Water activities, activity coefficients and solubility in the binary and ternary aqueous solutions image with image

In this investigation, the ternary aqueous solutions of lithium chloride with alkaline earth metal {yLiCl+(1−y)Y Cl2}(aq) with Y triple bond; length of mdashMg2+; Ca2+; and Ba2+ have been studied using the hygrometric method at 298.15 K. The water activities are measured at total molalities from 0.20 mol kg−1 to saturation for different ionic-strength fractions y of LiCl with y=0.20, 0.50 and 0.80. The obtained data allow the deduction of osmotic coefficients. From these measurements, the mixing ionic parameters image and image are determined and used to predict the solute activity coefficients in the mixtures.