Activities and activity coefficients in ternary systems

1953 ◽  
Vol 49 ◽  
pp. 237 ◽  
Author(s):  
H. A. C. McKay
Keyword(s):  
Activity Coefficients ◽  
Ternary Systems

Osmotic and activity coefficients for the CsF+methanol or ethanol+water ternary systems determined by potentiometric measurements

2012 ◽  
Vol 336 ◽  
pp. 34-40 ◽  
Author(s):  
Jing Tang ◽  
Lei Wang ◽  
Shu’ni Li ◽  
Quanguo Zhai ◽  
Yucheng Jiang ◽  
...  
Keyword(s):  
Activity Coefficients ◽  
Ternary Systems ◽  
Potentiometric Measurements

Activity Coefficients for CsBr + MeOH/EtOH + H2O Ternary Systems Using Potentiometric Measurements at 298.15 K

2012 ◽  
Vol 57 (9) ◽  
pp. 2603-2609 ◽  
Author(s):  
Yanping Du ◽  
Jing Tang ◽  
Shu’ni Li ◽  
Quanguo Zhai ◽  
Yucheng Jiang ◽  
...  
Keyword(s):  
Activity Coefficients ◽  
Ternary Systems ◽  
Potentiometric Measurements

Physical Interpretation of Solubility Interaction Constants from the Series Expansion of the Relative Activity Coefficients

1994 ◽  
Vol 59 (9) ◽  
pp. 1911-1921 ◽  
Author(s):  
Jaroslav Nývlt ◽  
Jitka Eysseltová
Keyword(s):  
Activity Coefficient ◽  
Series Expansion ◽  
Activity Coefficients ◽  
Physical Interpretation ◽  
Ternary Systems ◽  
Relative Activity ◽  
Solubility Data ◽  
Close Relationship ◽  
Insight Into ◽  
Saturated Solutions

Hydration analysis, which enables information on ionic processes in saturated solutions to be derived from solubility data in ternary systems, was applied to the interpretation of solubility interaction constants from the relative activity coefficient expansion. A close relationship was found between the hydration analysis parameters and the solubility interaction constants characterizing the relative activity of solute, which extends our insight into the ionic behaviour of the system studied by using the values of the interaction constants.

scholarly journals DETERMINATION OF SELECTIVITY AND MASS TRANSFER IN LIQUID-PHASE EXTRACTION FOR BUTYL GLYCOL-WATER-ISOPROPYL ETHER SYSTEM

2020 ◽  
pp. 17-21
Author(s):  
A.A. Hasanov ◽  
Keyword(s):  
Activity Coefficients ◽  
Equilibrium Distribution ◽  
Ternary Systems ◽  
Selectivity Coefficient ◽  
Isopropyl Ether ◽  
Two Phases ◽  
The Given ◽  
Margules Equation ◽  
Ether System

The problems of phase equilibrium, the equilibrium distribution of a component between phases are considered, and the distribution coefficient is determined in two versions. A formula for determining the selectivity coefficient is obtained, equations relating the compositions of coexisting phases, by equating the activities in these phases, Margules constants are found. Based on the given content of the components, the numerical values of (Margules constant for A component in solvent S) and (Margules constant for S component in solvent A) were found Using the Margules equation for ternary systems, the activity coefficients of components A and B are determined in two phases. The experimentally obtained values of the molar fractions of each of the three components, responsible to different points of the binodal curve, the corresponding activity coefficients of component B, and also calculated on these coefficients of the activity values

Hydration Analysis and the Expansion of Relative Activity Coefficients

2000 ◽  
Vol 65 (12) ◽  
pp. 1833-1838
Author(s):  
Jaroslav Nývlt
Keyword(s):  
Ternary System ◽  
Phase Equilibria ◽  
Activity Coefficients ◽  
Binary Systems ◽  
Ternary Systems ◽  
Relative Activity ◽  
Solubility Data ◽  
Thermodynamic Condition ◽  
Correlation Methods ◽  
Correlation Parameters

Of correlation methods for solubility in ternary systems, the method of expansion of relative activity coefficients and the hydration analysis are based on the thermodynamic condition of phase equilibria. Both of them require only reliable solubility data in the ternary system and corresponding binary systems. Correlation parameters of both of these methods are interrelated and the methods are compared on the system K2SO4-H2SO4-H2O at 50 °C.

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