Generalized Electrolyte-UNIQUAC-NRF model for calculation of solubility and vapor pressure of multicomponent electrolytes solutions

► The E-UNIQUAC-NRF model is extended for multicomponent electrolyte solutions. ► The generalized E-UNIQUAC-NRF model can predict solubility in the ternary system. ► The osmotic coefficient for binary and ternary electrolyte solutions are predicted. ► The vapor pressure for binary and ternary electrolyte solutions are predicted. ► The new model is useful when no experimental data for ternary systems are available.