Influence of gamma-irradiation on kinetics of the heat release in the interaction of an aqueous solution of HNO3 with aliphatic hydrocarbons

The influence of the preliminary γ-irradiation and the γ-irradiation in the course of oxidation process on the kinetics of the heat release in n-decane-aqueous Hanna and solution of tributylphosphate in kerosene - aqueous Hanna systems was studied. The preliminary γ-irradiation of the system at 43 deg C increases the initial rate of the process (k1). The increase is proportional to the irradiation dose at the doses up to 150 k Gr, then it is retar ted, and the course of the process does not practically depend on the irradiation dose. The effect of γ-irradiation in the course of oxidation depends on the temperature of the system: at the temperature lower than 80 deg C, the γ-irradiation increases the rate of the heat release, and at higher temperatures, the γ-irradiation decreases the rate of the heat release. The observed effects were explained by the competition of N/A accumulation due to radiolysis of nitric acid and N/A addition to unsaturated hydrocarbons produced by the radiolysis of the organic phase