@article{scholars2092, journal = {Journal of Chemical and Engineering Data}, pages = {2557--2562}, year = {2011}, title = {Estimation of physicochemical properties of ionic liquids H 2N-C2mimBF4 and H2N-C 3mimBF4}, number = {5}, note = {cited By 24}, volume = {56}, doi = {10.1021/je200068x}, issn = {00219568}, author = {Kurnia, K. A. and Mutalib, M. I. A. and Ariwahjoedi, B.}, keywords = {Boiling temperature; Coefficient of thermal expansion; Critical temperatures; Density data; Experimental values; Guggenheim; Lattice energies; Molar enthalpy; Molecular volume; Physicochemical property; Standard molar entropy; Surface entropies; Tetrafluoroborates; Thermal expansion coefficients, Boiling liquids; Density of liquids; Enthalpy; Entropy; Ions; Surface properties; Surface tension; Thermal expansion, Ionic liquids}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-79956148652&doi=10.1021\%2fje200068x&partnerID=40&md5=1d4d171fccf70550465834ff5743a639}, abstract = {The density and surface tension of the ionic liquids 1-(2-aminoethyl)-3- methylimidazolium tetrafluoroborate, H2N-C2mimBF 4, and 1-(3-aminopropyl)-3-methylimidazolium tetrafluoroborate, H2N-C3mimBF4, were measured from (293.15 to 343.15) K. The coefficient of thermal expansion, molecular volume, standard molar entropy, and lattice energy were calculated using experimental density data. Meanwhile, the surface entropy and enthalpy were calculated from surface tension data. The critical temperature of the ionic liquids was estimated using the Guggenheim and E{\~A}{\P}tvos equations. The values were then used to estimate the boiling temperature of the ionic liquids according to methods of Rebelo et al. The molar enthalpy vaporization, {\^I}?lgHm0, of the ionic liquid at 298.15 K was estimated using the methods of Kabo et al. According to the interstice model, the thermal expansion coefficient of the ionic liquids, {\^I}{$\pm$}, was calculated, and the result was in very good agreement with the experimental value. {\^A}{\copyright} 2011 American Chemical Society.} }