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<p>This study investigated the solubility of isophthalic acid in binary mixtures of 1-propanol/2-propanol and water, across temperatures from 298.2 to 313.2&#xa0;K. The solubility was determined using a laser-based robotic system. The resulting solubility data were analyzed through various mathematical models, including the van’t Hoff, Jouyban–Acree, Jouyban–Acree–van’t Hoff, mixture response surface, and modified Wilson models. The experimental data on isophthalic acid dissolution included several thermodynamic properties such as Δ<i>G°</i>, Δ<i>H°</i>, Δ<i>S°</i>, and <i>T</i>Δ<i>S°.</i> These properties provided important insights into the energetic aspects of the dissolution process and were calculated using the van’t Hoff equation.</p>

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Utilizing a Laser Monitoring-Based Method for Solubility and Thermodynamics Study of Isophthalic Acid in Aqueous Mixtures of 1-Propanol/2-Propanol

  • 期刊论文

  • 发表日期：

    2025年7月20日

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  • Vahid Jouyban-Gharamaleki,
  • Salar Hemmati,
  • Soma Khezri,
  • Elaheh Rahimpour,
  • Abolghasem Jouyban

摘要

This study investigated the solubility of isophthalic acid in binary mixtures of 1-propanol/2-propanol and water, across temperatures from 298.2 to 313.2 K. The solubility was determined using a laser-based robotic system. The resulting solubility data were analyzed through various mathematical models, including the van’t Hoff, Jouyban–Acree, Jouyban–Acree–van’t Hoff, mixture response surface, and modified Wilson models. The experimental data on isophthalic acid dissolution included several thermodynamic properties such as ΔG°, ΔH°, ΔS°, and TΔS°. These properties provided important insights into the energetic aspects of the dissolution process and were calculated using the van’t Hoff equation.