Hydrolysis constants and complexation of Th(IV) with carboxylates
Hydrolysis constants and complexation of Th(IV) with carboxylates
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Th(IV) 与羧酸盐的水解常数和络合
DOI：
10.1524/ract.2008.1523
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发表时间：
2008
影响因子：
1.8
通讯作者：
H. Moriyama
中科院分区：
文献类型：
--
作者：
T. Sasaki;Y. Takaoka;Taishi Kobayashi;T. Fujii;I. Takagi;H. Moriyama
摘要：采用溶剂萃取法测定了Th（IV）在nacl溶液中，在I=0.1和25℃条件下的水解常数。为了避免多核物质和胶体的形成，实验中使用了低于溶解度极限的微量钍。并与文献资料进行比较。考虑弱酸条件下竞争性水解反应的影响，测定了Th（IV）与一系列不同烷基链长的二羧酸的络合常数。
Abstract The hydrolysis constants of Th(IV) were determined using the solvent extraction method in a NaClO4 solution at I=0.1 and 25 °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.