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Determination of the excess thermodynamic functions of components of binary salt melts in infinitely diluted solution on the basis of the ideal associated solution model

G. Kaptay and E. Berecz

Department of Physical Chemistry, Institute of Chemistry, University of Miskolc, H-3515 Miskolc-Egyetemváros


Abstract: The authors pointed out that beside the heteronuclear associates, type AIBJ, the homonuclear associates, types Ai and Bj, are also necessary for the adequate thermodynamic description of the molten salt systems. With any number of associates, types Ai, Bj, and AIBJ, being considered, the explicit formulas for calculation of the partial molar excess thermodynamic functions extrapolated to the infinitely diluted solution for components A and B were obtained in the system A-B.The trial calculations have proved that it is necessary to consider the homonuclear associates, types Ai and Bj, not only from the theoretical point of view, but also that of the practice even if the stability of the heteronuclear associates, type AIBJ, is much greater (with more orders of magnitude) than that of the homonuclear ones. The possible methods of determination of the model parameters have been also discussed.

Full paper in Portable Document Format: 452a145.pdf


Chemical Papers 45 (2) 145–158 (1991)

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