10.1021/je501162f.s001 Ouahid Ben Ghanem Ouahid Ben Ghanem M.I. Abdul Mutalib M.I. Abdul Mutalib Jean-Marc Lévêque Jean-Marc Lévêque Girma Gonfa Girma Gonfa Chong Fai Kait Chong Fai Kait Mohanad El-Harbawi Mohanad El-Harbawi Studies on the Physicochemical Properties of Ionic Liquids Based On 1‑Octyl-3-methylimidazolium Amino Acids American Chemical Society 2015 Ionic Liquids molar entropy Physicochemical Properties thermophysical properties asparaginate anions surface tension heat capacity expansion coefficient values lattice energy Physicochemical properties 2015-06-11 00:00:00 Journal contribution https://acs.figshare.com/articles/journal_contribution/Studies_on_the_Physicochemical_Properties_of_Ionic_Liquids_Based_On_1_Octyl_3_methylimidazolium_Amino_Acids/2158651 A series of new synthesized ionic liquids based on 1-octyl-3-methylimidazolium with glycinate, alaninate, serinate, prolinate, and asparaginate anions were prepared. Their thermophysical properties (density, viscosity, surface tension, and heat capacity) were measured at various temperatures and atmospheric pressures. Physicochemical properties such as thermal expansion coefficient values, molecular volume, standard molar entropy, and lattice energy standard were also determined using empirical methods. The effects of anions on the studied properties were further analyzed.