[ Weight]: 25kg/bag. [Properties]: Ferrous sulfate is blue green monoclinic crystal or grain, used in pesticide, pigment, medicine, or reagent of chromatographic analysis [Quality Index]:
Item
Value
Premium grade
First grade
Second grade
Ferrous sulfate (FeSO4.7H2O) ,%≥
97.0
94.0
90.0
TiO2 , %≤
0.5
0.5
0.75
mWater insoluble matter, %≤
0.2
0.5
0.75
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