Item | Quality Standards | |||
Characters | White or almost white,crystalline powder, colourless crystals or granules. Odorless, has a strongly acid taste. Very soluble in water,freely soluble in ethanol. | |||
Identification | Pass test | |||
Appearance of solution | Pass test | |||
Assay | 99.5%-100.5% | |||
Water | ≤ 0.5% | |||
Readily Carbonisable Substances | Pass test | |||
Sulphate Ash (Residue on Ignition) | ≤ 0.05% | |||
Sulphate | ≤ 150 mg/kg | |||
Oxalate | ≤ 100 mg/kg | |||
Lead | ≤ 0.5 mg/kg | |||
Arsenic | ≤ 1 mg/kg | |||
Mercury | ≤ 1 mg/kg | |||
Aluminium | ≤ 0.2 mg/kg | |||
Heavy Metals (as Pb) | ≤10 mg/kg | |||
Bacteria Endotoxin | <0.5 IU/mg |