Abstract
In this work, the equal-water activities for the ternary system LiCl−KCl−H2O and its sub-binary systems LiCl−H2O were determined using an isopiestic method at 323.15 K. The determined isopiestic composition lines for the LiCl−KCl−H2O system were found to deviated Zdanovskii rule high with increasing ionic strength of the mixture solution. The addition of KCl to an aqueous solution of LiCl was found to decrease and increase the water activity at low and high LiCl molality. The Pitzer–Simonson–Clegg (PSC) model was used to represent the experimental determined water activities of the titled system and the calculated values are discussed. Based on the calculated results, the turning point appears at about 17.0 mol kg−1 LiCl solution.
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The authors gratefully thank the National Natural Science Foundation of China (Grants 52164037), Natural Science Foundation of Hainan Province (221RC586) and Scientific Research Foundation of Hainan Tropical Ocean University (RHDRC202102) for financial support of this work.
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Han, H.J., Ma, J.J., **ng, K.Q. et al. Isopiestic Determination and Simulation of Water Activity in the LiCl−KCl−H2O Ternary System at 323.15 K. Russ. J. Inorg. Chem. 67 (Suppl 1), S78–S84 (2022). https://doi.org/10.1134/S0036023622601891
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DOI: https://doi.org/10.1134/S0036023622601891