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<p>The density and viscosity of binary liquid mixtures of benzyl amine and o-substituted anilines (2-methoxyaniline, 2-chloroaniline, and 2-methylaniline) covering the entire composition of benzyl amine were measured at temperatures <i>T</i> = 303.15–313.15&#xa0;K with 5&#xa0;K intervals and at atmospheric pressure. Using measured data, thermodynamic properties such as excess molar volume and deviation in viscosity were evaluated. The variation of these parameters has been interpreted in relation to developing of new intermolecular interactions in these mixtures. The results show that the extent of benzyl amine + o-substituted amines interactions follows the order: 2-methoxyaniline &gt; 2-chloroaniline &gt; 2-methylaniline. Furthermore, the computed data along with experimental data were also correlated to compositions using Redlich–Kister polynomial and Jouyban–Acree models. In addition, the excess molar volume was theoretically characterized using Prigogine–Flory–Patterson theory.</p>

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Thermodynamic Properties of Binary Liquid Mixtures of Benzyl Amine and O-Substituted Anilines (2-Methoxyaniline, 2-Chloroaniline, 2-Methylaniline) at Varying Temperatures

  • 期刊论文

  • 发表日期：

    2026年1月10日

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  • Acha Swapna,
  • Srinivasa Reddy Bireddy,
  • Kasturi Srinivas,
  • Balakrishna Matkala,
  • Siddhartha Marupati,
  • Bolloju Satheesh

摘要

The density and viscosity of binary liquid mixtures of benzyl amine and o-substituted anilines (2-methoxyaniline, 2-chloroaniline, and 2-methylaniline) covering the entire composition of benzyl amine were measured at temperatures T = 303.15–313.15 K with 5 K intervals and at atmospheric pressure. Using measured data, thermodynamic properties such as excess molar volume and deviation in viscosity were evaluated. The variation of these parameters has been interpreted in relation to developing of new intermolecular interactions in these mixtures. The results show that the extent of benzyl amine + o-substituted amines interactions follows the order: 2-methoxyaniline > 2-chloroaniline > 2-methylaniline. Furthermore, the computed data along with experimental data were also correlated to compositions using Redlich–Kister polynomial and Jouyban–Acree models. In addition, the excess molar volume was theoretically characterized using Prigogine–Flory–Patterson theory.