Product Description

ITEM STANDARD

Appearance White powder or granular

Assay (on dried basis) 99.0-100.5%

pH (10% Solution) 6.0- 9.0

Loss on drying (155℃, 4h) =< 11.0%

Water insoluble matter =< 0.3%

Formic acid, formates and other oxidizablesubstances (as formic acid) =< 0.1%

Arsenic (As) =< 3 mg/kg

Lead (Pb) =< 5 mg/kg

Mercury (Hg) =< 1 mg/kg

Heavy metals =< 10 mg/kg

Chlorides (Cl) =< 0.05%

Sulfate (SO4) =< 0.06%

Nitrate (NO3) Pass test

Organic volatile impurities Pass test

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