1988•Sov. Radiochem. (Engl. Transl.); (United States)Requires access
Influence of ammonium nitrate on kinetics and mechanism of thermal decomposition of ammonium polyuranates
A. I. Karelin, O. P. Lobas, А. Н. Жиганов, K.F. Vasil'ev, A.A. Zhiganova
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Abstract
The influence of ammonium nitrate on the mechanism and kinetics of dehydration and thermal decomposition of ammonium polyuranates was studied. An appreciable influence of the nitrate ion content in the samples of ammonium polyuranates on the development of thermal stability has been noted. The kinetic parameters of the thermal decomposition of ammonium polyuranates have been evaluated. A mechanism of the dehydration and thermal decomposition of ammonium polyuranates in the presence of ammonium nitrate has been proposed. It was shown that increase in the content of ammonium nitrate in the precipitate of ammonium polyuranates leads to a decrease in the specific surface of uranoso-uranic oxide.