Radiolysis of Cyclohexane. III. Vapor Phase

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Abstract
The radiolysis of cyclohexane vapor by Po210 α particles was investigated. The Po210 source was calibrated by ferrous‐sulfate dosimetry, using G(Fe+++)=5.5. The product yields were studied as a function of dose. The initial yield for hydrogen was G(H2)i=8.0. The fraction volatile at −112°C, consisting of C2, C3, and C4 hydrocarbons, had an initial G value of 4.9±0.5. The poor agreement in material balance is tentatively ascribed to ion‐molecule reactions, since ions formed during radiolysis have a life‐time of the order of 10−3 sec. The value of the ratio G(cyclohexene)/(dicyclohexyl)=1.67 is similar to that found in liquid cyclohexane radiolysis. The G values for various types of cyclohexane fragmentation are also given.