Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

ABSTRACT

The solubilties of potassium chloride and potassium sulfate in aqueous glycerol solutions have been measured at temperatures ranging from (289 to 349) K using a dynamic method. The solute-free mass fractions of glycerol range from 0.0000 to 0.8001. The solubilities of KCl and K2SO4 in aqueous glycerol solutions increased with temperature and decreased with addition of glycerol. The experimental data were correlated with the electrolyte nonrandom two liquid (E-NRTL) model. The binary interaction parameters in the E-NRTL model were obtained simultaneously using the solubility data of the ternary systems. The calculated solid liquid equilibrium (SLE) temperatures with the E-NRTL model were in good agreement with the experimental results. The root-mean-square deviations of solubility temperature varied from (0.36 to 1.05) K.