Chemical formula: p4 molecular weight: 123. 89 standard executed: gb7816-98 cas number: 12185-10-3 properties: yellow or white translucent crystallold with garlicky odor,turns dark in color on exposure to lilght. Melting point at 44. 1℃ , boiling point at 280℃ ,density at 1. 82 g/cm3; it burns spontaneously in air with evolution of white smoke. Soluble in benzene, carbon bisulfide and chloroform slightly soluble in ether , insoluble in water. Both elementary phosphorus and its smoke are very toxic so that it must be stored in water and immersed in water for storage. uses: used as a raw materilal for the manufacture of phosphoric acid , pesticides , and high performance fertilizers. packing and storage: 200kg net in metal pail, store at a ventilated, dry palce.