Physical state at 20 °C | Solid | Colour | White |
Melting point/ Freezing point [°C] | 194 – 198 °C | Solubility in water [% weight] | Soluble in hot water |
Appearance | White to beige or pink powder, crystals or chunks |
Assay (argentometric; on dried basis) | Min 98.0% |
Water (by KF) | Max 5.0% |
Infrared spectrum | Authentic |
Loss on drying (at 80°C) | Max 5.0% (1 g, 4 hrs) |
Solubility | Passes test |
Sensitivity test (to sulfanilamide) | Passes test |