镇江星星阻燃剂有限公司(镇江森华阻燃工程科技有限公司)

Ammonium polyphosphate (APP-1 ) Molecular Formula: (NH4PO3)n Appearance : White powder Specifications: P (%): 31-32 N (%) 14 min Degree of polymerization 1500 min Density (g/cm3) 1.9(g/cm3) Decomposition temperature 275℃ max Solubility in water (25℃g/100mlH2O) 0.2 g max Viscosity (25°C in 10%suspension) 100 mpa.s max PH 5.5~7.5 Average particle size 15um max  Crystal :Phase II APP-1 is a fine-particle ammonium polyphosphate produced by a special method. The product is largely insoluble in water and completely insoluble in organic solvents. It is colourless, non-hygroscopic and non-flammable. APP-1differs from most other commercial products in the following ways: - greatly reduced solubility in water - lower viscosity in aqueous suspensions - lower viscosity in PU polyol suspensions - very low acid number Main use in Plastic(PP,PE,PA,PVC,PBT),PU, Rubber ,Paint ,coating