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Ammonium polyphosphate (APP)

Ammonium polyphosphate (APP) is a kind of Non-halogen environmental friendly fire retardant with the structure of phosphor and Nitrogen, this product has high degree of polymerization, nice heat stability and lower hygroscopicity.
CAS NO.:*********9
Purity:> *9%
Physical Appearance: white powder
Applications:
Used to prepare many kinds of high-efficiency expanding-type flameproof coating, the flameproof treatment for multistory building, ships, trains, cables, etc.
Used in the flameproof treatment for woods, plywood, fiberboard, papers, fibers, etc.
Used as the main flameproof additive for expanding-type flame retardant used in plastic, resin, rubber, etc
Make into powder extinguishing agent to be used in large-area outfire for forest, oil field and coal field, etc.
Physical and chemical properties:
item unit properties
  â…  â…¡
  Water-soluble Class 1 
P2O5 % ≥*2 ≥*9 ≥*0 ≥*1
Nitrogen(N) % ≥*2 ≥*4 ≥*4 ≥*4
Average polymerization — ≥*0 ≥*0 ≥**0 ≥***0
PH（**0g/L） — 6.5～8.5 5～7 5～7 5.5～7.5
Pass rate(*5um mesh) ω/% — ≥*0 ≥*0 —
D*0/um μm — — — ≤*0
solubility(g/**0mLH2O） — — — — ≤1
moisture ω/% — — — ≤0.*5
Bulk density g/ml — — — —