This paper reports the density and viscosity of aqueous tetraethylene glycol dimethyl ether (TTEGDME) solutions at five temperatures in the range of 298.15 K to 343.15 K over the whole concentration range. The results are compared with data published in the literature. The excess molar volumes, the partial molar volumes at infinite dilution, Grunberg-Nissan parameters, and viscosity deviations were derived.