Ammonium Polyphosphate Phase I - (Nh4po3)n, Cas No. 68333-79-9 | High-efficiency Flame Retardant, Low Toxicity, Environment-friendly Additive

Following are the Main Specifications of Ammonium Polyphosphate (Phase-I) :-
Molecular formula : (NH4PO3)n n>50
CAS No.: 68333-79-9
Model No. : Ammonium Polyphosphate Phase I(SCI-FR1-APP) Standards : HG/T2770-1996
Properties:Ammonium polyphosphate phase I (SCI-FR1-APP) is an excellent, high-efficiency, environment-friendly and nontoxic inorganic flame retardant, used as flameproof additives for expandable fireproof paint & coating and other flame retardant products.
HG/T2770-1996SCI-Guaranteed value
AppearanceWhite powderWhite powder
P2O5 Content a Y%6869
N Content a Y%1314-15
Average polymerization degree n a Y2080
pH value ( 10% aqueous solution )4.5-6.57.0A 0.5
Solubility in water (g/100ml H2O, 25oC) i ----1.5
Moisture i %(w/w)----0.5
Average particle size(mesh) ----200-325
Property :
1. High content of phosphorus, nitrogen, good flame retardant effect.
2. High polymerization degree, low water-solubility and hygroscopicity.
3. pH value is near to neutral, good thermal stability and compatibility.
4. Low toxicity ( LD50>10g/kg ),safe production and use.
Use :
1. used to prepare many kinds of high-efficiency expandable flameproof coating, the flameproof treatment for multistory building, ships,trains, cables, etc.
2. used in the flameproof treatment for woods, plywood,fiberboard,papers,fibers,etc.