Molten salt mixtures. XI. Integral and partial molar volumes in the molten salt systems PbCl₂ + NaCl, PbCl₂ + RbCl, PbCl₂ + CsCl, CdCl₂ + RbCl, and CdCl₂ + CsCl

Abstract

The densities of molten PbCl₂, CsCl, and RbCl and of the molten salt systems PbCl₂ + NaCl, PbCl₂ + RbCl, PbCl₂ + CsCl, CdCl₂ + RbCl, and CdCl, + CsCl have been measured to an accuracy of ±0.1% by an Archimedean method over a considerable temperature range. Integral and partial molar volume isotherms have been constructed for the above binary systems and are interpreted to show that complex ions are formed in all but the PbCl₂+NaCl system.