Molecular formula: (NH 4 PO 3 ) n n>1000 CAS No.: 68333-79-9 EINECS No.: 269-789-9 Product description: Melamine formaldehyde resin coated Ammonium polyphosphate is a flame retardant based on ammonium polyphosphate. It is manufactured from ammonium polyphosphate by micro-encapsulation with melamine resin according to Changfeng’s own method. Melamine formaldehyde resin coated Ammonium polyphosphate is a fine-particle white powder with very low solubility in water, even at elevated temperatures. It is completely insoluble in organic solvents. The product is non-hygroscopic and non-flammable. Specifications: Characteristics Target value Appearance White Powder P Content wt% ≥29 N Content wt% 16-18 Viscosity(10% aqueous suspension, 25 o C) mPa.s ≤20 pH Value(10% aqueous suspension ) 5.5-7 Average Particle Size(D50) µm 20-24 Particle Size <50 µm wt% ≥95 >100 µm wt% ≤0.1 Moisture Content wt% ≤0.25 Solubility in Water(g/100ml,25℃) ≤0.04 Solubility in Water(g/100ml,60℃,24h) ≤0.4
Applications: It can be used for all applications where the ammonium polyphosphate is required to have extremely low water solubility even in 60℃hot water and where lower heat stability at temperatures above 300 °C contributes to more rapid foaming of the coating. -Fiber materials( paper, wood, fireproof textile); -All kinds of polymers (sunproof, waterproof, or fireproof); -Fire-refractory building board, coiled material; -Epoxy resin and unsaturated resin; -Cable and rubber; -Plastic material of electron device; -Textile Packing: 25kg woven bag with plastic liner, 500/1000kg super sack.