CAS No 68333-79-9 Ammonium Polyphosphate Flame Retardant For Fire Protective Coating

Place of Origin CHINA
Brand Name Taifeng
Certification ISO9001, REACH, SGS
Model Number TF Series
Minimum Order Quantity 25KGS
Packaging Details 25kg/bag or 1mt /bag , 20mt/fcl with pallets
Delivery Time 5-8days
Payment Terms D/P, T/T, L/C
Supply Ability 8000mt/year

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Product Details
Molecular Formula (NH4)n+2PnO3n+1 CAS NO 68333-79-9
HS CODE 28353990 EINECS No 269-789-9
Halogen Free Smoke Low
Eco-friendly Halogen-free REACH Registered
Usage Coating Auxiliary Agents Purity 99%
Type Flame Retardant Appearance White Powder
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CAS No 68333-79-9 Ammonium Polyphosphate


Fire Protective Coating Ammonium Polyphosphate


99% Purity Ammonium Polyphosphate Flame Retardant

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Product Description

CAS No.: 68333-79-9 Ammonium Polyphosphate Flame Retardant For Fire Protective Coating​



Molecular formula : (NH4PO3)n n>1000
CAS No.: 68333-79-9
EINECS No.: 269-789-9

HS CODE: 2835.3990
Model No.: TF-201


Product descriotion:

Ammonium polyphosphate (phase II is a non-halogen fiame retardant, it acts a fiame retardant by intumescence mechanism. When APP I1 is exposed to fire or heat, it decomposes to polymeric phosphate acid and ammonia, The polyphosphoric acid reacts reacts with hydroxy groups to form a nonstable phosphateester. Following dehydration of the phosphate ester, a carbon foam is built up on the surface and acts as an insulation layer.


Basic concept of intumescent

●Intumescent is a substance which swells as

a result of heat exposure, thus increasing in

volume, and decreasing in density.

●Expansion is pormally around 40-60 times

the applied DFT

●Char of low. thermal conductivity that

reduces heat transter t10 substrate

● Thermal insulation of substrate


Specification :

Specification TF-201
Appearance White powder
P content (w/w) ≥31
N content (w/w) ≥14%
Degree of polymerization ≥1000
Moisture (w/w) ≤0.3
Solubility (25℃, g/100ml) ≤0.5
PH value (10% aqueous suspension, at 25ºC) 5.5-7.5
Viscosity(10% aqueous suspension, at 25ºC) <10
Particle size (µm) D50,14-18
Whiteness ≥85
Decomposition temperature T99%≥240℃
Color stain A
Conductivity(µs/cm) ≤2000
Acid value(mg KOH/g) ≤1.0
Bulk density(g/cm3) 0.7-0.9



1. used to prepare many kinds of high-efficiency intumescent coating, the flameproof treatment for wood, multistory building, ships, trains, cables, etc.
2. used as the main flameproof additive for expanding-type flame retardant used in plastic, resin, rubber, etc.

3. make into powder extinguishing agent to be used in large-area outfire for forest, oil field and coal field, etc.

4. In plastics(PP, PE, etc. ), Polyester, Rubber, and Expandable fireproof coatings.

5. used for textile coatings.


Packing : TF-201 25kg/bag, 24mt/20’fcl without pallets, 20mt/20’fcl with pallets. Other packing as request.


Storage: in dry and cool place, keeping out of moisture and sunshine, min. shelf life one year.



CAS No 68333-79-9 Ammonium Polyphosphate Flame Retardant For Fire Protective Coating 0


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Halogen-Free Flame Retardant Application Guide
● Highly Recommend ○ Recommend
APP Series Description Intumescent Coating Textile PP PU Paper Adhesive wood Fertilizer
TF-FR101 APP Phase I          
TF-FR201 APP Phase II basic    
TF-FR201S Fine powder, particle size is smaller than 201    
TF-201W Treated with silane based on 201      
TF-201G Treated with organic silicone based on 201    
TF-201SG Particle size is smaller than 201G    
TF-MF201 Coated with MF based on 201    
TF-211 Special for water stain resistant      
TF-PTS241 Special for PP, UL94 V-0            
TF-FR301 Basic water soluble APP          
TF-FR303 Water soluble APP with high P content         ○ 
TF-PU501 Special for rigid PU foam              
TF-OH01 Special for acrylic adhesive