Heat capacity and thermal conductivity of molten ternary lithium, sodium, potassium, and zirconium fluorides mixtures

Abstract This article reports the experimental data on the key thermal properties of some molten salt eutectics containing lithium, sodium, potassium, zirconium, and thorium fluorides. Their melting points, enthalpies of melting, heat capacities were measured using STA 449C Jupiter® synchronous thermal analyzer while the thermal conductivity was determined by the steady-state method of coaxial cylinders. The validity of the empirical equations proposed for estimating the isobaric heat capacity ( c p ) and thermal conductivity ( λ ) of the possible MSR coolants and fuels is discussed.