Red phosphorus red phosphorus 
 Red or purple amorphous powder, also known as red phosphorus, some with metallic luster, odorless, non-toxic, insoluble in water and carbon dioxide. The relative density of 2.20 (20 ° C, melting point 590 ° C, 250-270 ° C ignition point above 630 ℃ sublimation gas directly to metal friction or violent collision, discards may result in a fire burning. Specifications: red phosphorus content% ≥ 98.5 
 Yellow phosphorus content ≤ 0.005 
 Free acid% ≤ 0.5 
 Moisture% ≤ 0.25 
 Fineness of 30 mesh, 60 mesh, 100 mesh 
 Modern industrial production is mainly used for phosphoric acid, phosphorus anhydride, phosphorus pentachloride, phosphorus trichloride and phosphorus bronze for the manufacture of aluminum phosphide, zinc phosphide pesticide, as well as for organic synthesis, pharmaceutical synthesis, added as a plastic flame retardants.