Triethyl phosphate for the following purposes: (1) a catalyst, the catalyst xylene isomers; olefin polymerization catalysts; catalyst manufacturing tetraethyl lead; Production of carbodiimide catalyst; displacement reaction catalyst and a trialkyl boron olefins; high temperature dehydration of manufacturing vinyl acetate one of the catalyst; (2) Solvent nitrocellulose and cellulose acetate; organic peroxide catalyst life for holding a solvent; fluorinated ethylene dispersing solvent; as a polyester resin, an epoxy resin curing agent is a peroxide catalyst and diluent. (3) a stabilizer, a chlorine-based pesticides and stabilizer; phenolic resin stabilizer; sugar alcohol resin solid agent. (4) synthetic resin aspects, xylenol formaldehyde resin curing agent; softener used in shell mold of a phenolic resin; softener chloride; vinyl acetate polymer plasticizers; flame retardant polyester resin agent.