Ammonium polyphosphate
(CAS: 68333-79-9)
Product features:Ammonium Polyphosphate is an environment-friendly, non-toxic and halogen-free flame retardant additive, the formula is (NH4PO3)n. APP is an inorganic salt of polyphosphoric acid and ammonia.
APP is a stable, non-volatile compound. When APP 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.
Quality index:
|
Items |
Standard |
|
Appearance |
White powder |
|
P content, (%) |
31.0 - 32.0 |
|
N content, (%) |
14.0 - 15.0 |
|
Average polymerization, (N) |
≥ 1000 |
|
Solubility in water, (25℃, g/100mL) |
About 0.5 |
|
Moisture, (wt/%) |
≤ 0.25 |
|
PH value(10% aqueous suspension) |
5.5 - 7.0 |
|
Average particle diameter, (D50), (µm) |
About 15 |
|
Density, (g/cm³) |
About 1.9 |
|
Bulk density, (g/cm³) |
About 0.7 |
|
Viscosity, (10% aqueous suspension, mpa.s) |
≤ 100 |
|
Decomposition temperature, (℃) |
≥ 275 |
used to produce intumescent type fire-retardant coating, used in plastic, rubber, coating, adhesives, sealant, and fiber, applied in flame retarding treatment of wood, paper, and fiberboard, applied in epoxy resin or unsaturated polyester.
Packing, storage and transportation:
Keep in cool, dry and shading place.
It is packed by aper-polymer outer & PE inner bag, 25 kg/bag.
青岛聚集化工有限公司
青岛科莱特阻燃科技有限公司
电话：0532-86998155
邮箱：jankin.tam@collectchemical.com
地址：山东省青岛市黄岛区澎湖岛街35
