Table 2.
Physico-chemical properties of glycerol.
| Properties | Values | |
|---|---|---|
| Chemical formula | CH2OH–CHOH–CH2OH | |
| Formula weight | 92.09 | |
| Form and color | Colorless and liquid | |
| Specific gravity | 1.26050/4 | |
| Melting point | 17.9°C | |
| Boiling point | 290°C | |
| Solubility in 100 parts | ||
| Water | Infinitely | |
| Alcohol | Infinitely | |
| Ether | Insoluble | |
| Vapor pressure in 760 mmHg | 290°C | |
| Heat of fusion at 18.07°C | 47.49 cal/g | |
| Viscosity liquid glycerol | ||
| 100% | 10 cP | |
| 50% | 25 cP | |
| Diffusivity in | (DL × 105 sq.cm/s) | |
| i-Amyl alcohol | 0.12 | |
| Ethanol | 0.56 | |
| Water | 0.94 | |
| Specific heat glycerol in aqueous solution (mol%) | 15°C (cal/g°C) | 30°C(cal/g°C) |
| 2.12 | 0.961 | 0.960 |
| 4.66 | 0.929 | 0.924 |
| 11.5 | 0.851 | 0.841 |
| 22.7 | 0.765 | 0.758 |
| 43.9 | 0.670 | 0.672 |
| 100 | 0.555 | 0.576 |