Journal of Solution Chemistry

, Volume 22, Issue 6, pp 571–583 | Cite as

Conductimetric study of cesium chloride in isodielectric aqueous tetrahydrofuran, 1,2-dimethoxyethane and dioxane mixtures from 0 to 35°C

  • Eliane Rousset
  • Joseph Barthel
  • Jean-Claude Justice
Article

Abstract

CsCl in nearly isodielectric aqueous mixtures with tetrahydrofuran, 1,2-dimethoxyethane and dioxane has been studied at temperatures between 0° and 35°C. The conductance data are analyzed for the limiting conductance Λ0 and the association constant K A by means of the Justice-Ebeling conductance equation. By application of the Bjerrum equation an apparent distance of closest approach á is evaluated. This parameter is generally close to the crystallographic radius, 35Å. The deviations are attributed to solvation effects and are interpreted in terms of the Friedman-Rasaiah-Gurney cosphere overlap model. The variations of the effect with temperature permits an evaluation of enthalpy and entropy solvation parameters.

Key words

Conductance tetrahydrofuran dioxane dimethoxyethane aqueous solvent mixtures ion-pair association Gurney cosphere cesium chloride solvation 

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Copyright information

© Plenum Publishing Corporation 1993

Authors and Affiliations

  • Eliane Rousset
    • 1
  • Joseph Barthel
    • 2
  • Jean-Claude Justice
    • 3
  1. 1.Laboratoire de Chimie Macromoléculaire et PapetièreEFPG-INPGSaint Martin d'Hères CedexFrance
  2. 2.Institut für Physikalische und Theoretische ChemieUniversität RegensburgRegensburgGermany
  3. 3.Laboratoire d'ÉlectrochimeUniversité Pierre et Marie CurieParis Cedex 05France

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