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Russian Journal of General Chemistry

, Volume 89, Issue 8, pp 1653–1658 | Cite as

Formation of Mixed-Ligand Metal Salts in an Organic Phase During Cation-Exchange Extraction with Tetraphenylboronic Acid Salts

  • N. V. Gudkova
  • V. I. Kuzmin
  • D. V. KuzminEmail author
  • M. N. Leskiv
Article

Abstract

Significant extraction degree of calcium and yttrium chlorides with solutions of the corresponding tetraphenylborates in tributyl phosphate has been revealed, due to the formation of mixed complex compounds in the organic phase. It has been shown that lithium, calcium, and yttrium tetraphenylborates are significantly dissociated in the organic phase. The process has been studied by conductometry. Based on the obtained data, it has been suggested that the formation of mixed halide complexes is owing to the high energy of the solvated ion pairs [CaLn]2+(A)2 and [YLm]3+(A)3 in organic solutions, which is significantly decreased upon the exchange of large tetraphenylborate anions with small chloride anions, possibly with the formation of solvated ion pairs with a lower charge of the cationic part of the complex [CaLn−1Cl]+A or [YLm−2Cl2]+A

Keywords

extraction electrical conductivity mixed-ligand metal salts 

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References

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Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  • N. V. Gudkova
    • 1
  • V. I. Kuzmin
    • 1
  • D. V. Kuzmin
    • 1
    Email author
  • M. N. Leskiv
    • 1
  1. 1.Institute of Chemistry and Chemical Technology of the Siberian Branch of the Russian Academy of SciencesFederal Research Center “Komi Science Center of the Siberian Branch of the Russian Academy of Sciences,”KrasnoyarskRussia

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