Density and surface tension of binary mixtures of 1-ethyl-3-methylimdazolium nitrate with alcohols

New experimental data of densities and surface tensions are presented for the binary mixtures of the ionic liquid 1-ethyl-3-methyl imidazolium nitrate ([EMIM]NO3) with methanol and ethanol. Measurements were performed at 298.15 K and atmospheric pressure, covering the whole composition range. Excess molar volumes VE and the surface tension deviations δγ have been determined. For the excess molar volumes of binary mixture, there is a region of negative VE at low IL mole fraction, passing through a minimum and then VE increases and becomes positive, showing maximum at higher IL mole fraction. It is shown that the surface tension deviations δγ of [EMIM]NO3 + methanol system are positive but those of [EMIM]NO3 + ethanol system are negative over the entire mole fraction range.