The Chemical formula of Iron III oxide is Fe2O3. It can be obtained from a mineral ore named hematite. It is 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 https://nanodiamond-powder04703.wssblogs.com/38727819/inconel-718-fundamentals-explained