A method for the prediction of the temperature dependence of ternary interaction parameters

The method presented in this work is based on the use of the predictive capacity of thermodynamic models. To illustrate the applicability of the method, the model of Jacob and Alcock (3) was used to predict the temperature dependence of Gibbs free energy interaction parameters in liquid Pb-O-X systems. The prediction was found to be very accurate, especially when the enthalpy interaction parameters of the reference and of the predicted systems were of the same magnitude (Fig. 1). Although in the present illustrative case the solvent was the same (liquid Pb) for both the reference and the predicted systems, the method will nevertheless allow the two solvents to be different. Also, when applying the method to other systems, different thermodynamic models can be used.