The Chemical formula of Iron III oxide is Fe2O3. It really is obtained from a mineral ore known as hematite. It's mined and after that processed to acquire iron oxide for extracting the metal. Iron is also known as Ferrum in Latin. The valency of this metal is two and https://nano-silicon-powder72479.illawiki.com/2051534/an_unbiased_view_of_bismuth_oxide