The degree of polymerization of our high-polymerization long-chain ammonium polyphosphate is higher than 50.
Ammonium polyphosphate
Chemical formula (NH4PO3)n n>50
Properties The degree of polymerization of our high-polymerization long-chain ammonium polyphosphate is higher than 50;solubility in water,lower than 2g in every 100ml water,low hygroscopicity;high content of phosphorus and nitrogen,good flameproof effect.PH is near to neutral,good heat stability and good compatibleness,very low toxicity(LD 50>10g kg),very safe during production and use.
Application Used to prepare many kinds of high-efficiency expanding-type flameproof coating,the flameproof treatment for multistory building,ships,trains,cables;in the flameproof treatment for woods,plywood,fiberboard,papers,fibers etc.
Packing 25kg or 50kg net in plastic-woven sack with inner polythene film bag.Store in a ventilated,dry place.
Technical specifications
NO | Specifications | HG/T2770-1996 |
1 | Phosphorus pentoxide %≥ | 68.0 |
2 | Nitrogen,as N %≥ | 13.0 |
3 | PH value of 1% solution | 4.5∼6.5 |
4 | average degree of polymerization | 0.5 |
APP ammonium polyphosphate flame-retardant additives
