Article,

Modeling electrolyte solutions with the extended universal quasichemical (UNIQUAC) model

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Pure and Applied Chemistry, 77 (3): 531--542 (2005)
DOI: 10.1351/pac200577030531

Abstract

The extended universal quasichemical (UNIQUAC) model is a thermodynamic model for solutions containing electrolytes and nonelectrolytes. The model is a Gibbs excess function consisting of a Debye–Hückel term and a standard UNIQUAC term. The model only requires binary ion-specific interaction parameters. A unique choice of standard states makes the model able to reproduce solid–liquid, vapor–liquid, and liquid–liquid phase equilibria as well as thermal properties of electrolyte solutions using one set of parameters.

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