ON THE DISSOCIATION MODEL FOR ELECTRICAL-CONDUCTIVITY IN MOLTEN-SALT MIXTURES

Theoretical premises of the dissociation model for electrical conducti vity in molten salt mixtures are presented. The basic idea of the mode l is the incomplete dissociation of the electrolyte components : as th e dissociation degrees of the constituents depend on mixture compositi on, the concentration of charge carriers changes and thus it influence s the evolution of conductivity isotherms as well. A versatile numeric al method together with its corresponding computing program are given, they providing an easier and more precise way to-the solutions of the discussed model. An analysis of validity of tire chosen procedure was made using our own data for electrical conductivities and molar volum es : a difference has been noticed between the behaviour of common ani on and common cation systems, respectively.