Triiron tetraoxide CAS#1317-61-9
Black cubic crystal or amorphous powder; refractive index 2.42; density 5.17 g/cm3; Moh’s hardness 6.0; melts at 1,597°C; insoluble in water, soluble in acids.
Triiron tetroxide occurs in nature as the mineral magnetite, the magnetic oxide of iron. This mineral along with hematite is used as the starting material for producing iron, steel and other ferro-alloys.
Triiron tetroxide occurs in nature as the mineral magnetite, the magnetic oxide of iron. This mineral along with hematite is used as the starting material for producing iron, steel and other ferro-alloys.
Application of Triiron tetraoxide
Triiron tetraoxide can be used as pigment in paints, linoleum, ceramic glazes; in coloring glass; as a polishing compound; in the textile industry; in cathodes; as catalyst.
Mostly it is used as a black- pigment -catalyst in the Haber process and in the water gas shift reaction. It is used as a contrast-agent in MRI scanning, whereas it is used as a pigment in magnetic applications, polishing compounds, cosmetics, medicines, polymer, rubber, filler, building, construction, appliances, and magnetic inks.
Iron(II,III) oxide (Fe3O4) can be used as a heterogeneous catalyst for the Fenton type oxidation of rhodamine B. It can be used as an anode material for the fabrication of lithium-ion batteries. Fe3O4 can also be utilized in the catalysis of the oxygen reduction reaction (ORR) in the anion exchange membrane fuel cell.
| Triiron tetraoxide Chemical Properties |
| Melting point | 1538 °C(lit.) |
| bulk density | 0.84g/mL |
| density | 4.8-5.1 g/mL at 25 °C(lit.) |
| refractive index | 3.0 |
| Fp | 7 °C |
| storage temp. | -20°C |
| solubility | Aqueous Acid (Slightly) |
| form | powder |
| color | black |
| Specific Gravity | 5.2 |
| Odor | at 100.00%. odorless |
| Water Solubility | Insoluble in water and organic solvents. Soluble in concentrated mineral acids. |
| Crystal Structure | Inverse spinel type |
| crystal system | Cube |
| Merck | 14,4040 |
| Space group | Fd3m |
| Lattice constant | a/nmb/nmc/nmα/oβ/oγ/oV/nm30.839410.839410.839419090900.5915 |
| Stability: | Stable. Incompatible with strong acids, chloroformates, peroxides. |
| Major Application | battery manufacturing |
| Cosmetics Ingredients Functions | COLORANT |
| InChI | 1S/3Fe.4O |
| InChIKey | SZVJSHCCFOBDDC-UHFFFAOYSA-N |
| SMILES | O=[Fe].O=[Fe]O[Fe]=O |
| CAS DataBase Reference | 1317-61-9(CAS DataBase Reference) |
| NIST Chemistry Reference | Iron(ii,iii) oxide(1317-61-9) |
| EPA Substance Registry System | Iron oxide (Fe3O4) (1317-61-9) |
| Safety Information |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 26 |
| RIDADR | 3 |
| WGK Germany | - |
| TSCA | TSCA listed |
| HS Code | 28211000 |
| Storage Class | 11 - Combustible Solids |
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