Trioctyl phosphate is a colorless and odorless, transparent viscous liquid. It is widely used in chemical production. Its most important application lies in the production of hydrogen peroxide. As a solvent for hydrogen anthraquinone, trioctyl phosphate has the advantages of high solubility of hydrogen anthraquinone, high distribution coefficient of hydrogen peroxide between water and the solvent, high boiling point, high ignition point, and low consumption.