Thermodynamic properties of dyscrasite (Ag 3 Sb) at isostatic pressures 4000-8000 bar

Abstract

The objective of the present study was to demonstrate the possibility of application of high-pressure equipment in combination with the solid state EMF technique. The equilibrium reaction 3 Ag+Sb?Ag3Sb was chosen for the studies. The experiments were carried out under argon gas pressure and the majority of data points were measured in the pressure range 4000–8000 bar at temperatures 550–725 K. The solid electrolyte consisted of AgI. Reproducible results were obtained along seven isotherms and one isobar at 7100 bar. The molar volume change for the reaction studied was calculated and compared with corresponding literature data at one bar.