Solvent extraction of the hexaaquarhodium(III) ion from halogenated carboxylate solutions with trioctylphosphine oxide.
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概要
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The extraction equilibrium of the inert hexaaquarhodium(III) ion has been studied. Rhodium(III) was quantitatively and rapidly extracted from 0.10 mol dm<SUP>−3</SUP> trichloroacetate (TCA) or 0.010 mol dm<SUP>−3</SUP> pentadecafluorooctanoate solutions to heptane containing 0.10 mol dm<SUP>−3</SUP> trioctylphosphine oxide (TOPO) at pH 3–5. The extraction equilibria were achieved within 1 min at 298 K. From the equilibrium study in the TCA-TOPO system, the rhodium(III) species extracted into heptane was found to be Rh·3TCA·4TOPO, and the extraction constant was 10<SUP>12.29</SUP>. The rhodium(III) species in the organic phase was suggested to be the hexa-aquarhodium(III) complex associated with TCA and TOPO.
- 公益社団法人 日本化学会の論文
著者
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Imura Hisanori
Department Of Chemistry Faculty Of Science Ibaraki University
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Takahashi Hiromi
Department Of Biotechnology Tokyo University Of Agriculture And Technology
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Suzuki Nobuo
Department Of Applied Physics Faculty Of Engineering Tohoku University
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Imura Hisanori
Department of Chemistry, Faculty of Science, Tohoku University
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Takahashi Hiromi
Department of Chemistry, Faculty of Science, Tohoku University
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