Thermodynamic and Transport Properties of a Four‐Component Alkali‐Metal Chloride Electrolyte

A mixture of , , , and has a eutectic melting point of. A pseudobinary phase diagram (liquidus temperature vs. mole fraction ) was measured in the low temperature range. The conductivity, density, and surface tension of this melt were determined as a function of temperature and mole fraction . The viscosity, solubility, and diffusivity were also determined. The conductivity of the eutectic mixture is 0.28 Ω−1 cm−1 at 280°C. The solubility of in the melt was at 310°C. The diffusivity of in the melt is at 307°C. The viscosity of the eutectic is 48.72 cP at 266°C and 39.52 cP at 277°C.