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4価金属水酸化物の溶解度に及ぼす有機物の影響

Influence of organic acids on solubility of tetravalent metal hydroxide

小林 大志*; 佐々木 隆之*; 北村 暁  

Kobayashi, Taishi*; Sasaki, Takayuki*; Kitamura, Akira

廃棄体由来の有機物であるイソサッカリン酸と類似した化学構造を有するグルコン酸共存下でのジルコニウム溶解度を測定した。溶存ジルコニウム濃度の水素イオン濃度およびグルコン酸濃度に対する依存性からジルコニウム溶解度に及ぼすグルコン酸の影響について熱力学データに基づく解釈を試みた。

Solubility of zirconium was measured under gluconate conditions. Gluconate is known as an analogous materials to isosaccharinate which is an organic substance degraded from cellulose. An attempt was applied to obtain an equilibrium constant for zirconium-gloconate systems using the zirconium solubility values as a function of hydrogen and gluconate concentrations.

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