ITEM	STANDARD
Appearance	White crystalline powder
Purity (on dry base)%	98.0-104.0
PH value(0.1%water liquor)	9.5-10.5
Sulfate(ppm)	=<300
Chlorides(ppm)	=<350
Loss on drying %	=<0.50
Organic volatile impurities	Meets BP2000/usp24 STANDARD
Completeness of solution	Meets Bp2000/usp24 STANDARD
Heavy metals (Pb)ppm	=<10.0
Apprearance of solution	Clear and transparent
ITEM	STANDARD
Appearance	White crystalline powder
Purity (on dry base)%	99-100.5
Melting point °C	69-72
Sulphated ash %	=<0.05
Acidity (mlNaOH0.1M)	=<0.1
Loss on drying %	=<0.5
Residue %	=<0.10
Arsenic (ppm)	=<1.0
Heavy metals (Pb)ppm	=<10
Mercury (mg/kg)	<1
lead (mg/kg)	<5
Clarity and color of solution	Clear and transparent

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