%I American Chemical Society %A A.K. Ziyada %A C.D. Wilfred %V 59 %T Physical properties of ionic liquids consisting of 1-butyl-3- propanenitrile- and 1-decyl-3-propanenitrile imidazolium-based cations: Temperature dependence and influence of the anion %P 1232-1239 %X The effect of cationic and anionic chain lengths and temperature dependence of physical properties for a new series of 1-butyl-3-propanenitrile and 1-decyl-3-propanenitrile imidazolium-based ionic liquids were studied in a broad range of temperature (293.15 to 353.15) K at atmospheric pressure. The present ILs show lower densities, higher viscosities, and comparable values of refractive index compared to those of analogous nitrile-functionalized ILs with different anions. The thermal expansion coefficient, compressibility coefficient, and molar refraction were calculated from the experimental values of density and refractive index. These ILs show a weak temperature dependency of the thermal expansion coefficient. © 2014 American Chemical Society. %K Atmospheric pressure; Ionic liquids; Negative ions; Physical properties; Temperature distribution, Compressibility coefficient; Experimental values; Imidazolium-based; Imidazolium-based ionic liquid; Molar refractions; Temperature dependence; Temperature dependencies; Thermal expansion coefficients, Refractive index %J Journal of Chemical and Engineering Data %L scholars4313 %O cited By 19 %N 4 %R 10.1021/je400849a %D 2014