Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

ABSTRACT

The experimental data for the density and viscosity 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 and viscosity of the solutions were used to compute different derived parameters, such as apparent molar volume of the solute, excess molar volume 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 have been obtained for aqueous binary mixtures of these glycol ethers by smooth extrapolation of apparaent molar volume vs. m curves to zero concentration. By using the values of limiting apparent molar volume, the limiting excess partial molar volumes have also been calculated. The results are interpreted in term of various interactions such as solute-solvent interactions and hydrogen bonding.