ABSTRACT

Thermodynamic and transport properties for the binary mixtures of N-Ethylethanamine (EEA) with 1-pentanol up to 1-nonanol at temperatures 298.15 K, 308.15 K, and 318.15 K were reported in this study. Calculation of the excess molar volumes exhibits that the considered mixtures have a negative deviation from the Raoult’s Law. Deviation from ideality increases as the alkyl chain increases. Strong molecular interactions occur in the above binary mixtures due to the formation of hydrogen bonds, dipole-dipole interactions and dispersive forces. Obtaining results were analysed to gain information about the liquid structure in the binary mixtures. The investigation has shown that increasing the alcohol chain length reinforces the strength of intermolecular forces between EEA and 1-alkanol. The perturbed chain statistical association fluid theory (PC-SAFT) with the correlative ability was implemented to the densities of the binary mixtures, and outcomes of this theory indicate that the agreement between experimental data and calculated values is reasonable. Maximum deviation was found for the binary mixtures EEA + 1-hexanol with the absolute average deviation of 0.016.

摘要

N的二元混合物的热力学和输运性质- 乙胺 (EEA) 在 298.15 K、308.15 K 和 318.15 K 的温度下具有 1-戊醇至 1-壬醇。过量摩尔体积的计算表明所考虑的混合物与拉乌尔定律有负偏差。随着烷基链的增加，与理想的偏差增加。由于氢键的形成、偶极-偶极相互作用和分散力，在上述二元混合物中会发生强分子相互作用。分析获得的结果以获得关于二元混合物中液体结构的信息。研究表明，增加醇链长度可以增强 EEA 和 1-烷醇之间的分子间作用力。将具有相关能力的微扰链统计关联流体理论（PC-SAFT）应用于二元混合物的密度，该理论的结果表明实验数据与计算值之间的一致性是合理的。发现二元混合物 EEA + 1-己醇的最大偏差，绝对平均偏差为 0.016。