COPRECIPITATION OF Pu(IV) WITH LANTHANUM OXALATE (in Russian)
Plutonium coprecipitation with lanthanum oxalate forms anomalous mixed crystals with a lower miscibility boundary at micro component concentrations from 10/sup -6/ to 10/sup -9/ M. The distribution of Pu(IV) between the lanthanium oxalate and the solution follows the Khlopin or logarithmic law, depending on the conditions of coprecipitation. A strong plutonium enrichment of lanthanum oxalate crystals was observed in nitric acid solutions (1.5 and 0.5 M) with oxalic acid or ammonium oxalate not exceeding 0.1 M. An increased oxalate ion concentration reduces the crystallization factor by forming complex Pu(IV) ions with oxalate. Thus, coprecipitation of Pu(IV with trivalent carrier behaves like the trivalent element and differs only by a diminished crystallization factor. (R.V.J.)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-14-021468
- OSTI ID:
- 4172931
- Journal Information:
- Radiokhimiya (U.S.S.R.) For English translation see Sov. Radiochem. (Engl. Transl.), Journal Name: Radiokhimiya (U.S.S.R.) For English translation see Sov. Radiochem. (Engl. Transl.) Vol. Vol: 2; ISSN RADKA
- Country of Publication:
- Country unknown/Code not available
- Language:
- Russian
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