Ammonium polyphosphate (APP)

Ammonium polyphosphate (APP) is a kind of Non-halogenenvironmental friendly fire retardant with the structure ofphosphor

and Nitrogen, this product has high degree of polymerization,nice heat stability and lower hygroscopicity.
CAS NO.:68333-79-9
Purity:> 99%
Physical Appearance: white powder
Applications:
Used to prepare many kinds of high-efficiency expanding-typeflameproof 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 flameretardant used in plastic, resin, rubber, etc
Make into powder extinguishing agent to be used in large-areaoutfire for forest, oil field and coal field, etc.
Physical and chemical properties:
item unit properties
  I II
  Water-soluble Class 1 
P2O5 % >=32 >=69 >=70 >=71
Nitrogen(N) % >=12 >=14 >=14 >=14
Averagepolymerization - >=20 >=50 >=200 >=1000
PH(100g/L) - 6.5`8.5 5`7 5`7 5.5`7.5
Pass rate(45ummesh) w/% - >=90 >=90 -
D50/um um - - - <=20
solubility(g/100mLH2O) - - - - <=1
moisture w/% - - - <=0.25
Bulk density g/ml - - - -