The simultaneous correlation of liquid-liquid(LL), liquid-solid(LS), and LLS equilibrium data for four water + organic solvent (alcohol or acetone) + inorganic salt (NaCl) ternary systems at 25 degrees C has been carried out. First, the NRTL equation was used to formulate the excess Gibbs energy (G(E)), assuming nondissociation of the dissolved salt in the liquid phase. Afterward, a modification of the NRTL equation taking into account the ionic behavior of the solid (electrolyte-NRTL) was introduced into the simultaneous correlation of the equilibrium regions for the same systems. The binary parameters and the comparison of the experimental and calculated equilibrium data obtained with both the molecular and electrolyte models are presented in this work. The stability analysis based on the Gibbs energy function of mixing, together with the common tangent criteria have been used to validate the parameters calculated.