- Inorganic Acids[10]
- Phosphate[10]
- Phosphate Fertilizer[6]
- Compound Fertilizer[8]
- Nitrate[7]
- Agrochemicals & Pesticides[2]
- Other Fertilizers[5]
- Other Inorganic Salts[2]
- Chemical Auxiliary Agent[2]
- Alkali[1]
- Contact Person : Mr. Owen Johnny
- Company Name : Shifang Anda Chemicals Co., Ltd.
- Tel : 86-838-8462999
- Fax : 86-838-8462555
- Address : Sichuan,Shifang,Group 3,Nongke Village,Nanquan Town
- Country/Region : China
- Zip : 618413
Ammonium polyphosphate(APP)
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.Specification :
Specification | Value | |
Appearance | White powder | |
P Content | %(w/w) | ≥31 |
N Content | %(w/w) | >14 |
Decomposition Temperature | ¡æ | >270 |
Density(25¡æ) | g/cm3 | ~1.9 |
Solubility | g/100ml H2O, 25¡æ | ~0.5 |
pH value | ( 10% aqueous suspension ) | 5.5-7.5 |
Viscosity | (10%suspension, 25oC) | <100 |
Monisture | %(w/w) | <0.25 |
Average particle size | µm | ~15 |
Particle size(<50 µm) | %(w/w) | >97 |
Use :In plastics(PP, PVC, PE, etc. ), Polyester, Rubber, and Expandable fireproof coatings.Packing : 25kg woven bag with plastic liner.
Ammonium polyphosphate(APP)