; Nero, C. M. ; Bufalini, J. J. ;
CORP Author Northrop Services, Inc., Research Triangle Park, NC.;Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab.
Publisher c1989
Year Published 1989
Report Number EPA-68-02-4443; EPA/600/J-89/310;
Stock Number PB90-198615
Additional Subjects Chlorine ; Chlorohydrocarbons ; Chemical reactions ; Tables(Data) ; Yield ; Reprints ; Hydroxyl radicals
Library Call Number Additional Info Location Last
NTIS  PB90-198615 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 08/27/1990
Collation 24p
Measurements from previous studies have shown that when hydroxyl radicals react with various chlorinated hydrocarbons under atmospheric conditions, free chlorine atoms can be produced. The technique described in the study involves scavenging Cl atoms produced by the reaction (using ethylene or propylene as the scavenger) and then measuring the yield of the stable chlorinated product generated. Cl atom yields were determined for allyl chloride, vinyl chloride, vinylidene chloride, trichloroethylene, and benzyl chloride. The experiments were performed by irradiating mixtures of CH3ONO/NO/chlorinated hydrocarbon/alkene in air in 150-L Teflon chambers. The yields for the reaction of Cl atoms with the alkenes generating the stable products were determined in separate experiments. Yields for the formation of Cl atoms upon reaction with hydroxyl radicals are as follows (with 1 sigma deviation): allyl chloride: 0.37 + or - 0.10, vinyl chloride: 0.04 + or - 0.01, vinylidene chloride: 0.23 + or - 0.09, trichloroethylene: 0.63 + or - 0.34, and benzyl chloride: 0.08 + 0.03. (Copyright (c) 1989 John Wiley & Sons, Inc.)