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68333-79-9 Ammonium polyphosphate

product Name Ammonium polyphosphate
CAS No 68333-79-9
Synonyms PNP; polyphosphoric acids ammonium salts; APP; APP-0; XAP-01; APP-3; APP-1; ammonium polyphosphate flame retardant; Water-SolubleAmmoniumPolyphosphate; CrystallinePhaseIiAmmoniumPolyphosphate; Ammonium Polyphosphate (APP); CF-2; Polyphosphoric acids, ammonium salts; High Temperature Resistance Phase II Ammonium Polyphosphate/APP Flame Retardant; APP Flame Retardant
Molecular Formula (NH4PO3)n
EINECS 269-789-9

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Description Ammonium polyphosphate¡¯s (APP) molecular formula is(NH4PO3)n, n>1000. As inorganic chain polymer, there¡¯s P-N collaboration effect because of high phosphorus and nitrogen content, so it has excellent fire retardant effect. It has good heat stability (decompounding temperature more than 275¡æ), low water-solubility (no more than 0.2g/100ml water), and it approaches neuter polarity. It becomes the most important and widely used acid and gas stuff in chemistry expansive system. It can be compounded with other fire retardants, and it is of slight toxicity, (LD50>10g/kg). It can be applied in PE, PP, engineering plastic, rubber, fibre after surface modification. So it is named environmental fire retardant.
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Smart Chemicals Group Co. Ltd. [ Gold Suppliers ]
Telephone +86-21-33927743;33927342
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Specifications PHASE II
Packing 25KG/bag
Description 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¡æ max Solubility in water (25¡æg/100mlH2O) 0.2 g max Viscosity (25¡ãC 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
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