Abstract

In 1984 a model for additive binary molten salt mixtures had been proposed that allowed for a qualitative understanding of the occurence of the Chemla effect (equal internal mobilities at a certain mixing ratio of the salts). In that model the presence of three ions (1,2 and 3) and two neutral molecules (4 and 5) consisting of two ions is assumed, and the ratios K\ = x* / x\x^ and A'2 = X5 / X2X3 of their mole fractions are assumed to be independent of the mixing ratio of the salts. In the present paper, that model is compared with recent experimental results on the system (Li, Cs)Cl obtained in Japan. The comparison shows that the model is too simple for a quantitative description of systems showing the Chemla effect. Rather a dependence of A'I and h'2 on the mixing ratio of the salts must be assumed.