Ammonium polyphosphate
name：Ammonium polyphosphate
Formula：(NH4)n+2PnO3n+1
M.W：
CAS NO.：68333-79-9
Characters：White liquid powder.It is an important branch of phosphorous inorganic flame retardant additive series.Product P and N content are high, thermal stability and chemical stability are good, water solubility and moisture absorption are small, the product is close to neutral, the toxicity is low (LD is greater than 10g/kg).The application process has the advantages of non-volatile, non-corrosive gas, lasting effect and good safety performance.
Usage：Inflatable fire retardant coating;Fireproof construction sheet material;Thermoplastic polyolefin and unsaturated aromatic hydrocarbon plastics;Polyurethane foam;Epoxy and unsaturated resins;Cables and rubber;Electronic components plastic material;Fabric.
Specification：
Content (crystallization Ⅱ type) | % (w/w) | ≥99.0 |
phosphorus content | % (w/w) | ≥31.0 |
nitrogen content | % (w/w) | ≥14.0 |
PH value (25°C,10% suspension ) | --- | ≥6.0 |
water content | % (w/w) | ≤0.20 |
Thermal decomposition | °C | ≥285 |
Average particle size (according to customer needs) | um | 15 |
density | g/cm3 | 1.9 |
bulk density | g/cm3 | 0.7 |
Viscosity (25 ° C, 10% suspension) | mpa.s | ≤80 |
Whiteness (blue) | --- | ≥94 |
degree of polymerization | n | ≥1500 |
Solubility (25 ° C water suspension) | g/100mlH2O | ≤0.20 |