Conductance‐Viscosity Studies on Some Moderately Concentrated Nonaqueous Electrolyte Solutions from −50° to 125°C: II . Solutions of ,, and in Propylene Carbonate

Abstract

Matching conductance, viscosity, and density data at 25° intervals between −50° and 125°C have been determined and analyzed for moderately concentrated solutions of three quaternary ammonium halides in propylene carbonate. Detailed results are presented for the fitting of experimental data as functions of molal concentration and temperature to appropriate equations by computer least squares procedures. Calculated results related to moles of solvent displaced per mole of solute and also apparent molal volumes indicate the lack of significant ion‐solvent interactions in the solutions of the quaternary ammonium salts in propylene carbonate. Additionally, conductance‐viscosity products and activation energies of viscous flow and conductance have been calculated and discussed. Throughout the broadly varying experimental conditions over the 175°C range, the conductances of the three salts have been found to be fairly closely proportional to the fluidity, or reciprocal of the viscosity, of the medium.