Appearance (Colour)
White
Appearance (Form)
Crystalline powder/ Needles / Flakes
Solubility (Turbidity) 10% solution in methanol
Clear
Solubility (Colour) 10% solution in methanol
Colourless
Assay (by Neutralization)
min. 99.5%
Insoluble in methanol
max. 0.005%
Melting Point
122-123°C
Residue after ignition
max. 0.005%
Heavy Metals (Pb)
max. 0.0005%
Sulphur compunds
max. 0.002%
Chlorinated compounds (Cl)
max. 0.005%
Substances reducing Permanganate (O)
Passes test