Volumetric and viscometric study of aqueous binary mixtures of some glycol ethers at T = (275.15 and 283.15) K

Graphical abstract: Highlights: → Study of aqueous solutions of glycol ethers at low temperatures is presented. → Glycol ethers are industrially important liquids. → Reduction in the volume was observed upon addition of all glycol ethers to water. → Glycol ethers act as structure makers in aqueous medium. - Abstract: The experimental data for the density (ρ) and viscosity (η) are reported for aqueous binary mixtures of different glycol ethers, namely ethylene glycol monomethyl ether (EGMME), ethylene glycol monoethyl ether (EGMEE), diethylene glycol monomethyl ether (DEGMME), and diethylene glycol monoethyl ether (DEGMEE), at different temperatures (T = 275.15 K and 283.15 K) within the concentration range 0 mol . kg-1 to 0.1 mol . kg-1. The values of density (ρ) and viscosity (η) of the solutions were used to compute different derived parameters, such as apparent molar volume (φV) of the solute, excess molar volume (VE) of the solution, viscosity B and D coefficients of solution and temperature coefficient of viscosity B-coefficient (dB/dT) of solution. The limiting apparent molar volume of the solutes (φV0) have been obtained for aqueous binary mixtures of these glycol ethers by smooth extrapolation of φV-m curves to zero concentration. By using the values of φV0, the limiting excess partial molar volumes (V-bar20E) have also been calculated. The results are interpreted in term of various interactions such as solute-solvent interactions and hydrogen bonding.