Iron Oxide Black 330 Color Index: Pigment Black 11 C.I. No.: 77499 CAS No.:12227-89-3 EINECS NO.:235-442-5 Molecular Formula: Fe3O4 Molecular Weight: 231.54 Iron Oxide Black 330 Properties Ferro ferric oxide, chemical formula Fe3O4. Commonly known as the iron oxide black, magnets, magnet, black iron, with the black crystal magnetic, so it is also called magnetic iron oxide. Redone Impex Iron Oxide Black 330 is a common iron oxide pigment used in developing building materials, paints, rubber, asphalt, sports racetracks, paper, plastic and others.
