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Molar surface Gibbs energy of the aqueous solution of ionic liquid [C4mim][OAc]

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Abstract

The values of density and surface tension for aqueous solution of ionic liquid(IL) 1-butyl-3-methylimidazolium acetate([C4mim][OAc]) with various molalities were measured in the range of 288.15—318.15 K at intervals of 5 K. On the basis of thermodynamics, a semi-empirical model-molar surface Gibbs energy model of the ionic liquid solution that could be used to predict the surface tension or molar volume of solutions was put forward. The predicted values of the surface tension for aqueous [C4mim][OAc] and the corresponding experimental ones were highly correlated and extremely similar. In terms of the concept of the molar Gibbs energy, a new Eötvös equation was obtained and each parameter of the new equation has a clear physical meaning.

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Authors and Affiliations

  1. College of Chemistry, Liaoning University, Shenyang, 110036, P. R. China

    Jing Tong, Xu Zheng, Jian Tong, Ye Qu, Lu Liu & Hui Li

Authors
  1. Jing Tong
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  2. Xu Zheng
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  3. Jian Tong
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  4. Ye Qu
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  5. Lu Liu
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  6. Hui Li
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Corresponding author

Correspondence to Jing Tong.

Additional information

Supported by the National Natural Science Foundation of China(Nos.21273003, 21173107), the Education Bureau of Liaoning Province, China(No.LJQ 2013001) and the Liaoning Baiqianwan Talents Program, China(No.2013921029).

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Tong, J., Zheng, X., Tong, J. et al. Molar surface Gibbs energy of the aqueous solution of ionic liquid [C4mim][OAc]. Chem. Res. Chin. Univ. 33, 828–832 (2017). https://doi.org/10.1007/s40242-017-6386-5

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  • DOI: https://doi.org/10.1007/s40242-017-6386-5

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