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- Title
Solubility of tributyl phosphate and its degradation products in concentrated uranyl nitrate solutions and of uranyl nitrate in tributyl phosphate at elevated temperatures.
- Authors
Usachev, V. N.; Markov, G. S.
- Abstract
Solubility of UO2(NO3)2, TBP, and its degradation products in the organic and aqueous phases of the system TPB-H2O-HNO3-UO2(NO3)2 at 25-128°C over the uranyl nitrate concentration range 200-1200 g 1-1 is studied. The solubility of TBP and its degradation products in uranyl nitrate hexahydrate melt decreases in the order H2MBP>HDBP>TBP>H3PO4. At the boiling point of the melt, their solubility ranges from 100 to 0.5 g l-1. The solubility of uranyl nitrate in the TBP phase under the same conditions is caused by formation of complexes with a composition close to that of the monosolvate UO2(NO3)2· TBP.
- Subjects
TRIBUTYL phosphate; PHOSPHATES; SOLUBILITY; NITRATES; TEMPERATURE
- Publication
Radiochemistry, 2004, Vol 46, Issue 5, p471
- ISSN
1066-3622
- Publication type
Article
- DOI
10.1007/s11137-005-0012-y