Fe^2O^3

Fe^2O^3 is the chemical formula for iron(III) oxide, also known as ferric oxide or rust. It is a compound made up of two iron atoms (Fe) and three oxygen atoms (O). Iron(III) oxide is commonly found in nature as a reddish-brown powder, and it is used for various purposes such as pigment for paints, ceramics, and as a catalyst in certain chemical reactions.