A model for Estimation of the ionic activity coefficient for ternary solution system was developed from the basis of binary solution system model analytically. In consideration of ionic effect abd nonionic effect in the electrolyte solution, the activ...
A model for Estimation of the ionic activity coefficient for ternary solution system was developed from the basis of binary solution system model analytically. In consideration of ionic effect abd nonionic effect in the electrolyte solution, the activity coefficients of mixed solvent were calculated by the presumed parameters. Therefore, mean molal ionic activity coefficient in the ethanol-water saturated solution wuth sodium chhloride was estimated with this ternary solution system model corrected by these presumed parameters, G_(±t) and Z_(±t). The measuring experiment of solubility was carried out by measuring of electromotive force of the ternary solution in the whole range of the ratio for ethanol to water.