YS Series red phosphorus is an ultra-fine (100m--200m ) red phosphorus powder which producted by our factory. Molecular formula: P4 Molecular weight 123.89 Standard executed GB4947-1990 Guaranteed Technical Specifications: No. Specification 1st Grade 2nd Grade 1.P4 content %99 98.5 2.Yellow phosphorus% 0.005 0.01 3.Free Aci 4 Moisture% 0.25 0.3 5 Fineness (60-mesh)% 70 70 6 Super fineness (100-mesh)% 80 7 Super fineness (150-mesh)% 80 Properties Auburn amorphorus powder with metallic luster; relative density at 2.34, 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?0/bag; strike, rolling or throwing strictly forbidden, isolated in storage.