Hydrolysis constants and complexation of Th(IV) with carboxylates

被引：18

作者：

Sasaki, T. ^{[1
]}

Takaoka, Y. ^{[1
]}

Kobayashi, T. ^{[1
]}

Fujii, T. ^{[2
]}

Takagi, I. ^{[1
]}

Moriyama, H. ^{[1
]}

机构：

[1] Kyoto Univ, Dept Nucl Engn, Sakyo Ku, Kyoto 6068501, Japan

[2] Kyoto Univ, Inst Res Reactor, Osaka 5900494, Japan

来源：

RADIOCHIMICA ACTA | 2008年 / 96卷 / 12期

关键词：

Thorium; Hydrolysis constant; Formation constant; Organic acid; Solvent extraction;

D O I：

10.1524/ract.2008.1523

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The hydrolysis constants of Th(IV) were determined using the solvent extraction method in a NaClO(4) Solution at I = 0.1 and 25 degrees C. A trace amount of thorium below the solubility limit was used in order to avoid the formation of polynuclear species and colloids in the experiment. The values were compared with the literature data. Considering the effect of competitive hydrolysis reactions under weak acid conditions, the complexation constants of Th(IV) with a series of dicarboxylic acids containing different alkyl chain lengths were determined.

引用

页码：799 / 803

页数：5

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