Extension of a New Equation of State to the Liquid Mixtures

A new equation of state recently reported for pure liquids has been extended to predict the volumetric and thermodynamic properties of 10 binary mixtures and 1 ternary liquid mixture at different temperatures, pressures, and compositions. A wide comparison with literature experimental data shows the ability of this equation of state to reproduce and predict different volumetric and thermodynamic properties of liquid mixtures. For the binary and ternary mixtures, the composition dependences of the parameters of the equation of state are assumed as quadratic functions of mole fraction. Using these mixing rules, the agreement between the calculated and experimental densities is better than 0.8% for binary mixtures and 3.1% for ternary mixtures.