Density, excess and limiting properties of (water and deep eutectic solvent) systems at temperatures from 293.15 K to 343.15 K
| Autor: | Suriati Sufian, Gulam Murshid, Hosein Ghaedi, Muhammad Ayoub, Sintayehu Mekuria Hailegiorgis, Azmi Mohd Shariff, Saleem Nawaz Khan |
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| Rok vydání: | 2017 |
| Předmět: |
Molar
Aqueous solution Chemistry Thermodynamics Partial molar property 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics Atomic and Molecular Physics and Optics Apparent molar property Thermal expansion Electronic Optical and Magnetic Materials Deep eutectic solvent chemistry.chemical_compound Molar volume 020401 chemical engineering Materials Chemistry Isobaric process 0204 chemical engineering Physical and Theoretical Chemistry 0210 nano-technology Spectroscopy |
| Zdroj: | Journal of Molecular Liquids. 248:378-390 |
| ISSN: | 0167-7322 |
| DOI: | 10.1016/j.molliq.2017.10.074 |
| Popis: | Deep eutectic solvents (DESs) are derived from two or more salts as the hydrogen bond acceptors (HBAs) and hydrogen bond donors (HBDs). In this work, DES namely allyltriphenyl phosphonium bromide-diethylene glycol (ATPPB-DEG) was prepared by using three molar ratios of 1:4, 1:10 and 1:16 salt to HBD. The volumetric properties of aqueous DESs, such as density, molar volume, isobaric thermal expansion, apparent molar volume and apparent molar expansibility were reported at several temperatures from 293.15 to 343.15 K. A mathematical equation, so-called Jouyban–Acree model (JAM), was used to correlate the experimental density and molar volume data of aqueous solution of DESs with respect to the concentration and temperature. The results disclosed that this model is an accurate and reliable model for the prediction of aqueous DES properties. The excess properties, such as excess molar volume and excess isobaric thermal expansion were reported and fitted to two different equations. In order to calculate the limiting apparent molar volume values, the apparent molar volume values were fitted into a Redlich–Mayer equation. By applying the Hepler equation, it was found that DESs with molar ratios of 1:4 and 1:10 are as structure-maker solutes, while the DES 1:16 is a structure-breaking solute in aqueous solutions at different temperatures. |
| Databáze: | OpenAIRE |
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