A Fluctuation Equation of State for Prediction of High-Pressure Densities of Ionic Liquids

Miroslaw Chorazewski, Eugene B. Postnikov, Bernadeta Jasiok, Yuriy V. Nedyalkov, Johan Jacquemin

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9 Citations (Scopus)
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Abstract

During this work, we demonstrate, for the first time, that the volumetric properties of pure ionic liquids could be truly predicted as a function of temperature from 219 K to 473 K and pressure up to 300 MPa. This has been achieved by using only density and isothermal compressibility data at atmospheric pressure through the Fluctuation Theory-based Tait-like Equation of State (FT-EoS). The experimental density data of 80 different ionic liquids, described in the literature by several research groups as a function of temperature and pressure, was then used to provide comparisons. Excellent predictive capability of FT-EoS was observed with an overall relative absolute average deviation close to 0.14% for the 15,298 data points examined during this work.
Original languageEnglish
Article number5563
Number of pages9
JournalScientific Reports
Early online date17 Jul 2017
DOIs
Publication statusEarly online date - 17 Jul 2017

Keywords

  • Ionic liquids
  • High-Pressure Density
  • volumetric properties
  • Fluctuation Theory-based Tait-like Equation of State
  • Prediction

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    Chorazewski, M., Postnikov, E. B., Jasiok, B., Nedyalkov, Y. V., & Jacquemin, J. (2017). A Fluctuation Equation of State for Prediction of High-Pressure Densities of Ionic Liquids. Scientific Reports, [5563]. https://doi.org/10.1038/s41598-017-06225-9