Collect. Czech. Chem. Commun. 1983, 48, 2327-2334

Density estimates of binary aqueous solutions

Otakar Söhnela, Petr Novotnýa and Zdeněk Šolcb

a Chemopetrol, Research Institute of Inorganic Chemistry, 400 60 Ústí nad Labem
b Department of Inorganic Technology, Institute of Chemical Technology, 532 10 Pardubice


Two methods are given for assessment of density of binary aqueous solutions of electrolytes; one is based on partial molar volume of the dissolved electrolyte at infinite dilution, and the other is based on additivity of apparent molar volumes at a given concentration. The density estimates of aqueous solutions by means of the two methods are compared with experimental values for some electrolytes of the type 1-1 to 4 and 2-2. In all cases the estimates agree with experimental densities up to concentrations of the saturated solutions.