The Chemical formula of Iron III oxide is Fe2O3. It's obtained from a mineral ore termed hematite. It really is mined after which you can processed to acquire iron oxide for extracting the metal. Iron is also called Ferrum in Latin. The valency of the metal is two and 3. https://enderprinter26925.blogpixi.com/39128330/the-single-best-strategy-to-use-for-powder-3d-printing