Used as a desiccant for gases and liquids; Dehydrating agent for organic synthesis, anti-static agent for polyester resin, refining agent for drugs and sugars. It is the raw material for producing high-purity phosphoric acid, phosphate, phosphides, and phosphate esters. It can also be used for the production of pentoxide phosphorus sol and H-type aerosols. [3] Used for manufacturing optical glass, UV transparent glass, heat-insulating glass, microcrystalline glass, and opaque glass to improve the dispersion coefficient and UV transmittance of the glass. Used as a desiccant, dehydrating agent, refining agent for sugar, and for the production of phosphoric acid, phosphorus compounds, and aerosols. It is also used as a doping source for semiconductor silicon, dehydrating desiccant, organic synthesis condensing agent, and surfactant. In junior high school chemistry, it is often used to test the mass fraction of oxygen in the air.

Upstream raw material: yellow phosphorus

Downstream products: Tetrachlorophosphorus trioxide, O, O-diethyl thiophosphoryl chloride, 2-chloro-5-chloromethylpyridine, trichloroacetonitrile, compound fertilizer, insecticide for moths (40%), ammonomide, amitriptyline hydrochloride, antistatic agent, antistatic agent P, antistatic agent PK, monoalkyl ether phosphate ester, ammonium polyphosphate, water treatment agent POE, polyester oil agent, AE active grease.