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Based on the various thermodynamic models for concentrated electrolyte and nonelec-trolyte solutions, the correlation equations of activity coefficeints and methods of solubility predictionfor ternary and quarternary systems have been developed. Ouly a few of experimental data are neededto calculate the interaction parameters. This method can be used to calculate the solubilities of thecomponents for a given concentration of the unsaturated ones, the predicted solubilities agree withexperimental data quite well.
Based on the various thermodynamic models for concentrated electrolyte and nonelec-trolyte solutions, the correlation equations of activity coefficeints and methods of solubility prediction for ternary and quarternary systems have been developed. Ouly a few of experimental data are needed to calculate the interaction parameters. This method can be used to calculate the solubilities of thecomponents for a given concentration of the unsaturated ones, the predicted solubilities agree withexperimental data quite well.