2013-09-05 by seoer8Iron, or iron oxide , chemical formula Fe2O3, is the main component of rust. The main cause of rust metal iron in the presence of impurities in the carbon, and the environment in the water and react with oxygen and iron will rust. Iron oxide, chemical formula Fe2O3, is the main component of rust. The main cause is iron rust metal in the presence of carbon impurities and moisture in the environment and react with oxygen and iron will rust. For paint, ink, rubber and other industries, do the catalyst, glass, stones, metal polishes, iron can be used as raw materials. Iron oxide pigment is applied as a maximum to use. Divided by color iron oxide red, iron oxide yellow, iron oxide black, iron oxide brown from the iron oxide red, iron oxide black (and yellow iron oxide) blend; Oxide Orange is a mixture of iron oxide red and iron oxide yellow made; oxide green is blue phthalocyanine blue and yellow iron oxide mixture.