Widely used in the production of pesticides,pharmaceuticals,dyes,phosphate esterflame retardants,and plastic plasticizers,as wellas in the chlo- rination reaction of long-acting sulfonamide drugs.It is an intermediate in the production of dyes,a chlorinating agent and catalyst for organic syn- thesis,a uranium ore extractant,a solvent for liquid-liquid extraction in nuclear fuel reprocessing,and a phosphorus diffusion agent in the semicon- ductor industry.
Phosphorus trichloride is widely used in industries such as pesticides,pharmaceuticals,dyes,and fragrances.It can be used in the production of pesticides(such as dichlorvos),pharmaceutical raw materials such as piperazine,dyes(such as naphthylamine),essence and spices,and is also an intermediate product in the production of phosphorus oxychloride and phosphorus pentachloride.
Sodium Hexametaphosphate is mainly used in industries such as oil fields,papermaking,textiles,printing and dyeing,petroleum,chemical, leather,metallurgy,and building materials as a soft water agent,buffering agent,flotation agent,dispersant,and high-temperature binder.