Record Display for the EPA National Library Catalog


Main Title Kinetics of the Reaction of OH Radicals with a Series of Branched Alkanes at 297 + or - 2 K.
Author Atkinson, R. ; Carter, W. P. L. ; Aschmann, S. M. ; Winer, A. M. ; Pitts, J. N. ;
CORP Author California Univ., Riverside. Statewide Air Pollution Research Center.;Environmental Sciences Research Lab., Research Triangle Park, NC.
Year Published 1984
Report Number EPA/600/J-84/330;
Stock Number PB86-100336
Additional Subjects Alkanes ; Reaction kinetics ; Air pollution ; Reprints ; Hydroxyl radicals ; Atmospheric chemistry ; Butane/dimethyl ; Pentane/dimethyl ; Cyclohexane/methyl
Library Call Number Additional Info Location Last
NTIS  PB86-100336 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 15p
Relative rate constants for the reaction of OH radicals with a series of branched alkanes have been determined at 297 + or - 2 K, using methyl nitrite photolysis in air as a source of OH radicals. Rate constants for 2,2-dimethylbutane, 2,4-dimethylpentane and methylcyclohexane have been determined for the first time, while those for the other branched alkanes are in generally good agreement with the literature data. Primary, secondary, and tertiary group rate constants at room temperature have been derived from these and previous data for alkanes and unstrained cycloalkanes, with the secondary and tertiary group rate constants depending in a systematic manner of the identify of the neighboring groups. The use of these group rate constants, together with a previous determination of the effect of ring strain energy on the OH radical rate constants for a series of cycloalkanes, allows the a-priori estimation of OH radical rate constants for alkanes and cycloalkanes at room temperature.