Molecular formula: p4 molecular weight: 123. 89 standard executed: gb4947-1990 cas number: 7723-14-0 properties: auburn amorphorus powder with metallic luster; relative density at 2. 34g/cm3(20℃), melting point at 590 ℃ ; soluble in phosphorus tribromide, but insoluble in water or carbon disulphide, liable to burn under chlorine atmosphere, nontoxic, in odorous, without phosphoric light in darkness. uses: used to make matches, fireworks, chemical agent, phosphoric alloy, and as a raw material for manufacturing organic phosphorus fertilizers, and used in metallurgical industry and organic synthesis as well. packing and storage: 50kg iron bucket, 5 10/bag; strike, rolling or throwing strictly forbidden, isolated in storage.