The radiolysis of molten${\rm LiNO}_{3}$ at 270°C by60 Co γ-rays was studied as a function of absorbed dose and dose rate. The decomposition followed the stoichiometry${\rm LiNO}_{3}\rightarrow {\rm LiNO}_{2}+{\textstyle\frac{1}{2}},{\rm O}_{2}$ with the initial 100-eV yield of nitrite ion,$G_{0}({\rm NO}{}_{2}{}^{-})=3.73\pm 0.05$. At large doses nitrate ion approached steady-state concentrations that were a function of dose rate. This effect, surprising at the low dose rates employed, is attributed to competitive chemical and radiation-enhanced back-reactions.

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