20% ferrous iron
State your requirements for ferrous and ferric iron, appearance and the intended formulation. Confirm oxidation-state limits in the approved grade specification.
Discuss this grade| Parameter | Offered target |
|---|---|
| Iron(II) content | ≥20.0% (dry basis) |
| Form | Dark brown or grayish green powder |
| Iron(III) | ≤2.0% on dry basis |
| Loss on drying | ≤7.0% |
| pH | 6.0–9.0 |
| Particle size | 90% passing 60 mesh |