The chemical formula of Iron III oxide is Fe2O3. It is actually obtained from a mineral ore identified as hematite. It is mined then processed to acquire iron oxide for extracting the metal. Iron is also known as Ferrum in Latin. The valency of the metal is two and three. https://sphericalmolybdenumpowder37147.getblogs.net/71262281/not-known-factual-statements-about-stainless-steel-cladding