Table 3.
The content and dielectric constants of sorbitol-based solvents.
| No. | Content, % wt. * | Density, g/mL * | Dielectric Constant (ε) | ||||
|---|---|---|---|---|---|---|---|
| Sorbitol | Ethanol | Water | Malic Acid | Glycerin | |||
| 1 | 2.00 ± 0.01 | 91.0 ± 0.5 | 7.00 ± 0.04 | 0 | 0 | 0.815 ± 0.006 | 26 |
| 2 | 14.0 ± 0.1 | 66.0 ± 0.3 | 20.0 ± 0.1 | 0 | 0 | 0.900 ± 0.006 | 34 |
| 3 | 34.0 ± 0.2 | 42.0 ± 0.2 | 24.0 ± 0.1 | 0 | 0 | 1.018 ± 0.006 | 41 |
| 4 | 51.0 ± 0.3 | 22.0 ± 0.1 | 27.0 ± 0.1 | 0 | 0 | 1.130 ± 0.006 | 50 |
| 5 | 72.0 ± 0.4 | 0 | 28.0 ± 0.1 | 0 | 0 | 1.298 ± 0.006 | 61 |
| 6 ** | 49.0 ± 0.3 | 0 | 15.0 ± 0.1 | 36.0 ± 0.2 | 0 | 1.404 ± 0.006 | 33 ± 2 *** |
| 7 ** | 42.7 ± 0.3 | 0 | 4.20 ± 0.03 | 31.5 ± 0.2 | 21.6 ± 0.1 | 1.381 ± 0.006 | 41 ± 2 *** |
* Note. The mean value of the content and density (X ± ΔX) for the solutions obtained were calculated at repeat counts n = 3 and significance level P = 0.95. ** The content of sorbitol-based natural deep eutectic solvent (NADES) (row 6) is sorbitol:malic acid:water (1:1:3 in mole ratio), a modified solvent based on NADES (row 7) is sorbitol:malic acid:water:glycerin (1:1:1:1 in mole ratio). *** The dielectric constant values for sorbitol-based NADES (row 6) and modified solvent based on NADES (row 7) were determined experimentally (see supplement materials, Figures S1–S4).