The viscosity of concentrated electrolyte solutions. I. Concentration dependence at fixed temperature

The absolute rate theory of viscosity for simple fluids has been extended to account for the concentration dependence of the viscosity of concentrated single electrolyte solutions (1–10 m region). Graphical and computer techniques for obtaining the two parameters (volume and free energy of activation) which control the concentration dependence of the viscosity of single salt solutions at fixed temperatures are described. The additivity of these parameters for single ions are discussed with reference to the alkali and ammonium halides at 25 °C and the B coefficients of the Jones–Dole equation.