Excess Volume of Binary Mixtures of Water (Methanol or Ethanol) with an Ionic Liquid [EEIM][DEP] or [BEIM][DEP] at 1 atm and (293.15 to 333.15) K

Authors

  • Hong-Yan Song Beijing University of Chemical Technology
  • Yin-Hui Gong Beijing University of Chemical Technology
  • Xue-Mei Jiang Beijing University of Chemical Technology
  • Chun-Xi Lib Beijing University of Chemical Technology

DOI:

https://doi.org/10.6000/1929-5030.2014.03.03.2

Keywords:

Density, excess volume, ionic liquid, water, methanol, ethanol.

Abstract

Densities were measured for the binary mixtures of water (methanol or ethanol) and an ionic liquid (IL) 1,3-diethylimidazolium diethylphosphate [EEIM][DEP] or 1-n-butyl-3-ethylimidazolium diethylphosphate [BEIM][DEP] at 1 atm and (293.15 to 333.15) K using a vibrating-tube densimeter. The molecular volume, standard entropy, and lattice energy of the two ILs were estimated with the Glasser theory. The excess volumes are negative for all binary mixtures studied in the whole composition range, and reach to the maximum at the mole fraction of IL being around 0.3. Besides, they decrease with increasing temperature for the aqueous solution of ILs, whilst a reverse trend is found for the IL solutions of methanol or ethanol at any concentration. The excess molar volumes were correlated successfully by a five-parameter polynomial equation as a function of temperature and mole fraction of IL with average absolute relative deviation (ARD) of density within 0.02%.

Author Biographies

Hong-Yan Song, Beijing University of Chemical Technology

Faculty of Science

Yin-Hui Gong, Beijing University of Chemical Technology

Chemical Engineering

Xue-Mei Jiang, Beijing University of Chemical Technology

Chemical Engineering

Chun-Xi Lib, Beijing University of Chemical Technology

Chemical Engineering

References


[1] Gong Y, Lu Y, Meng H, Li C. Density measurement for the binary mixtures of ionic liquid 1-ethyl-3-methylimidazolium diethylphosphate and water(methanol or ethanol) at 1 atm and (293.15 to 333.15) K. Journal of Applied Solution Chemistry and Modeling 2013; 2: 234-9.
[2] Wang J, Li Z, Li C, Wang Z. Density prediction of ionic liquids using a group contribution equation of state. Ind Eng Chem Res 2010; 49: 4420-5. http://dx.doi.org/10.1021/ie901590h
[3] Shen C, Li C, Li X, Lu Y. Muhammad Y. Estimation of densities of ionic liquids using Patel-Teja equation of state and critical parameters determined from group contribution method. Chem Eng Sci 2011; 66: 2690-8. http://dx.doi.org/10.1016/j.ces.2011.03.027
[4] Zhou Y, Robertson AJ, Hillhouse JH, Baumann D. Phosphonium and imidazolium salts and methods of their preparation. WO 2004/016631 Al, 26 Feb., 2004.
[5] Liu G, Ma L, Liu J. Physical property for chemistry and chemical engineering, 1st ed., Chemical Industry Press, Beijing, 2002.
[6] Wang J, Zhao F, Liu R, Hu Y. Thermophysical properties of 1-methyl-3-methylimidazolium dimethylphosphate and 1- ethyl-3-methylimidazolium diethylphosphate. J Chem Thermodyn 2011; 43: 47-50. http://dx.doi.org/10.1016/j.jct.2010.08.002
[7] Glasser L. Lattice and phase transition thermodynamics of ionic liquids. Thermochim Acta 2004; 421: 87-93. http://dx.doi.org/10.1016/j.tca.2004.03.015
[8] Tong J, Hong M, Guan W, Li JB, Yang JZ. Studies on the thermodynamic properties of new ionic liquids: 1-Methyl-3- pentylimidazolium salts containing metal of group III. J Chem Thermodyn 2006; 38: 1416-21. http://dx.doi.org/10.1016/j.jct.2006.01.017
[9] Huang ZQ. The Introduction of Electrolyte Solution Theory, divided ed., Science Press, Beijing, 1983, p. 98.
[10] Bhuiyan MMH, Uddin MH. Excess molar volumes and excess viscosities for mixtures of N, N-dimethylformamide with methanol, ethanol and 2-propanol at different temperatures. Journal of Molecular Liquids 2008; 138: 139-46. http://dx.doi.org/10.1016/j.molliq.2007.07.006
[11] Hofman T, Goldon A, Nevines A, Letcher TM. Densities, excess volumes, isobaric expansibity, and isothermal compressibility of the (1-ethyl-3-methylimidazolium ethylsulfate + methanol) system at temperatures (283.15 to 333.15) K and pressures from (0.1 to 35) MPa. J Chem Thermodyn 2008; 40: 580-91.

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Published

2014-09-18

How to Cite

Song, H.-Y., Gong, Y.-H., Jiang, X.-M., & Lib, C.-X. (2014). Excess Volume of Binary Mixtures of Water (Methanol or Ethanol) with an Ionic Liquid [EEIM][DEP] or [BEIM][DEP] at 1 atm and (293.15 to 333.15) K. Journal of Applied Solution Chemistry and Modeling, 3(3), 152–158. https://doi.org/10.6000/1929-5030.2014.03.03.2

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General Articles