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<p>The solubility of 3,4-bis(3-nitrofurazan-4-yl)furoxan (DNTF) in propanoic acid + water (PA + water) binary mixed solvents was studied. The solubility of DNTF in the temperature range of 293.15 ~ 333.15&#xa0;K at atmospheric pressure (0.1&#xa0;MPa) was measured by a laser dynamic method. In order to expand the applicability of solubility, the Apelblat equation, van’t Hoff equation, GCM Model, and Jouyban-Acree Model were used to correlate the solubility, and satisfactory results were obtained. In addition, apparent thermodynamic parameters such as standard dissolution enthalpy, standard dissolution entropy, and standard Gibbs free energy of DNTF in these solvents were calculated. The solubility of DNTF will provide necessary support for industrial production, crystallization and further theoretical research. These findings provide valuable insights for future research on DNTF crystallization.</p>

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Solubility and Thermodynamic Analysis of 3,4-Bis(3-nitrofurazan-4-yl)furoxan in Propanoic Acid + Water Binary Mixed Solvents

  • 期刊论文

  • 发表日期：

    2025年2月4日

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  • Xiao li,
  • Jinjie Shen,
  • Jihui Zhang,
  • Liang Qin,
  • Jianlong Wang,
  • Lizhen Chen

摘要

The solubility of 3,4-bis(3-nitrofurazan-4-yl)furoxan (DNTF) in propanoic acid + water (PA + water) binary mixed solvents was studied. The solubility of DNTF in the temperature range of 293.15 ~ 333.15 K at atmospheric pressure (0.1 MPa) was measured by a laser dynamic method. In order to expand the applicability of solubility, the Apelblat equation, van’t Hoff equation, GCM Model, and Jouyban-Acree Model were used to correlate the solubility, and satisfactory results were obtained. In addition, apparent thermodynamic parameters such as standard dissolution enthalpy, standard dissolution entropy, and standard Gibbs free energy of DNTF in these solvents were calculated. The solubility of DNTF will provide necessary support for industrial production, crystallization and further theoretical research. These findings provide valuable insights for future research on DNTF crystallization.