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Abstract <p>A temperature-dependent Pitzer–Simonson–Clegg (PSC) model for the binary system LiNO<sub>3</sub> + H<sub>2</sub>O was constructed. The phase equilibrium properties of system LiNO<sub>3</sub> + H<sub>2</sub>O were simulated by PSC model, and the temperature-dependent parameters of PSC model were obtained by this work, which well reproduced the thermodynamic properties of the binary system LiNO<sub>3</sub> + H<sub>2</sub>O including water activity, mean ionic activity coefficient, heat capacity, dilution enthalpy and vapor pressure. Meanwhile, the equilibrium phase diagram of the binary system LiNO<sub>3</sub> + H<sub>2</sub>O at 250–420 K were calculated, the result shows that the calculation results were in good agreement with the experimental results reported in the literature.</p>

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Phase Diagram and Thermodynamic Modeling for Binary System LiNO3 + H2O

  • 期刊论文

  • 发表日期：

    2025年12月1日

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  • Lin Wang,
  • Chang L. Lan

摘要

Abstract

A temperature-dependent Pitzer–Simonson–Clegg (PSC) model for the binary system LiNO3 + H2O was constructed. The phase equilibrium properties of system LiNO3 + H2O were simulated by PSC model, and the temperature-dependent parameters of PSC model were obtained by this work, which well reproduced the thermodynamic properties of the binary system LiNO3 + H2O including water activity, mean ionic activity coefficient, heat capacity, dilution enthalpy and vapor pressure. Meanwhile, the equilibrium phase diagram of the binary system LiNO3 + H2O at 250–420 K were calculated, the result shows that the calculation results were in good agreement with the experimental results reported in the literature.