Item
Quality Standards
Characters
White or almost white, crystalline powder or granular
Identification
Pass test
Appearance of solution
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Assay
99.0%~100.5%
Water
11.0%~13.0%
Readily carbonisable substances
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Acidity or alkalinity
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PH (5%w/v)
7.5~9.0
Sulfate
â?¤150 mg/kg
Oxalate
â?¤100 mg/kg
Chloride
â?¤50 mg/kg
Lead
â?¤1 mg/kg
Arsenic
â?¤1 mg/kg
Mercury
â?¤1 mg/kg
Heavy metal (as Pb)
â?¤10 mg/kg
Tartrate
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Pyrogen
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Bacteria Endotoxins
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