Ammonium polyphosphate (phase-II)
Molecular formula : (NH4PO3)n n>1000 CAS No.: 68333-79-9 EINECS No.: 269-789-9 HS CODE: 2835.3990 Model No.: TF-FR201, TF-FR201S
Product introduction
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.
Features
Product Usage
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.
Product index
Specification | TF-FR201 | TF-FR201S |
Appearance | White powder | White powder |
P2O5 (w/w) | ≥71% | ≥70% |
N Content (w/w) | ≥14% | ≥14% |
Decomposition Temperature (TGA, 99%) | ＞275℃ | ＞275℃ |
Solubility (10% aq. , at 25ºC) | ＜0.45% | ＜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 |
Moisture (w/w) | ＜0.25% | ＜0.25% |
Average Partical size (D50) | 15~25µm | ＜12µm |
Packing : TF-FR201 25kg/bag, 24mt/20’fcl without pallets, 20mt/20’fcl with pallets. Other packing as request.
TF-FR201S 20kg/bag, 20mt/20’fcl without pallets, 18mt/20’fcl with pallets. Other packing as request.
Storage: in dry and cool place, keeping out of moisture and sunshine, shelf life two year.
