1kg White Halogen Free Flame Retardant Additives CAS NO. 68333-79-9 Fireproof Coating
Contact me for free samples and coupons.
Wechat: 0086 18588475571
If you have any concern, we provide 24-hour online help.x
|Molecular Formula||(NH4)n+2PnO3n+1||HS CODE||28353990|
|Production Name||Ammonium Polyphosphate Flame Retardant||Application||Fireproof Coating , Steel|
|Usage||Coating Auxiliary Agents||Einecs No.||269-789-9|
|Appearance||White Powder||Type||Flame Retardant|
|Color||White||Sample||1kg For Free|
1kg halogen free flame retardant additives,
white halogen free fire retardants,
CAS NO. 68333-79-9 Fireproof coating
CAS NO. 68333-79-9 Ammonium Polyphosphate Flame Retardant For Fireproof Coating
Ammonium polyphosphate is a long chain polymer without branches. The general formula of molecular structure is (NH4) N +2PnO3n+1. When n is large enough, it can be written as (NH4) N +2PO3n+
How does ammonium polyphosphate work?
Ammonium polyphosphate (Phase II) is a non-halogen flame retardant. It acts as flame retardant by intumescence mechanism. When APP-II is exposed to fire or heat, it decomposes to polymeric phosphate acid and ammonia. The polyphosphoric acid reacts with hydroxyl groups to form a nonstable phosphateester. Following dehydration of the phosphateester, a carbon foam is built up on the surface and acts as an insulation layer.
|Appearance||White powder||White powder|
|N Content (w/w)||≥14%||≥14%|
|Decomposition Temperature (TGA, 99%)||＞275℃||＞275℃|
|Solubility (10% aq. , at 25ºC)||＜0.5%||＜0.7%|
|pH value ( 10% aq. At 25ºC )||5.5-7.5||5.5-7.5|
|Viscosity (10% aq, at 25℃)||＜20 mpa.s||＜20 mpa.s|
|Average Partical size (D50)||15~25µm||＜12µm|
|Partical Size (D100)||＜90µm||＜40µm|
Shifang Taifeng New Flame Retardant Co.,LTD is a professional ammonium polyphosphate flame retardant factory in China.
The annual production capacity is 8000mt. We finished the official register of REACH for APP in 2017. We are a REACH registered halogen-free intumescent fire retardant (APP, inorganic) manufacturer with 21 years of manufacturing experience. We export APP to many European countries, Italy, Germany, Russia, Poland, and so on.