Correlation of solubilities for the NaCl+LiCl+H2O system with the Pitzer model at 15, 25, 50, and 100∘C

Solubility data of the NaCl+LiCl+H2O system have been measured at 15 ∘C. These data along with others recorded in the literature, at 25, 50, and 100 ∘C, have been correlated using the Pitzer model and the extended Debye–Hückel model. The latter was used to determine the activity and osmotic coefficients of the binary systems NaCl+H2O and LiCl+H2O. The results obtained in this work show that the calculated solubility values are in good agreement with the experimental ones.