Prediction of Activity Coefficients for Mixed Aqueous Electrolyte Solutions from the Data of Their Binary Solutions
Copyright policy )Prediction of Activity Coefficients for Mixed Aqueous Electrolyte Solutions from the Data of Their Binary Solutions
Abstract The simple equation relating the activity coefficient of each solute in mixed electrolyte solution to its value in binary solutions under isopiestic equilibrium was tested by comparison with the experimental data for the 18 electrolyte solutions consisting of 1:1, 1:2, and 1:3 electrolytes. The isopiestic measurements were made on the quaternary system BaCl 2 -NH 4 Br-NaI-H 2 O and its ternary subsystems NaI-NH 4 Br-H 2 O, NaI-BaCl 2 -H 2 O, and NH 4 Br-BaCl 2 -H 2 O at 298.15K. The results were used to test the applicability of the Zdanovskii's rule to the mixed electrolyte solutions which contain no common ions, and the agreement is excellent. The activity coefficients of the solutes in the above quaternary and ternary systems calculated from the above-mentioned simple equation are in good agreement with the Pitzer's equation.
- Guangzhou Institute of Energy Conversion China (People's Republic of)
- China University of Petroleum, Beijing China (People's Republic of)
- Chinese Academy of Sciences China (People's Republic of)
- State Key Laboratory of Heavy Oil China (People's Republic of)
- Chinese Academy of Science (中国科学院) China (People's Republic of)
Isopiestic Measurement, Technology, Science & Technology, TEMPERATURE 298.15 K, LINEAR ISOPIESTIC RELATION, PITZER EQUATIONS, Chemical, ABSOLUTE RATE THEORY, SODIUM-CHLORIDE, 540, SENSITIVE GLASS ELECTRODES, 510, Engineering, ORDER ELECTROSTATIC TERMS, The Zdanovskii's Rule, ZDANOVSKII RULE, ION INTERACTION PARAMETERS, Electrolyte Solution, The Pitzer's Equation, POTASSIUM CHLORIDE, Activity Coefficient
Isopiestic Measurement, Technology, Science & Technology, TEMPERATURE 298.15 K, LINEAR ISOPIESTIC RELATION, PITZER EQUATIONS, Chemical, ABSOLUTE RATE THEORY, SODIUM-CHLORIDE, 540, SENSITIVE GLASS ELECTRODES, 510, Engineering, ORDER ELECTROSTATIC TERMS, The Zdanovskii's Rule, ZDANOVSKII RULE, ION INTERACTION PARAMETERS, Electrolyte Solution, The Pitzer's Equation, POTASSIUM CHLORIDE, Activity Coefficient
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