|
Ferrous Sulfate 7 Hydrate AR [Iron (II) Sulfate]
| Mol. Formula |
FeSO4. 7H2O |
| Mol. weight |
278.02 |
| CASR No. |
7782-63-0 |
| Appearance |
Greenish-blue crystalline powder |
| Test solution (10%w/v solution in dist. water+ 1ml H2SO4) |
The solution shall be clear and pale greenish-blue |
| Assay |
99% min. |
| pH (5%w/v solution in dist. water) |
3.0 - 4.0 |
Maximum limits of impurities
|
| Chloride, as Cl |
0.0005% |
| Copper, as Cu |
0.001% |
| Calcium, as Ca |
0.005% |
| Ferric, as Fe+3 |
0.05% |
| Arsenic, as As |
0.00004% |
| Heavy Metals, as Pb |
0.002% |
| Magnesium, as Mg |
0.005% |
| Manganese, as Mn |
0.05% |
| Nitrogen, as N |
0.001% |
| Phosphate, as PO4 |
0.001% |
| Potassium, as K |
0.002% |
| Sodium, as Na |
0.02% |
| Zinc, as Zn |
0.01% |
|
