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<p>Densities, sound speeds, excess molar volumes, and excess isentropic compressibilities were measured for binary mixtures of bromobenzene with methanol, ethanol, propan-1-ol, butan-1-ol, and pentan-1-ol over (293.15–333.15) K at atmospheric pressure. This work presents a systematic thermophysical study of bromobenzene + alkan-1-ol (C<sub>1</sub>-C<sub>5</sub>) mixtures conducted over a previously unexplored temperature range and providing the first unified dataset for the complete bromobenzene + alkan-1-ol (C<sub>1</sub>-C<sub>5</sub>) series. Excess properties were correlated using Redlich–Kister polynomials, providing insight into molecular interactions and packing effects. The Jouyban-Acree model accurately reproduced densities, sound speeds, isobaric thermal expansivities, and isentropic compressibilities, with average absolute percentage deviations below 0.53%. Densities were further modeled with the Perturbed-Chain Statistical Associating Fluid Theory, yielding an overall deviation of 0.20%. Nomoto’s relation outperformed Schaaff’s collision factor theory in predicting sound speeds, with an overall deviation of 1.54%. These results demonstrate the effectiveness of empirical and theoretical models in describing thermophysical behavior in bromobenzene + alkan-1-ol mixtures of varying chain length.</p>

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Experimental study and modeling of binary mixtures of bromobenzene with alkan-1-ol (C1-C5) at a range of temperatures and atmospheric pressure

  • 期刊论文

  • 发表日期：

    2026年2月24日

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  • Fisnik Aliaj,
  • Naim Syla,
  • Ariel Hernández,
  • Arbër Zeqiraj

摘要

Densities, sound speeds, excess molar volumes, and excess isentropic compressibilities were measured for binary mixtures of bromobenzene with methanol, ethanol, propan-1-ol, butan-1-ol, and pentan-1-ol over (293.15–333.15) K at atmospheric pressure. This work presents a systematic thermophysical study of bromobenzene + alkan-1-ol (C1-C5) mixtures conducted over a previously unexplored temperature range and providing the first unified dataset for the complete bromobenzene + alkan-1-ol (C1-C5) series. Excess properties were correlated using Redlich–Kister polynomials, providing insight into molecular interactions and packing effects. The Jouyban-Acree model accurately reproduced densities, sound speeds, isobaric thermal expansivities, and isentropic compressibilities, with average absolute percentage deviations below 0.53%. Densities were further modeled with the Perturbed-Chain Statistical Associating Fluid Theory, yielding an overall deviation of 0.20%. Nomoto’s relation outperformed Schaaff’s collision factor theory in predicting sound speeds, with an overall deviation of 1.54%. These results demonstrate the effectiveness of empirical and theoretical models in describing thermophysical behavior in bromobenzene + alkan-1-ol mixtures of varying chain length.