1 | Appearance | A viscous, clear, colourless, hygroscopic liquid. | A viscous, clear, colourless, hygroscopic liquid. |
2 | Solubility | Passes | Miscible with water and with ethanol (96%). |
3 | Identification A ( By Relative density, 20°C) | 1.036 | 1.035 - 1.040 |
4 | Identification B (By Refractive index, 20±0.5°C) | 1.431 | 1.431 - 1.433 |
5 | Identification C (By Boiling Point) | 184°C | 184° - 189°C |
6 | Identification D (By melting point) | 122°C | Crystals should melt between 121 °C to 128 °C. |
7 | Relative density, 20°C | 1.036 | 1.035 - 1.040 |
8 | Refractive index (20°C ± 0.5°C) | 1.431 | 1.431 - 1.433 |
9 | Acidity | Passes | Not more than 0.05 mL of 0.1 M sodium hydroxide should require to change the color of the indicator to blue. |
10 | Oxidising substances | Passes | Not more than 0.2 mL of 0.05 M sodium thiosulfate should require. |
11 | Reducing substances | Passes | The solution does not change its appearance. |
12 | Water | 0.069% | NMT 0.2% |
13 | Sulphated ash | 0.004% | NMT 0.01% (Residue weight should not be more than 5 mg |