Volumetric and transport behaviour of 2-butoxy ethanol with 1-alcohols: application of Prigogine–Flory–Patterson theory

Abstract

Non-ideal behaviours of binary mixtures of 2-butoxy ethanol with 1-hexanol, 1-octanol and 1-decanol have been analysed at different temperatures and over the whole composition range. For this purpose, experimental densities were used to estimate apparent molar volumes V f; i , partial molar volumes V m;1 , excess partial molar volumes V E m;1 . and their limiting values at infinite dilution V 1 f;i , V 1 m;i and V E;1 m;i respectively. Experimental viscosities were used to calculate the deviations in viscosity, Δη. The calculated properties were interpreted in terms of molecular interactions and structural effects. A volumetric result has been analysed in the light of PrigogineFlory-Patterson (PFP) statistical mechanical theory. Interaction parameters have been calculated from V E m values for all the studied systems. The solute-solvent interactions have been investigated in terms of each of the three contributions, viz. interactional, free volume and P * obtained from PFP theory at equimolar concentration. The results of V E m calculated from PFP theory are compared with the V E m reported in our earlier communication.

Studies of Mixing Properties of Binary Systems of 2-Butoxy Ethanol with Amines at 298.15, 303.15, and 308.15 K

“…in the liquid phase . Alkoxy ethanols are a very interesting class of organic solvents from a practical point of view, as oxygenated solvents find extensive use as additives to gasoline because of their octane-enhancing and pollution-reducing properties . In addition, hydroxyethers being nonionic amphiphiles are used as surfactants with a large number of applications.…”