1 | Description | Free-flowing, white crystalline powder, having a characteristic odor. | Free-flowing, white, crystalline powder, having a characteristic odor. |
2 | Solubility | Complies | Soluble in alcohol and in ether; slightly soluble in water. |
3 | Identification A (By IR) | Complies | IR spectra of the sample should be concomitant with IR spectra of the standard |
4 | Identification B (by UV absorbance test) | Complies | Absorbance maximum should be at 254 ± 2 |
5 | Assay (Anhydrous basis) | 99.8% | 98.0% - 102.0% |
6 | Limit of Aldehydes | Less than 0.15% | NMT 0.15%, as acetaldehyde. |
7 | Residue on ignition | 0.10% | NMT 0.2% |
8 | Melting range or Temperature | 133.6°C-134.0°C | 132°C-135°C |
9 | Water | 0.11% | NMT 0.5% |