Tributyl phosphate is an organic compound with the chemical formula C12H27O4P/(C4H9)3PO4, which is a colorless liquid with a pungent odor. Mainly used as a solvent, it is also often used as a plasticizer for nitrocellulose, cellulose acetate, chlorinated rubber and polyvinyl chloride, an extractant for rare metals, etc., and a heat exchange medium. The main component of tributyl phosphate defoamer is developed with tributyl phosphate, which is soluble in various organic solvents, insoluble in water, resistant to high temperature and strong acid, and has a small amount of use, which does not affect the basic properties of the foaming system. . The industrial defoamer can effectively make the formed foam film in an unstable state and quickly defoam.