The study of thermodynamic properties of the ternary (1-ethyl-3-methylimidazolium hydrogen sulfate + lithium chloride + water) system and corresponding binary systems at different temperatures and ambient pressure

Abstract Thermodynamic properties of ionic liquid, 1-ethyl-3-methylimidazolium hydrogen sulfate ([Emim][HSO4]) in lithium chloride (LiCl) aqueous solutions have been investigated. Osmotic and activity coefficients of the ternary system ([Emim][HSO4] + LiCl + H2O) and their corresponding binary mixtures at T = 298.15 K are evaluated using isopiestic method. Using these data, the vapor pressures for these systems are determined. For binary systems, the Pitzer, Pitzer-Archer and modified-Pitzer models are satisfactorily correlated to the osmotic coefficients data. The Scatchard neutral-electrolyte model is fitted to the osmotic coefficients for ternary systems and corresponding mean activity coefficients for the binary and ternary systems are appraised. The densities of the ternary system ([Emim][HSO4] + LiCl + H2O) are measured at T = (293.15–313.15) K using a vibrating U-tube densimeter. Based on experimental density data, the apparent molar volumes, Vφ, are computed. The equation that reported in Redlich-Meyer article was used to correlate the Vφ values and apparent molar volumes at infinite dilution, Vφ0, are also calculated. Our results showed a negative transfer volume of [Emim][HSO4] from water to the aqueous (LiCl) solution which decreases by enhancing the (LiCl) mass fraction and temperature. The solute–solvent interactions and structure making or breaking ability of 1-ethyl-3-methylimidazolium hydrogen sulfate have been discussed in details.

[1]  S. K. Chaudhari,et al.  Thermodynamic Properties of Aqueous Solutions of Lithium Chloride , 2002 .

[2]  Felix Franks,et al.  Water:A Comprehensive Treatise , 1972 .

[3]  W. F. Stoecker,et al.  Refrigeration and air conditioning , 1958 .

[4]  D. G. Archer.  Thermodynamic Properties of the NaBr+H2O System , 1991 .

[5]  Mohammed Taghi Zafarani-Moattar,et al.  The study of vapor–liquid equilibria of 1-ethyl-3-methyl imidazolium chloride and 1-butyl-3-methyl imidazolium chloride in lithium bromide aqueous solutions and their corresponding binary systems at 298.15K. , 2013 .

[6]  W. Hamer,et al.  Osmotic Coefficients and Mean Activity Coefficients of Uni‐univalent Electrolytes in Water at 25°C , 1972 .

[7]  O. Redlich,et al.  The Molal Volumes of Electrolytes , 1964 .

[8]  Andrei G. Fedorov,et al.  Thermodynamic analysis of an absorption refrigeration system with ionic-liquid/refrigerant mixture as a working fluid , 2012 .

[9]  Zongchang Zhao,et al.  Thermodynamic properties of a new working pair: 1-Ethyl-3-methylimidazolium ethylsulfate and water , 2010 .

[10]  L. Hepler.  Thermal expansion and structure in water and aqueous solutions , 1969 .

[11]  E. Clarke,et al.  Evaluation of the Thermodynamic Functions for Aqueous Sodium Chloride from Equilibrium and Calorimetric Measurements below 154 °C , 1985 .

[12]  Xiaoping Yu,et al.  Solubilities, Densities, and Refractive Indices in the Salt-Water Ternary System (LiCl + LiBO2 + H2O) at T = 288.15 K and 298.15 K and p = 0.1 MPa , 2015 .

[13]  Wolfgang Wagner,et al.  International Equations for the Saturation Properties of Ordinary Water Substance , 1987 .

[14]  Dapeng Hu,et al.  Performance simulation of the absorption chiller using water and ionic liquid 1-ethyl-3-methylimidazolium dimethylphosphate as the working pair , 2011 .

[15]  Ernesto Vercher,et al.  Apparent molar volumes of lithium nitrate in 1-propanol + water in the temperature range from 288.15 to 318.15 K , 2002 .

[16]  Li Jing,et al.  Vapor Pressure Measurement of the Ternary Systems H2O + LiBr + [Dmim]Cl, H2O + LiBr + [Dmim]BF4, H2O + LiCl + [Dmim]Cl, and H2O + LiCl + [Dmim]BF4 , 2011 .

[17]  H. Rafiee,et al.  Study of Apparent Molar Volumes for Ionic Liquid, 1-Ethyl-3-methyl Imidazolium Chloride in Aqueous Lithium Nitrate, Lithium Bromide, and Lithium Chloride Solutions at Temperatures (298.15 to 318.15) K , 2015 .

[18]  H. Cabezas,et al.  An improved isopiestic method to determine activities in multicomponent mixtures , 1990 .

[19]  T. Uemura,et al.  Vapor Pressures of the Ethylamine + Water + Lithium Bromide System and Ethylamine + Water + Lithium Nitrate System , 1998 .

[20]  D. G. Archer,et al.  The Dielectric Constant of Water and Debye‐Hückel Limiting Law Slopes , 1990 .

[21]  G. Sadowski,et al.  Measuring and modeling aqueous electrolyte/amino-acid solutions with ePC-SAFT , 2014 .

[22]  G. Scatchard.  OSMOTIC COEFFICIENTS AND ACTIVITY COEFFICIENTS IN MIXED ELECTROLYTE SOLUTIONS , 1961 .

[23]  K. R. Seddon,et al.  Ionic liquids: a taste of the future. , 2003, Nature materials.

[24]  J. Rodríguez,et al.  Thermodynamic evaluation of new absorbent mixtures of lithium bromide and organic salts for absorption refrigeration machines , 2006 .

[25]  Donald G. Miller.  Activity Coefficient Derivatives of Ternary Systems Based on Scatchard’s Neutral Electrolyte Description , 2007 .

[26]  D. Zheng,et al.  Vapor Pressure Measurement for the Water + 1,3-Dimethylimidazolium Chloride System and 2,2,2-Trifluoroethanol + 1-Ethyl-3-methylimidazolium Tetrafluoroborate System , 2010 .

[27]  Yoshiaki Takahashi,et al.  Abnormal viscosity increment observed for an ionic liquid by dissolving lithium chloride. , 2008, Journal of Physical Chemistry B.

[28]  Felix Ziegler,et al.  Recent developments and future prospects of sorption heat pump systems , 1999 .

[29]  Reinhard Radermacher,et al.  Absorption Chillers and Heat Pumps , 1996 .

[30]  G. Kell.  Density, thermal expansivity, and compressibility of liquid water from 0.deg. to 150.deg.. Correlations and tables for atmospheric pressure and saturation reviewed and expressed on 1968 temperature scale , 1975 .

[31]  M. S. Ansari,et al.  Density, Viscosity, and Electrical Conductivity Measurements on the Ternary System H2O + C2H5OH + LiCl over the Entire Ranges of Solvent Composition and LiCl Solubility from (−5 to +50) °C , 2008 .

[32]  K. Pitzer,et al.  Thermodynamics of electrolytes. II. Activity and osmotic coefficients for strong electrolytes with one or both ions univalent , 1973 .

[33]  R. Bhat,et al.  Thermodynamic studies of transfer of some amino acids and peptides from water to aqueous glucose and sucrose solutions at 298.15 K , 1988 .

[34]  Robin D. Rogers,et al.  Ionic Liquids--Solvents of the Future? , 2003, Science.

[35]  K. B. Belibagli,et al.  Viscosities and apparent molar volumes of some amino acids in water and in 6M guanidine hydrochloride at 25°C , 1990 .

[36]  H. Rafiee,et al.  The study of volumetric, acoustic and transport properties of ionic liquid, 1-butyl-3-methyl imidazolium chloride [Bmim][Cl] in aqueous lithium bromide solutions at T = 298.15–318.15 K , 2014 .

[37]  H. Gibbard,et al.  Liquid-vapor equilibrium of aqueous lithium chloride, from 25 to 100.deg. and from 1.0 to 18.5 molal, and related properties , 1973 .

[38]  N. Aggarwal,et al.  Studies on the Interactions of Saccharides and Methyl Glycosides with Lithium Chloride in Aqueous Solutions at (288.15 to 318.15) K , 2014 .

[39]  G. Iglesias-Silva,et al.  Osmotic and Activity Coefficients Using a Modified Pitzer Equation for Strong Electrolytes 1:1 and 1:2 at 298.15 K , 2002 .

[40]  Huen Lee,et al.  Vapor pressures of the 1-butyl-3-methylimidazolium bromide + water, 1-butyl-3-methylimidazolium tetrafluoroborate + water, and 1-(2-hydroxyethyl)-3-methylimidazolium tetrafluoroborate + water systems , 2004 .

[41]  J. Gmehling,et al.  Experimental determination and correlation of liquid density data of electrolyte mixtures containing water or methanol , 2003 .

[42]  A. Ertas,et al.  Properties of a new liquid desiccant solution—Lithium chloride and calcium chloride mixture , 1992 .