The chemical formula of Iron III oxide is Fe2O3. It's obtained from the mineral ore termed hematite. It is actually mined then processed to acquire iron oxide for extracting the metal. Iron is also called Ferrum in Latin. The valency of this metal is 2 and 3. When it brings https://3dprintingservice48147.weblogco.com/39060740/rumored-buzz-on-niobium-nitride