Abstract
The effect of nitrous oxide concentration over a very wide range, and at low dose, on the radiolysis of the system water + 10% ethanol has been investigated. At very high concentrations G(N2) = 4.0 compared to approximately 2.7 between 10−4 and 10−2M nitrous oxide. The results are discussed in terms of a nonhomogeneous kinetics model for the scavenging of solvated electrons, with G (total ionization) = 4.0. The free ion yield is G(esolv−)fi = 2.7. These values apply to both the present system and to pure water. The wide variation in previously reported values of G(eaq−) is understandable in terms of the present model. The previously published model for charge scavenging in liquids [J. Chem. Phys. 46, 2822 (1967) ] has been moderately successful in describing charge scavenging in the γ radiolysis of hydrocarbons, alcohols, and water. This emphasizes the earlier suggestion that the behavior of extra electrons in nonpolar and polar liquids differs in degree but not in kind.
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