A Simplified Model for Calculation of the Gibbs Energy of Mixing in Crystals: Thermodynamic Theory, Restrictions and Applicability

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Title:A Simplified Model for Calculation of the Gibbs Energy of Mixing in Crystals: Thermodynamic Theory, Restrictions and Applicability
Creators:
Christov, Christomir
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 61, 11, pp. 1585-1599
Uncontrolled Keywords:Binary ternary solutions, Crystals, Mixing energy

Abstract

A simplified model has been set up for calculation of the molar Gibbs energy of mixing ∆<sub>mix</sub><i>G</i><sub>m</sub>(s) in crystals based on the assumption of a complete liquid-solid thermodynamic equilibrium in the water-salt systems. The procedure allows the ∆<sub>mix</sub><i>G</i><sub>m</sub>(s) values to be calculated from the experimental solubility data for the saturated binary and ternary solutions. The ∆<sub>mix</sub><i>G</i><sub>m</sub>(s) values and the excess Gibbs energy of mixing ∆<sub>mix</sub><i>G</i><sup>E</sup><sub>m</sub>(s) were calculated for six alkali-halide systems (KCl-RbCl-H<sub>2</sub>O, KBr-RbBr-H<sub>2</sub>O, KI-RbI-H<sub>2</sub>O, NH<sub>4</sub>Cl-NH<sub>4</sub>Br-H<sub>2</sub>O, RbCl-RbBr-H<sub>2</sub>O and CsCl-CsBr-H<sub>2</sub>O). The results obtained were compared with experimental data taken from the literature and values calculated based on various theoretical approaches.

Title:A Simplified Model for Calculation of the Gibbs Energy of Mixing in Crystals: Thermodynamic Theory, Restrictions and Applicability
Creators:
Christov, Christomir
Uncontrolled Keywords:Binary ternary solutions, Crystals, Mixing energy
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:61
Number:11
Page Range:pp. 1585-1599
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc19961585UNSPECIFIED
ID Code:1060
Item Type:Article
Deposited On:06 Feb 2009 17:06
Last Modified:06 Feb 2009 16:06

Citation

Christov, Christomir (1996) A Simplified Model for Calculation of the Gibbs Energy of Mixing in Crystals: Thermodynamic Theory, Restrictions and Applicability. Collection of Czechoslovak Chemical Communications, 61 (11). pp. 1585-1599. ISSN 0010-0765

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