What is another word for ferric oxide?
Pronunciation: [fˈɛɹɪk ˈɒksa͡ɪd] (IPA) 
Ferric oxide, also known as iron oxide, is a common pigment used in many industries. Synonyms for ferric oxide include rust, iron(III) oxide, red iron oxide, hematite, and ferric iron oxide. Rust is a term commonly used to describe the reddish-brown coating that forms on iron and steel when they are exposed to oxygen and moisture. Hematite is a mineral form of iron oxide that is often found in sedimentary rocks. Red iron oxide is another term used for ferric oxide, which describes the distinct red-brown color of this pigment. Ferric iron oxide is a more technical term used in scientific contexts to refer to the chemical composition of this material.
