1. Usage: 1. The red-brown pigment powder as a low-level, industry, said iron oxide red, used in paint, ink, rubber and other industries
2. Do Catalyst
3. Glass, precious stones, metal polishing agent
4. For the refining of pig iron and CO reaction (H2 can)
2. poduction process: Burning in the air such as iron compounds or iron hydroxide can be ferric oxide.