Abstract
The change of the temperature of maximum density from that of pure water divided by the molality of the solution, the Despretz constant, has been measured for solutions of calcium chloride and of barium chloride. It is shown how the Despretz constant can be used to calculate values of ∂ V ∞ 2 /∂ T , where V ∞ 2 denotes the partial molar volume of the electrolyte at infinite dilution, which agree well with those obtained directly from measurements of density.
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