what is iron oxide
Iron Oxide. Iron oxide is a chemical compound made up of oxygen and iron. It is commonly known as hematite. Iron Oxide is a mineral, coloured black to steel or silver-gray, brown to reddish brown, or red.It is mined as the main ore of Iron.ron Oxide's are used as core sand additives to improve sand quality and suppress the incidence of several sand/binder related defects such as lusterous carbon defects, surface carbon pick up in stainless steels, finning/veining, piholing and orange peel defect in shell moulding sands.