Solubility of silver chloride and silver bromide and their complexes in anhydrous calcium nitrate–potassium nitrate (1/1·9) melt

Abstract

The solubility of silver chloride and bromide as a function of the corresponding halide concentration has been measured in molten Ca(NO₃)₂,1·925KNO₃, in the temperature range 160–200 °C. by use of ¹¹⁰Ag as radioactive tracer. The solubility products and the consecutive stability constants for metal halide complex species were determined and the ΔG°, ΔH°, and ΔS° values of the corresponding equilibria evaluated. The results are compared with data obtained in other nitrate melts and discussed in terms of a quasi-lattice model for reciprocal molten salt systems.