Accession Number:

AD0676422

Title:

ABSOLUTE RATE CONSTANTS FOR HYDROCARBON AUTOXIDATION. VII. REACTIVITIES OF PEROXY RADICALS TOWARD HYDROCARBONS AND HYDROPEROXIDES,

Descriptive Note:

Corporate Author:

NATIONAL RESEARCH COUNCIL OF CANADA OTTAWA (ONTARIO) DIV OF APPLIED CHEMISTRY

Report Date:

1967-10-10

Pagination or Media Count:

18.0

Abstract:

The four propagation and three termination rate constants for the co-oxidation of cumene and Tetralin were determined at 30C and 56C. The secondary tetralylperoxy radical is about four times as reactive in hydrogen atom abstraction as the tertiary cumylperoxy radical. The rate constant for termination by reaction of a tetralylperoxy and a cumylperoxy radical has about one quarter of the value for termination by two tetralylperoxy radicals. Rate constants for the transfer of hydroperoxidic hydrogen to peroxy radicals were measured. This reaction exhibits an exceptionally large deuterium isotope effect. A possible explanation for the high value is suggested. The absolute rate constants at 30C. for hydrogen atom abstraction from toluene, ethylbenzene, cumene, and Tetralin by cumylperoxy, tetralylperoxy, and 9,10-dihydroanthracyl-9-peroxy radicals were measured. Author

Subject Categories:

  • Organic Chemistry
  • Physical Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE