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THE PRINCIPLE OF SELECTIVE URANYL NITRATE EXTRACTION BY TRI-N- BUTYLPHOSPHATE
S. Mints, S. Libus
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Abstract
The high selectivity of uranyl nitrate extraction by trin-butyl phosphate is ascribed to the uranyl ions strong ability for coordinating nitrate ions through its two oxygen atoms and also to strong uranyl ion complexing by tri- nbutyl phosphate, the value of which is 6 in butyl alcohol medium. The corresponding constant for nickel nitrate is 0.8. (R.V.J.)