Audited Supplier
APP-II
68333-79-9
(Nh4po3)N
269-789-9
CIQ, RoHS, ISO
90%~99%
Ammonium Polyphosphate
Industrial Grade
White Powder
Chenxu
25kg/Bag on Pallets
HG/T2770-2008
Shandong, China
2835399000
Product Description
Ammonium Polyphosphate Phase II For Water based intumescent coatings
1. Application
Ammonium Polyphosphate (APP), Cas No 68333-79-9, is an environment-friendly and halogen-free flame retardant. APP is the main constituent of many intumescent flame retardant systems: coatings, paints and engineering plastics.
Depending on the polymerization degree, there are two main families of ammonium polyphosphate: Crystal phase I APP (or APP I), and Crystal phase II APP (or APP II).
- APP phase I has a short and linear chain (n < 100), it is more water sensitive (hydrolysis) and less thermally stable; actually it begins to decompose at temperatures above 150 °C.
- The second family of Ammonium polyphosphate is the APP Phase II; which has an high polymerization degree, with n>1000, its structure is cross linked (branched), and it is an high-quality non-halogenated flame retardant. APP phase II, Ammonium polyphosphate, has an higher thermal stability (the decomposition starts at approximately 300°C) and lower water solubility than APP I.
APP phase II is probably one of the most effective non-halogen fire retardants in the market.
Main Applications:
Solvent based and Water based intumescent coatings.
Flame retardant for polyurethanes.
Flame retardant for unsaturated polyesters.
Flame retardant for epoxies.
Flame retardant for acrylics.
2. Package, transportation and storage
Package: Internal plastic with knitted exterior covered with film, with the net weight of 25kg.
Loading Container: 25kg/bag on pallet, 18 metric ton per 20'container
Transportation: The product is not dangerous one, which should be protected from damp, rainfall and package damage in transportation.
Storage: At dry warehouse with good ventilation.
3. Product: Ammonium Polyphosphate phase-II - Cas No 68333-79-9
Appearance White powder
pH (10% slurry -25°C) 5.5-7.5
Solubility in water (25°C), g/100ml H2O 0.50 Max
Nitrogen, w/w% 14.0-15.0
Phosphorus (P), w/w% 31.0-32.0
Thermal decomposition onset, °C 285 Min
Particle Size D50, µm About 15
1. Application
Ammonium Polyphosphate (APP), Cas No 68333-79-9, is an environment-friendly and halogen-free flame retardant. APP is the main constituent of many intumescent flame retardant systems: coatings, paints and engineering plastics.
Depending on the polymerization degree, there are two main families of ammonium polyphosphate: Crystal phase I APP (or APP I), and Crystal phase II APP (or APP II).
- APP phase I has a short and linear chain (n < 100), it is more water sensitive (hydrolysis) and less thermally stable; actually it begins to decompose at temperatures above 150 °C.
- The second family of Ammonium polyphosphate is the APP Phase II; which has an high polymerization degree, with n>1000, its structure is cross linked (branched), and it is an high-quality non-halogenated flame retardant. APP phase II, Ammonium polyphosphate, has an higher thermal stability (the decomposition starts at approximately 300°C) and lower water solubility than APP I.
APP phase II is probably one of the most effective non-halogen fire retardants in the market.
Main Applications:
Solvent based and Water based intumescent coatings.
Flame retardant for polyurethanes.
Flame retardant for unsaturated polyesters.
Flame retardant for epoxies.
Flame retardant for acrylics.
2. Package, transportation and storage
Package: Internal plastic with knitted exterior covered with film, with the net weight of 25kg.
Loading Container: 25kg/bag on pallet, 18 metric ton per 20'container
Transportation: The product is not dangerous one, which should be protected from damp, rainfall and package damage in transportation.
Storage: At dry warehouse with good ventilation.
3. Product: Ammonium Polyphosphate phase-II - Cas No 68333-79-9
Appearance White powder
pH (10% slurry -25°C) 5.5-7.5
Solubility in water (25°C), g/100ml H2O 0.50 Max
Nitrogen, w/w% 14.0-15.0
Phosphorus (P), w/w% 31.0-32.0
Thermal decomposition onset, °C 285 Min
Particle Size D50, µm About 15
