Rutile is a relatively pure titanium dioxide. It has excellent properties such as high temperature resistance, low temperature resistance, corrosion resistance, high strength, and small specific gravity. It is widely used in military aviation, aerospace, navigation, machinery, chemical industry, seawater desalination, etc. Rutile itself is one of the necessary raw materials for high-end welding electrodes, and it is also the best raw material for the production of rutile titanium dioxide. The chemical composition is TiO2.