产品描述

Appearance    White crystalline powder
Assay (dry Basis, %)    99.0-100.5
pH (1% Solution)    =< 8.6
Loss on Drying (%)    =< 0.20
Chlorides (Cl, %)    =< 0.50
Ammonia    Pass test
Insoluble substances    Pass test
Whiteness (%)    >= 85
Lead (Pb)    =< 2 mg/kg
Arsenic (As)    =< 1 mg/kg
Heavy Metal (as Pb)    =< 5 mg/kg