Used as a pigment in paints, coatings, and construction materials due to its red color and stability. Commonly found in rust-proof primers and anti-corrosion coatings. Employed in polishing agents for glass and metal. Acts as a catalyst in industrial chemical reactions, such as the Haber process and water-gas shift reactions. Utilized in thermite mixtures for welding and metal cutting. Added to animal feed as a source of dietary iron. Used in cosmetics for coloration. Plays a role in the production of magnetic storage media and certain types of toners.