Physical properties, such as density (rho), speed of sound (u) and refractive index (n(D)) for pure [Emim][BF4], 2-methoxyethanol and their binary mixtures are measured over the whole composition range as a function of temperature between (298.15-328.15) K at atmospheric pressure. Experimental values were used to calculate the excess values of molar volumes (V-m(E)), partial molar volumes ((V) over bar (E)(m)), partial molar volumes at infinite dilution ((V) over bar (E,infinity)(m)) excess/deviation values of isentropic compressibility (K-s(E)), acoustic impedance (Z(E)), free length (L-f(E)), speeds of sound (u(E)), refractive index (Delta(phi)n(D)) and isobaric thermal expansion coefficient (alpha(E)(P)) for the binary mixtures. These excess/deviation properties are fitted to the Redlich-Kister type equation to obtain the binary coefficients and the standard deviations. A qualitative analysis of these parameters indicates strong intermolecular interactions between the liquids in study. This was further supported by IR spectroscopy. (C) 2016 Elsevier B.V. All rights reserved.