Appearance White crystalline powder
Assay 97-103%min
Melting point 158-164℃
PH 4.8-5.5
Solubility Very soluble in water and in alcohol, freely soluble in methylene chloride
Clarity(acetone) Clear and colorless
Loss on drying 0.5% max
Sulphated ash 0.1% max
Ammonium 50ppm max