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Journal of Radioanalytical and Nuclear Chemistry
Authors: S. Hasilkar, N. Khedekar, Keshav Chander, A. Jadhav, and H. Jain

Abstract  

Studies have been carried out on the solubility of Pu(III) oxalate by precipitation of Pu(III) oxalate from varying concentrations of HNO3/HCl (0.5–2.0M) solutions and also by equilibrating freshly prepared Pu(III) oxalate with solutions containing varying concentrations of HNO3/HCl, oxalic acid and ascorbic acid. Pu(III) solutions in HNO3 and HCl media were prepared by reduction of Pu(IV) with ascorbic acid. 0.01–0.10M ascorbic acid concentration in the aqueous solution was maintained as holding reductant. The solubility of Pu(III) oxalate was found to be a minimum in 0.5M–1M HNO3/HCl solutions containing 0.05M ascorbic acid and 0.2M excess oxalic acid in the supernatant.

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Journal of Radioanalytical and Nuclear Chemistry
Authors: S. Hasilkar, N. Khedekar, Keshav Chander, A. Jadhav, and H. Jain
Restricted access