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  • Chem Sci Trans., 2014, 3(1),  pp 87-92  

    DOI:10.7598/cst2014.622

    Research Article

    Study of the Influence of Alkyl Chain Cation - Solvent Interactions on the Slope of ΦV vs. √C Curves in 1,5-Pentane Diol - DMF Solvent Mixtures by Apparent Molar Volume Measurements

  • R. N. PATHAK, INDU SAXENA, ARCHNA, RAHUL KUMAR and NARENDRA SINGH
  • Department of Chemistry, Lucknow University, Lucknow -226007, India
  • Abstract

    The concept of Frank’s hypothesis (that is the effect of large tetra alkyl ammonium ions on the solvent structure, especially water, in the ion-ion and ion-solvent interactions) was found to be not applicable when water was replaced by one of the organic solvents e.g. Dimethyl formamide (DMF), in the solvent mixture, that is, if the study involves ion-ion and ion- solvent interactions in 1,5-pentane diol-DMF solvent mixture containing large cations of tetraalkyl ammonium iodides. The densities of binary solvent mixtures and salt solutions have been measured at 298.15 K by magnetic float densitometer. The apparent molar volumes at infinite dilution, ΦV0 determined by ΦV –values in the solvent mixtures, have been utilized to estimate the partial molar volumes of transfer, ΔΦV0(tr), for various tetraalkyl ammonium iodide salts from DMF to 1,5-Pentane diol.

    Keywords

    Ion - solvent Interactions, 1, 5-Pentane diol- DMF mixtures

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