Glycerol-based deep eutectic solvents: Physical properties

AlOmar, M.K. and Hayyan, M. and AlSaadi, M.A. and Akib, S. and Hayyan, A. and Hashim, M.A. (2016) Glycerol-based deep eutectic solvents: Physical properties. Journal of Molecular Liquids, 215. pp. 98-103. ISSN 0167-7322, DOI

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Deep eutectic solvents (DESs) have been used in many industrial applications. DES is a mixture of a salt and a hydrogen bond donor (HBD). In this study, 70 DESs were synthesized successfully based on glycerol (Gly) as the HBD with different phosphonium and ammonium salts, namely methyl triphenyl phosphonium bromide (MTPB), benzyl triphenyl phosphonium chloride (BTPC), allyl triphenyl phosphonium bromide (ATPB), choline chloride (ChCl), N,N-diethylethanolammonium chloride (DAC), and tetra-n-butylammonium bromide (TBAB). The DESs were prepared using different molar ratios of the HBD to the salts. The freezing point of each DES was determined using Differential Scanning Calorimetry (DSC). The physical properties of these DESs, including density, viscosity, conductivity, and surface tension, were investigated as functions of temperature. In addition, the functional groups were analyzed utilizing Fourier transform infrared (FTIR) spectroscopy. It is worth noting that these systems have a wide variety of physical properties, which implies that these DESs would be suitable for diverse applications.

Item Type: Article
Funders: University of Malaya HIR-MOHE (H-16001-00-D000061)
Uncontrolled Keywords: Deep eutectic solvent; Choline chloride; Ionic liquid; Methyl triphenyl phosphonium bromide; N,N-diethyl ethanol ammonium chloride
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TP Chemical technology
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 14 Nov 2017 06:28
Last Modified: 14 Nov 2017 06:28

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