Accession Number : AD0617580

Title :   RADIOLYSIS OF CYCLOHEXANE. V. PURIFIED LIQUID CYCLOHEXANE AND SOLUTIONS OF ADDITIVES,

Corporate Author : ALBERTA UNIV EDMONTON DEPT OF CHEMISTRY

Personal Author(s) : Ho,S. K. ; Freeman,G. R.

Report Date : 29 FEB 1964

Pagination or Media Count : 9

Abstract : The initial product yields (G values) in the gammaradiolysis of highly purified liquid cyclohexane have been found to be: hydrogen 5.6 = 0.1; cyclohexene 3.2 = 0.2; 1-hexene 0.40 = 0.05; n-hexane 0.08 = 0.02; methylcyclopentane 0.15 = 0.01; ethylcyclohexane approximately 0.04; dicyclohexyl 1.76 = 0.05; cyclohexylhexene 0.12 = 0.02; unidentified C(12) approximately 0.05. Cyclohexylcyclohexene was a secondary product. Both oxygen and p-benzoquinone reduced the major liquid product yields to the same limiting values: cyclohexene 1.5 = 0.1; 1-hexene 0.27 = 0.03; dicyclohexyl 0.29 = 0.03. From the reduction in the yields of these products, and on the assumption that free radicals were being scavenged by the additives, a lower limit of 1.1 = 0.3 was obtained for the ratio of the rate constants k(disproportionation)/ k(combination) for cyclohexyl radicals in liquid cyclohexane. (Author)

Descriptors :   (*CYCLOHEXANES, RADIATION CHEMISTRY), (*RADIATION CHEMISTRY, CYCLOHEXANES), GAMMA RAYS, CHEMICAL REACTIONS, HYDROGEN, CYCLOHEXANES, ALIPHATIC COMPOUNDS, HYDROCARBONS, FREE RADICALS, OXYGEN, QUINONES

Distribution Statement : APPROVED FOR PUBLIC RELEASE