State of Uranophosphates M-II(PUO6)(2)center dot nH(2)O (M-II = Mn2+, Co2+, Ni2+, Cu2+, Zn2+, Cd2+, Pb2+) in Aqueous Solutions

被引：4
|
作者：
Nipruk, O. V. [1 ]
Chernorukov, N. G. [1 ]
Godovanova, N. S. [1 ]
Arova, M. I. [1 ]
机构：
[1] Lobachevsky Nizhni Novgorod State Univ, Pr Gagarina 23, Nizhnii Novgorod 603950, Russia
来源：
RADIOCHEMISTRY | 2012年 / 54卷 / 06期
关键词：
uranophosphates; solubility; speciation diagrams; acid-base transformations;
D O I：
10.1134/S1066362212060033
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The stability of uranophosphates M-II(PUO6)(2)center dot nH(2)O (M-II = Mn, Co, Ni, Cu, Zn, Cd, Pb) in water and aqueous HClO4 and NaOH solutions was studied. The acid-base limits of the existence of these compounds were determined, the products of their conversion into phases of other compositions and structures were identified and studied, and the solubility of M-II(PUO6)(2)center dot nH(2)O was determined. From the data obtained, the solubility products and Gibbs functions of formation of uranophosphates and the solubility curves were calculated, and the speciation diagrams of U(VI), P(V), and M(II) in solutions and equilibrium solid phases were plotted.
引用
收藏
页码：528 / 536
页数：9
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