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Tytuł: A Fluctuation Equation of State for Prediction of High-Pressure Densities of Ionic Liquids
Autor: Chorążewski, Mirosław
Postnikov, Eugene B.
Jasiok, Bernadeta
Nedyalkov, Yuriy V.
Jacquemin, Johan
Słowa kluczowe: Ionic liquids; Fluctuation; High-Pressure Densities
Data wydania: 2017
Źródło: Scientific Reports, 2017, Vol. 7, iss. 1, art. no. 5563
Abstrakt: 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.
DOI: 10.1038/s41598-017-06225-9
ISSN: 2045-2322
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