Ammonium Polyphosphte (APP-II)
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China [CN] Core Keywords: flame retardant, fireproof, APP-II
1. Quick Details
Brand Name: REAPCHEM
Pro Name: Ammonium Polyphosphte (APP-II)
Other Name: APP-II
Place of Origin: Shandong, China
Molecular Formula: (NH4PO3)n, n≥1000
CAS NO.: 68333-79-9
Appearance: White crystalline powder
2. Packaging & Delivery
Packaging detail: PP woven bag with PE inner bag in 25kg/50kg/1000kg or according to customer's demand.
Loaded: 24mt/20'FCL with pallets, 25-27mt/20'FCL without pallets
Delivery detail: Within 7-10 days
Transportation: BY SEA
Port: QINGDAO or TIANJIN
3. Specifications
Analysis ItemSpecificationAppearanceWhite powderP2O5≥71%P≥30%N≥14%Thermal decomposition temperature275 ºCWater solubility≤0.5%pH5.5~7.5Particle size D50≤15µm4. Application
APP is a halogen-free flame retardant widely applied in construction, automotive and electrical industries. It functions via an intumescent mechanism, forming a protective char layer to insulate substrates and block oxygen penetration.
APP can be used in textile coating, intumescent fireproof coatings and thermoset resins, such as polyurethane, UP resin and epoxy resin. It can also be used in the retardant of fiber, wood, rubber and plastic products. Due to its high molecular weight (n>1000) and good heat stability, APP can be used as main ingredient of expanding retardant thermoplastic, especially used in the PP achieving UL94-V0 for electronic unit.
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