Viscosity, Conductivity and Density of Fused Silver Chloride

The density, the electrolytic conductivity, and the viscosity of molten silver chloride doped with LiCl, KCl, CsCl, and BaCl2 have been measured in the concentration range 0 ^ xdopant — 0.1 and temperature range 740 K ^ Tm 900 K. The molar conductivity, A, decreases linearly with -̂ dopant•> the curve being independent of the charge of the added cation. Only in the case of LiCl is a very small increase of A observed. The viscosity of the melt remains virtually unchanged when doped with alkali halides. Addition of BaCl2 leads to a strong increase of the viscosity. The findings show that for these systems no correlation exists between the conductivity and the viscosity. It is further suggested that there is a strong influence of the long range Coulomb interaction on the viscosity of molten salts.