Study on the molecular interactions of some binary mixtures through thermodynamic properties and FT-IR spectra and correlation with the Jouyban–Acree model

Abstract

ABSTRACT Densities (ρ), speeds of sound (u) and viscosities (η) were measured for three binary mixtures of propargyl alcohol with tetra chloromethane, trichloromethane, and dichloromethane from 303.15 K to 313.15 K at atmospheric pressure across the composition range. Excess molar volume, excess isentropic compressibility, deviation in viscosity, and excess Gibbs free energy of activation of viscous flow were calculated. Partial molar properties and infinite dilution molar partial properties were also determined for each system. Results suggest heteroassociates forming cross complexes and chemical forces with specific interactions. PFP theory was used to identify the predominant molecular interactions. The Jouyban–Acree model findings were discussed, considering mean relative deviation (MRDs) and individual relative deviation (IRD) between calculated and experimental data. FTIR studies were included to corroborate the experimental findings.