Products Description
It is widely used as a black pigment and serves as a catalyst in the Haber process and water–gas shift reaction. It acts as a contrast agent in MRI scanning. It also functions as a pigment in maleic-anhydride.html">magnetic materials, polishing agents, cosmetics, pharmaceutical formulations, polymers, rubber, fillers, construction materials, household appliances, and magnetic inks.
Chemical Properties
| Item | Value |
| 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 | odorless at 100.00% |
| 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/nm b/nm c/nm α/o β/o γ/o V/nm3 0.83941 0.83941 0.83941 90 90 90 0.5915 |
| Stability: | Stable. Incompatible with strong acids, chloroformates, peroxides. |
| Cosmetics Ingredients Functions | COLORANT |
| 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
| Item | Value |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 26 |
| RIDADR | 3 |
| WGK Germany | - |
| TSCA | Yes |
| HS Code | 28211000 |
Product Application
Iron(II,III) oxide (Fe3O4) can be applied as a heterogeneous catalyst for Fenton‑type oxidation of rhodamine B. It can be used as an anode material in lithium‑ion batteries. It is also used to catalyze the oxygen reduction reaction (ORR) in anion exchange membrane fuel cells.
Supply & Delivery
Fast delivery time
Inventory: 2-3 working days
New production: 7-10 working days
