Solubility and Solubility-Limiting Solid Phase in M(IV)-OH-Dicarboxylate Ternary Aqueous System
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概要
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The solubilities of thorium and zirconium in the presence of several dicarboxylic acids were investigated as functions of the hydrogen ion concentration (pHc). In the presence of succinic, glutaric, and adipic acids, few Th colloidal species larger than 2 nm were observed, and the apparent solubility appeared to be controlled by thorium-dicarboxylate solid phases. The Th solubility in the presence of fumaric (trans-butenedioic) acid was similar to that in the presence of succinic (butanedioic) acid, whereas no solid phase was observed under pHc 4 in the presence of maleic (cis-butenedioic) acid. In the presence of succinic and glutaric acids, the contributions of Zr colloidal species to the apparent solubility were observed, possibly due to the stronger hydrolysis reaction than that of Th. The solubility product values of Th and Zr dicarboxylates were determined from the analysis of the solubility data.
- 2011-07-01
著者
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MORIYAMA Hirotake
Research Reactor Institute, Kyoto University
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TAKAGI Ikuji
Department of Nuclear Engineering, Kyoto University
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Takagi Ikuji
Dep. Of Nuclear Engineering Kyoto Univ.
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Takagi I
Kyoto Univ. Kyoto
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Takagi Ikuji
Department Of Nuclear Engineering Kyoto University
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MORIYAMA Hirotake
Department of Nuclear Engineering, Kyoto University
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Moriyama Hirotake
Dep. Of Nuclear Engineering Kyoto Univ.
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Moriyama Hirotake
Research Reactor Institute Kyoto University
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KOBAYASHI Taishi
Department of Nuclear Engineering, Kyoto University
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Kawasaki Toru
Department Of Nuclear Engineering Kyoto University
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KOBAYASHI Taishi
Research Reactor Institute, Kyoto University
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Sasaki Takayuki
Department Of Nuclear Engineering Kyoto University
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Sasaki Takayuki
Department Of Biology Faculty Of Science Niigata University
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