Molecular Dynamics Simulation for the Densities of Molten Binary Alkali Metal Chlorides

The densities of molten LiCl-NaCl,LiCl-KCl,LiCl-RbCl,LiCl-CsCl,NaCl-KCl,NaCl-RbCl and NaCl-CsCl at different temperatures were calculated by molecular dynamics simulation within the full composition range.The addition of LiCl could reduce the densities of molten NaCl,KCl,RbCl and CsCl.NaCl could also reduce the densities of molten RbCl and CsCl,but increase the density of molten KCl.The densities of these mixtures all reduced with the increasing of temperature.In addition,the expression of density on temperatune and composition for these melts were fitted according to the calculated results.