Revisiting the thermodynamic properties of the LiCl-NaCl-KCl-H2O quaternary and its sub-ternary systems at 298.15Â K

The phase diagram of the quaternary system LiCl-NaCl-KCl-H2O have been predicted with a Pitzer-Simonson-Clegg thermodynamic model by combining the binary and ternary model parameters, which were determined by simulating reliable experimental data. The predicted phase diagram shows a good agreement with the available experiment data from the literature. The other thermodynamic properties (e.g. water activity) of the quaternary and its sub-ternary systems have been investigated by the model and compared with the experimental data in literature. Significant improvements have been made in comparison with assessments.