1 | Appearance | Clear, colourless, slightly hygroscopic liquid. | Clear, colourless, slightly hygroscopic liquid. |
2 | Solubility | Complies | Miscible with water, with ethanol (96 per cent). |
3 | Boiling point | 165°C | ~165°C |
4 | Identification A ( By Relative density, 20°C) | 0.942 | 0.941 - 0.944 |
5 | Identification B (By Refractive index, 20±0.5°C) | 1.438 | 1.435 - 1.439 |
6 | Identification C (By IR) | Complies | IR spectra of the sample should be concomitant with IR spectra of the standard. |
7 | Identification D (By Chemical test) | Complies | A reddish-brown color develops, reaching a maximum intensity after about 5 minutes. |
8 | Appearance of solution | Complies | The solution is clear and not more intensely coloured than reference solution Y7 |
9 | Acidity | Complies | NMT 5.0ml of 0.02M potassium hydroxide is required to restore the initial bluish-green color. |
10 | Alkalinity | Complies | NMT 0.5ml of 0.02M hydrochloric acid is required to restore the initial yellow color. |
11 | Related substances (N,N-dimethylformamide) | Not detected | NMT 0.07% |
12 | Related substances (Any impurity) | 0.02% | NMT 0.1% |
13 | Related substances (Total impurity) | 0.03% | NMT 0.3% |
14 | Heavy metals | Less than 10 ppm | NMT 10 ppm |
15 | Non-volatile matter | 8 ppm | NMT 20 ppm |
16 | Water (By KF) | 0.045% | NMT 0.1% |
17 | Bacterial endotoxins | Less than 0.2 EU/mg | NMT 0.2 EU/mg |
18 | Total aerobic bacterial count | Less than 100 CFU/ml | NMT 100 CFU/ml |
19 | Total combined yeast and molds count | Less than 10 CFU/ml | NMT 10 CFU/ml |