Stability Constants of Nitrato Complexes of Trivalent Plutonium in Aqueous and Tributyl Phosphate Solutions

Journal of Nuclear Energy. Part B. Reactor Technology Pub Date : 1960-01-01 DOI:10.1016/S0368-3273(15)30030-4

V.B. Shevchenko, V.G. Timoshev, A.A. Volkova

引用次数: 1

Abstract

This paper deals with the extraction of nitrato complexes of trivalent plutonium from aqueous phases of various compositions. It is shown that Pu(III) is extracted by tributyl phosphate (TBP) from nitric acid solutions as Pu(NO₃)₃.TBP up to a nitrate ion concentration of 1·2 M. The distribution coefficient of Pu(III) is practically independent of the hydrogen ion concentration under the conditions studied. The stability constants of Pu(NO3)₃.3TBP, Pu(NO₃)₃, Pu(NO₃)₂⁺ and Pu(NO₃)₂⁺ have been determined as 0·75 ± 0·1, 14·4 ± 0·8 and 5·9 + 0·5, respectively.

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三价钚硝酸配合物在水溶液和磷酸三丁酯溶液中的稳定性常数

本文研究了从不同组成的水相中提取三价钚的硝酸配合物。结果表明，磷酸三丁酯(TBP)从硝酸溶液中以Pu(NO3)3的形式提取Pu(III)。在研究条件下，Pu(III)的分布系数几乎与氢离子浓度无关。测定了Pu(NO3)3.3TBP、Pu(NO3)3、Pu(NO3)2+和Pu(NO3)2+的稳定常数分别为0.75±0.1、14.4±0.8和5.9 + 0.5。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Nuclear Energy. Part B. Reactor Technology

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