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Solubility in water Colorless & clear (c=0.4)
Specific rotation [α]D20 +25.8°~+27.0°(c= 2, 1M-NaOH)
Loss on drying Not more than 0.3%
Residue on ignition (as sulfate) Not more than 0.1%
Chloride (Cl) Not more than 0.02%
Sulfate (SO4) Not more than 0.03%
Heavy metals (as Pb) Not more than 10ppm
Iron (Fe) Not more than 10ppm
Ammonium (NH4) Not more than 0.02%
Arsenic (As2O3) Not more than 1ppm
Assay 98.5%~101.0%



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