Thermodynamic and transport properties of binary mixtures containing N-Ethylethanamine and (C5 − C9) 1-Alkanol: PC-SAFT model

Abstract

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.