Pressure-driven structural transitions in molten salts

Abstract

Liquid-structure types of molten salts near freezing at standard pressure have been classified on the basis of the relationship between melting entropy ΔS and melting volume ΔV in correlation with measured values of transport coefficients. Here we report on the evolution of these liquid-structure types under compression, with main attention to ZnCl₂ and AlCl₃ for which data from classical molecular dynamics simulations and from diffraction experiments exist.