Fe2O3

Fe₂O₃, known as iron(III) oxide or rust, is a common chemical compound made of iron and oxygen. It forms when iron reacts with oxygen over time, especially when exposed to moisture and air. It appears as a reddish-brown powder or crust. Fe₂O₃ is used in various industries, such as in the production of steel, pigments for coloring, and a catalyst in chemical processes. It is naturally present as rust on iron objects, indicating corrosion. Despite its appearance as rust, it plays important roles in manufacturing and environmental processes.