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    • Ion-solvent interactions of some silver salts in N,N-dimethyl formamide-water mixtures at 30°C

      V V Giridhar C Kalidas

      Physical and Theoretical Volume 93 Issue 5 June 1984 pp 795-800

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      https://www.ias.ac.in/article/fulltext/jcsc/093/05/0795-0800

    • Keywords

       

      Selective solvation; water-dimethyl formamide mixtures; solubility; emf method; silver bromate; silver acetate; silver sulphate

    • Abstract

       

      The solvation behaviour of the salts, silver bromate, silver acetate and silver sulphate has been investigated in the binary mixtures of N,N-dimethyl formamide (dmf) and water. The Gibbs energies of transfer of these salts from water to water-dmf mixtures have been calculated from the solubilities of the salts in these mixtures. The transfer free energies of the salts were split into their ionic contributions by using the transfer-free energy of the silver ion in these mixtures obtained on the basis of negligible liquid junction potential (nLjp) method from independentemf measurements. The solvent transference number, Δ ofdmf, was determined byemf measurements using a suitable galvanic cell with transference. The results have been interpreted in terms of a heteroselective solvation of the salts with the silver ion selectively solvated bydmf and the anions by water.

    • Author Affiliations

       

      V V Giridhar1 C Kalidas1

      1. Department of Chemistry, Indian Institute of Technology, Madras - 600 036, India

    • Dates

       
      Published
      June 1984
      Manuscript received
      5 May 1983
      Manuscript revised
      9 November 1983

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