Physical state at 20 °C | Solid | Odour | Odorless |
Melting point/ Freezing point [°C] | White crystalline | Solubility in water [% weight] | Soluble in water |
Colour | White crystalline |
Appearance | A white crystalline powder |
Assay (titration) | Min 99% |
UV transmittance (0.005 moles/lit): | |
at 200 nm | Min 70% |
at 220 nm | Min 90% |
at 250 nm | Min 98% |