Ferrous sulfate monohydrate
【Characters】Grayish white powder, soluble in water, slightly soluble in alcohol, corrosive.
| Test items | Reagent | High purity | Feed | Other |
| Assay(FeSO4•H2O) /% | ≥99.0 | ≥98.0 | ≥91.4 | Custom |
| Iron(as Fe2+) /% | - | - | ≥30.0 | |
| Ferric iron(as Fe3+) /% | ≤0.2 | |||
| Lead(Pb) /ppm | ≤20 | ≤2 | ≤15 | |
| Cadmium(Cd) /ppm | - | - | ≤3 | |
| Mercury(Hg) /ppm | - | ≤1 | - | |
| Arsenic(As) /ppm | ≤2 | ≤3 | ≤2 | |
| Acid-insoluble substance /% | ≤0.05 | ≤0.05 | - | |
| Fineness(180μm test sieve pass rate) /% | - | - | ≥95 | |
| Chloride(Cl) /% | ≤0.001 | - | - | |
| Total nitrogen(N) /% | ≤0.001 | - | - | |
| Phosphate(PO4) /% | ≤0.000 5 | - | - | |
| Arsenic(As) /% | ≤0.000 2 | - | - | |
| Manganese(Mn) /% | ≤0.05 | - | - | |
| Copper(Cu) /% | ≤0.002 | - | - | |
| Zinc(Zn) /% | ≤0.005 | - | - | |
| Lead(Pb) /% | ≤0.002 | - | - | |
【Use】Used as an analytical reagent; Ferrite raw material; Iron reinforcer and fruit and vegetable color agent; Adjust soil pH value; Manufacturing magnetic iron oxide, iron oxide red and iron blue; Inorganic pigment; Iron catalyst; Medicine used as local astringent and blood tonic; In feed processing as iron supplements, etc.