产品描述

Appearance     White deliquescent crystalline powder
Assay (Dry Basis)     99.0-100.5%
pH (5% Solution)     7.5- 9.0
Loss on Drying (150℃, 2h)     =< 1.0%
Formic acid, formates and other oxidizable substances     =< 0.1%
Chlorides (Cl)     =< 0.05%
Sulphate (SO4)     =< 0.01%
Magnesium (Mg)     =< 0.01%
Iron (Fe)     =< 0.001%
Lead (Pb)     =< 5 mg/kg
Arsenic (As)     =< 3 mg/kg
Mercury (Hg)     =< 1 mg/kg
Heavy Metal (as Pb)     =< 10 mg/kg