The Chemical formula of Iron III oxide is Fe2O3. It truly is acquired from a mineral ore termed hematite. It is actually mined after which you can processed to get iron oxide for extracting the metal. Iron is also called Ferrum in Latin. The valency of the metal is 2 https://cruzerbks.robhasawiki.com/11841810/the_single_best_strategy_to_use_for_powder_3d_printing