Studies on Thermodynamics of MX-NX2 and MX-NX3 Aqueous Electrolyte Solutions

Abstract

Abstract: The effects of the higher-order electrostatic terms on the thermodynamic properties of unsymmetrically mixed electrolytes with identical ion were investigated in the evaluation of the Pitzer mixing parameters, and the relationship between mixing parameter(θ_ij) and ionic strength (I) was used in the evaluation.The Pitzer mixing parameters ^Sθ_ij⁽⁰⁾、^Sθ_ij⁽¹⁾, and φ_ijk were evaluated for MX-NX₂ and MX-NX₃ aqueous electrolyte solutions at 25℃.The calculation results are in good consistent with reference data.

Key words: Electrolyte solution, Pitzer equation, Higher-order electrostatic term, Activity coefficient, Osmotic coefficient

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SHENTU Yan-ming, LI Yi-gui . Studies on Thermodynamics of MX-NX₂ and MX-NX₃ Aqueous Electrolyte Solutions[J]. Chem. J. Chinese Universities, 1992, 13(3): 366.

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Studies on Thermodynamics of MX-NX₂ and MX-NX₃ Aqueous Electrolyte Solutions

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