Association‐based Activity Coefficient Model for Electrolyte Solutions

AIChE Journal ◽  
2021 ◽  
Author(s):  
Yu‐Jeng Lin ◽  
Cheng‐Ju Hsieh ◽  
Chau‐Chyun Chen
Keyword(s):  
Activity Coefficient ◽  
Electrolyte Solutions ◽  
Activity Coefficient Model

Activity coefficient model of concentrated electrolyte solutions

AIChE Journal ◽  
1990 ◽  
Vol 36 (12) ◽  
pp. 1896-1900 ◽  
Author(s):  
Weixin Song ◽  
Maurice A. Larson
Keyword(s):  
Activity Coefficient ◽  
Electrolyte Solutions ◽  
Concentrated Electrolyte Solutions ◽  
Activity Coefficient Model

An Activity Coefficient Model Based on the Hydration for Electrolyte Solutions

2013 ◽  
Vol 781-784 ◽  
pp. 379-382
Author(s):  
Lian Ying Wu ◽  
Xian Zhen Xu ◽  
Yang Dong Hu
Keyword(s):  
Activity Coefficient ◽  
Electrolyte Solution ◽  
Elevated Temperatures ◽  
Electrolyte Solutions ◽  
Solute Molecule ◽  
Water Molecules ◽  
Model Based ◽  
Activity Coefficient Model

This paper proposes a hypothesis of hydration. It assumes that the solute in the electrolyte solution exists as molecules, and each solute molecule is surrounded by h water molecules. On this basis, this paper deduces the activity coefficient formulas, and the model is applied to binary electrolyte solutions at room and elevated temperatures.

Improved QSPR generalized interaction parameters for the nonrandom two-liquid activity coefficient model

2013 ◽  
Vol 339 ◽  
pp. 20-30 ◽  
Author(s):  
Solomon Gebreyohannes ◽  
Krishna Yerramsetty ◽  
Brian J. Neely ◽  
Khaled A.M. Gasem
Keyword(s):  
Activity Coefficient ◽  
Interaction Parameters ◽  
Activity Coefficient Model

Solvation effects on the conductivity of concentrated electrolyte solutions

1976 ◽  
Vol 54 (18) ◽  
pp. 2953-2966 ◽  
Author(s):  
Douglas E. Goldsack ◽  
Raymond Franchetto ◽  
Arlene (Anttila) Franchetto
Keyword(s):  
Activity Coefficient ◽  
Alkali Halide ◽  
Infinite Dilution ◽  
Electrolyte Solutions ◽  
Molar Conductance ◽  
The Other ◽  
Solvation Number ◽  
Parameter Equation ◽  
Conductance Data ◽  
Halide Salts

The Falkenhagen–Leist–Kelbg equation for the conductivity of electrolyte solutions has been extended to include the effect of solvation on the concentration of the salt. Two equations have been derived, both of which have only two freely adjustable parameters at any temperature: Λ0 the molar conductance of the salt at infinite dilution and H0, a solvation number parameter for the salt. In one of these equations H0 is assumed to be independent of concentration. In the other, H0 is assumed to be dependent on concentration and an explicit concentration dependent formula is derived for H0. Conductance data for the alkali halide salts in the 0.5 to 10 m concentration range and 0 to 60 °C temperature range were found to be adequately reproduced by both these equations, but with the variable hydration parameter equation yielding better fits to the data. The H0 parameters from the fixed hydration parameter equation are found to be similar to those obtained from the analysis of activity coefficient and other data whereas the variable hydration parameter equation yields H0 parameters which are much larger.

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