Stability constants of uranium(IV)-α-isosaccharinic acid and gluconic acid complexes

被引：42
|
作者：
Warwick, P [1 ]
Evans, N
Hall, T
Vines, S
机构：
[1] Loughborough Univ Technol, Dept Chem, Ctr Environm Studies, Loughborough LE11 3TU, Leics, England
[2] UK Nirex, Didcot OX11 0RH, Oxon, England
来源：
RADIOCHIMICA ACTA | 2004年 / 92卷 / 12期
关键词：
complexation; uranium; isosaccharinic acid; reducing conditions; solubility product; gluconic acid;
D O I：
10.1524/ract.92.12.897.55106
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Conditional and pH independent stability constants have been determined for U(IV) alpha-isosaccharinic acid (ISA) and gluconic acid (G1) complexes, under anaerobic and carbonate-free conditions, from pH 3 to 14. The constants are needed for nuclear waste repository performance assessment purposes. The constants were obtained by developing an approach based on the solubility product of amorphous UO(2)(.)2H(2)O. The derived pH independent log values for U(OH)(4)ISA and U(OH)(4)Gl were 49 +/- 2 and 50 +/- 1 respectively.
引用
收藏
页码：897 / 902
页数：6
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