Table 1.
Compounds and elements on surface of the iron filings based on XRD and SEM-EDS tests
| Chemical name or formula | Mole Quantity (%) |
|---|---|
| Elements identified with SEM-EDS | |
| Oxygen (O) | 61.97±0.28 |
| Iron (Fe) | 26.72±0.10 |
| Carbon (C) | 9.29±0.14 |
| Silicon (Si) | 1.06±0.02 |
| Manganese (Mn) | 0.37±0.04 |
| Copper (Cu) | 0.24±0.03 |
| Sulfur (S) | 0.12±0.01 |
| Aluminum (Al) | 0.09±0.01 |
| Chromium (Cr) | 0.09±0.01 |
| Calcium (Ca) | 0.05±0.01 |
| Compounds identified with XRD | |
| Iron diiron(III) oxide, Magnetite (Fe3O4) | 50 |
| Iron titanium oxide (Fe1.696Ti0.228O3) | 26 |
| Magnesium diiron(III) oxide (MgFe2O4) | 17 |
| Iron manganese(IV) oxide (FeMnO3) | 7 |