Journal
JOURNAL OF MOLECULAR LIQUIDS
Volume 296, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.molliq.2019.111830
Keywords
DES; Green solvent; Volumetric property; Specific volume; Molar volume; Physical property
Funding
- European Union [ERC-2016-CoG 725,034]
- Associate Laboratory for Green ChemistryLAQV - FCT/MCTES [UID/QUI/50006/2019]
- Shiraz University
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Deep eutectic solvents (DESs) mostly comply with the principles of green chemistry. Therefore, they are being widely investigated due to their great potential for a variety of applications in the industries. However, it is necessary to have accurate (thermo)-physical property information on any solvent before it can pave its way into the industries. Among such properties, density as a function of temperature is one of the most important. In this study, a simple, accurate and global correlation is proposed to estimate the densities of a large number of DESs of different natures. The proposed model is a function of the critical temperature, critical volume and acentric factor of the DES, as well as the temperature of the system. In this way, the model is capable of accurately predicting the densities of DESs without the need for any reference temperature density data, in contrast to most of the literature models that do require a reference data point. The average relative error for 149 DESs of different natures was estimated to be 3.12% by the proposed model, indicating its accuracy compared to previous models. (C) 2019 Elsevier B.V. All rights reserved.
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