Physical Properties
| Physical state at 20 °C
|
Solid
|
| Colour
|
White crystalline
|
| pH value
|
5.5 - 7.5
|
| Melting point/ Freezing point [°C]
|
300 °C
|
| Solubility in water [% weight]
|
Soluble in water
|
Specifications
Appearance A white crystalline powder Assay (acidimetric; on anhydrous basis) Min 99% at 200 nm Min 70% at 220 nm Min 90% at 250 nm Min 98% Identity (IR) Conforms Loss on drying (at 120°C) Max 2% pH (10% solution) 5.5 - 7.5 UV transmittance(0.005 mol/L; 1cm; water)