ITEM | Unit | 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.
|
Assay | % | 99.5～100.5 |
Water: Max | % | 0.5 |
Sulphated Ash (Residue on Ignition): Max | % | 0.05 |
Sulfate : Max | mg/kg | 150 |
Oxalate : Max | mg/kg | 100 |
Lead : Max | mg/kg | 0.5 |
Arsenic : Max | mg/kg | 1 |
Mercury : Max | mg/kg | 1 |
Aluminum ：Max | mg/kg | 0.2 |
Heavy Metals (as Pb) :Max | mg/kg | 10 |
Bacterial endotoxins : Max | IU/mg | 0.5 |
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