Ferrous sulfite
Molecular Formular: FeSO4
Molecular weight : 278. 01
Uses: pesticide and fertilizer; raw material of magnetie iron oxide, iron oxide of pigments, etc, astringent in medical and reagent in chromatogram analysis.
Ferrous sulfite heptahydrate
Molecular Formular: FeSO4·7H20
Executed Standard: GB10531-89
|
Target name |
Index | ||
|
Industry water | |||
|
Super grade |
First grade |
Aproved grade | |
|
Ferrous sulfite (FeSO4*7 H2O) ﹪ |
97. 0 |
94. 0 |
90. 0 |
|
Titanium Dioxide (TiO2) ﹪ |
0. 5 |
0. 5 |
0. 75 |
|
Insoluble matter in water﹪ |
0. 2 |
0. 5 |
0. 75 |
|
Free acid (H2SO4) ﹪ |
— |
— |
— |
|
Arsenic ﹪ |
— |
— |
— |
|
Heavy metal (Pb) ﹪ |
— |
— |
— |