トリチウムガスの紫外線効果酸化反応に対する四塩化炭素の促進効果

概要

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The effect of carbon tetrachloride on the UV-stimulated HT oxidation was examined. Mixture gases (H2, HT, O2 and CCl4) were irradiated by high pressure mercury lamp with varying the pressure of carbon tetrachloride. Total tritium concentration of HTO and TCl increased with increasing the pressure of carbon tetrachloride and increased acceleratedly with time when higher pressure of carbon tetrachloride was used. The enhancement effect was examined by measuring the acidity of the water in which HTO and HCl (TCl) were trapped and by considering additional elementary reactions by the addition of carbon tetrachloride. The acidity of the trapped water was proportional to the irradiation time. The quantity of TCl was calculated from that of HCl formed. Substraction of the TCl concentration from the total tritium concentration showed accelerated increase in HTO with time. The acceleration is not ascribed to the catalytic action of HCl (TCl) for the exchange reaction H2O and HT. Main paths for the formation of HTO are discussed.
富山大学の論文