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Acceleration of Platinum(II) Extraction from Tetrachloroplatinate Solution with Acetylacetone by Pre-aquation and Heating

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Abstract

The effect of pre-aquation of PtCl42- by Hg(II) ion on the rate of extraction of Pt(II) with acetylacetone in dodecane, as the complex Pt(acac)2, was investigated at 25°C. Dependences of initial extraction rates on the concentrations of Hg(II) ion, hydrogen ion and acetylacetone suggested that acceleration of the extraction observed in the pre-aquated system is ascribable to the fast reaction between Pt(H2O)42+ and acetylacetone in aqueous phase. Heating of aqueous solution of PtCl42- and acetylacetone in Teflon bomb reactor was effective to accelerate the complex formation.

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Authors and Affiliations

  1. Department of Chemistry, Faculty of Education, Akita University, Akita, 010, Japan

    Hitoshi Watarai

  2. Department of Chemistry, Faculty of Science, Tohoku University, Sendai, 980, Japan

    Koichi Tamura & Nobuo Suzuki

Authors
  1. Hitoshi Watarai
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  2. Koichi Tamura
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  3. Nobuo Suzuki
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Additional information

The authors wish to thank Mr. Masanori Eguchi for carring out some of the preliminary experiments about the heating effect.

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Watarai, H., Tamura, K. & Suzuki, N. Acceleration of Platinum(II) Extraction from Tetrachloroplatinate Solution with Acetylacetone by Pre-aquation and Heating. ANAL. SCI. 3, 423–426 (1987). https://doi.org/10.2116/analsci.3.423

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  • DOI: https://doi.org/10.2116/analsci.3.423

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