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The use of high-voltage electrodialysis in the analysis of platinum metals

  • Inorganic and Analytical Chemistry
  • Published:
Bulletin of the Academy of Sciences of the USSR, Division of chemical science Aims and scope

Conclusions

  1. 1.

    The theoretical possibility of using the method of electrodialysis in the analysis of platinum metals was demonstrated.

  2. 2.

    Conditions were found permitting sufficiently complete separation of complex chlorides of platinum, iridium, palladium, and rhodium from simple chlorides of copper, nickel, and iron.

  3. 3.

    The difference in the behavior of weakly acidic solutions of the complex chlorides of platinum, iridium, palladium, and rhodium during electrodialysis, explained by the greater tendency of palladium and rhodium for hydrolysis, was used as the basis for a separation of palladium and rhodium from platinium and iridium.

  4. 4.

    Satisfactory results were obtained in a separation of platinum and iridium from palladium. Conditions for a quantitative separation of these metals from rhodium have not yet been found as a result of the variety of aquated forms of the chlorides of rhodium and partial reduction of rhodium (III) to the metal on the electrode.

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Authors and Affiliations

  1. N. S. Kurnakov Institute of General and Inorganic Chemistry, Academy of Sciences of the USSR, USSR

    N. A. Ezerskaya & T. P. Solovykh

Authors
  1. N. A. Ezerskaya
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  2. T. P. Solovykh
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 5, pp. 993–999, May, 1969.

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Ezerskaya, N.A., Solovykh, T.P. The use of high-voltage electrodialysis in the analysis of platinum metals. Russ Chem Bull 18, 907–911 (1969). https://doi.org/10.1007/BF00922839

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  • DOI: https://doi.org/10.1007/BF00922839

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