ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Thermodynamic modeling of simple and complex melts

M. Gaune-Escard

SETT, UA 1168, Universitě de Provence, Centre de St Jerome, Av. Escadrille Normandie Niemen, F-13397 Marseille Cédex 13

Abstract: Thermodynamic modeling of melts is of great importance in many industrial applications involving these high-temperature liquids. Very often, melts are multicomponent systems and experimentation becomes more expensive and time-consuming with each component beyond binary mixtures. It is therefore crucial to use or to develop suitable models for such mixtures; of course, for the sake of selfconsistency, the suitability should be relative first to the binary systems limiting the multicomponent melt.Several models are reviewed for those most simple melts only involving either simple ionic species or nonionized components. They are relative to binary mixtures and to additive and reciprocal molten salt mixtures, including either ions of the same valency or ions of different valency.Complex melts are generally obtained from the mixing of an ionic salt with a nonionized component; they are characterized by the formation of associates contributing to the excess thermodynamic quantities. An ideal associated model is reported for mixtures involving two complex species.

Full paper in Portable Document Format: 452a159.pdf

Chemical Papers 45 (2) 159–175 (1991)