Excess Molar Volumes and Viscosities for Glycol Ether−Water Solutions at the Temperature 308.15 K: Ethylene Glycol Monomethyl, Diethylene Glycol Monomethyl, and Triethylene Glycol Monomethyl Ethers

Abstract

Excess molar volumes and viscosities (η) have been determined as a function of mole fraction for binary liquid mixtures of water with ethylene glycol monomethyl ether (2-methoxyethanol), CH3O(CH2)2OH, diethylene glycol monomethyl ether (2-(2-methoxyethoxy)ethanol), CH3O(CH2)2O(CH2)2OH, and triethylene glycol monomethyl ether (2-[2-(2-methoxyethoxy)ethoxy]ethanol), CH3O(CH2)2O(CH2)2O(CH2)2OH, at 308.15 K. Densities (ρ) of the mixtures have been calculated from the results. The excess volumes are negative over the entire composition range for the systems studied. The results for and η are discussed in terms of interactions of water with an amphiphilic molecule.