Thermodynamics and transport properties of binary liquid mixtures at various temperatures (Morpholine, 2-methoxyether, 2-ethoxyether and 2-butoxyether)

Abstract

Densities (ρ) speeds of sound (u) and viscosities (η) of binary mixtures of morpholine with 2-methoxyethanol (M.E), 2-ethoxyethanol (E.E) and 2-butoxyethanol (B.E) including those of pure liquids, over the entire composition range were measured at temperatures (303.15, 308.15 and 313.15) K and 0.1 MPa. Using the experimental data, the excess volume (VE ), excess isentropic compressibility (), deviation in viscosity (Δη), Excess partial molar properties at infinite dilution , , and were calculated. Finally, the Prigogine-Flory-Patterson (PFP) Theory is applied to identify the most predominant molecular interaction.