Transition Metal Chemistry

, Volume 14, Issue 5, pp 387–389 | Cite as

Ion pair equilibria in solution: Conductances of aqueous methanolic solutions of silver benzoate at 35° C

  • Vadloori Manaiah
  • Bangalore Sethuram
  • Tangeda Navaneeth Rao
Full Papers


Conductances of PhCO2Ag in 0, 10, 20, 40 and 60% (w/w) MeOH−H2O mixtures were measured at 35° C and analysed using the Fuoss-Hsia equation for thermodynamic association constants (KA) and molar conductances at infinite dilution (Λ0). The modified Denison-Ramsey (MDR) equation KA=3.025 exp (155.96/D) described best the log KA: 1/D data for the ion pair equilibria. In view of the observed association constants and the value of the parameter ‘a’ (3.48 Å), a dynamic equilibrium between solvent separated and contact ionpairs was proposed and equilibrium constants for the interconversions of those forms were calculated.


Physical Chemistry Inorganic Chemistry Catalysis MeOH Equilibrium Constant 
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Copyright information

© Chapman and Hall Ltd 1989

Authors and Affiliations

  • Vadloori Manaiah
    • 1
  • Bangalore Sethuram
    • 1
  • Tangeda Navaneeth Rao
    • 1
  1. 1.Department of ChemistryOsmania UniversityHyderabadIndia

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