APPLICATION OF IDEAL ASSOCIATED SOLUTION MODEL TO LIQUID-METAL SYSTEMS WITH POSITIVE AND SIGN-VARIABLE DEVIATIONS FROM RAOULTS LAW

The ideal associated solution (IAS) model was used to describe the con centration dependence of thermodynamic functions of a number of liquid metal systems with positive and sign-variable deviations from Raoult' s law. For systems with positive deviations, only the formation of ass ociates of like species was taken into account, while for those with s ign-variable deviations, associates of both like and unlike species we re considered. The most probable set of associates was chosen based on an analysis of standard deviations and the uniformity of distribution of the divergence over the entire concentration range, and also with due regard for the actual possibility for an associate to be formed in the solution.