Equation of State for Molten Alkali Metal Alloys

Calculated results of the liquid density of binary molten alloys of Na-K and K-Cs over the whole range of concentrations and that of a ternary molten eutectic of Na-K-Cs from the freezing point up to several hundred degrees above the boiling point are preseInted. The calculations were performed with the analytical equation of state proposed by Ihm, Song, and Mason, which is based on statistical-mechanical perturbation theory. The second virial coefficients were calculated from the corresponding-states correlation of Mehdipour and Boushehri. Calculation of the other two temperature-dependent parameters was carried out by scaling. The calculated results cover a much wider range of temperatures and are more accurate than those preseInted in our previous work.