2008, Vol. 66(16): 1879-1883
An ionic liquid (IL) based on zinc chloride BMIZn2Cl5 has been synthesized under a dry argon atmosphere. The density and surface tension of the ionic liquid (IL) in a temperature range from 313.15 to 343.15 K were determined. The values of thermal expansion coefficient and surface entropy were estimated by extrapolation. In terms of Glasser’s theory, the standard molar entropy and lattice energy of the BMIZn2Cl5 were estimated. The thermal expansion coefficient, α, calculated by an interstice model is of the same order of magnitude as the experimental value. Using the methods of Kabo and Rebelo, the molar enthalpy of vaporization of the IL, at 298 K and at the hypothetical normal boiling point were estimated.
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