Iron (II,III) Oxide Synthetic


Iron(II,III) oxide is the chemical compound with formula Fe3O4. It is one of possible iron oxides. It is found in nature as the mineral magnetite. It contains both Fe2+ and Fe3+ ions and is sometimes formulated as FeO.Fe2O3. It is encountered in the laboratory as a black powder. It exhibits permanent magnetism and is ferrimagnetic, but is sometimes incorrectly described as ferromagnetic. Its most extensive use is as a black pigment which is synthesised rather than being extracted from the naturally occurring mineral as the particle size and shape can be varied by the method of production.

Minimum Assay: >97%
Molecular Formula: Fe3O4
Molecular Weight: 231.54
Melting Point: 1538 deg C
Refractive Index: 3.0

HS CODE: 28211010


Following the UK’s departure from the EU on 1 January 2021, all European shipments are sent on a DAP Basis (Delivered at Place).

This means that the buyer will be liable for import VAT at their prevailing national rate and for orders over 150€ (including carriage) import duties will become chargeable at your prevailing national rate.

The Duty is ascertained by your national customs authority based on the HS Code of each product. The HS Code is shown in the “European Shipment” section of each product page.

Additional information

Weight N/A
Pack Size

500gm, 1kg, 2.5kg, 5kg