Ammonium Polyphosphate (APP)

Ammonium polyphosphate APP graphic with white powder in a beaker and a blue-and-white bag

Phosphate Flame Retardants

Product
Ammonium Polyphosphate (APP)
CAS number
68333-79-9

Overview

APP is a halogen-free environmentally friendly flame retardant with phosphorus and nitrogen structure, with a polymerization degree of more than 1000, and is treated by coating and surface modification technology to meet the different needs of customers. Products comply with EU RoHs, REACH, Japan Ministry of Health, Labor and environmental load substances management, Korea K-Reach and other regulations. At the same time, our company can also provide special products according to customer needs, including ultrafine particle size of ammonium polyphosphate.

Also known as

APP

CAS number

68333-79-9

Molecular formula

(NH₄PO₃)ₙ

Specifications

Test Items Specifications
Appearance White powder
P Content (%) 31min
N Content (%) 14min
Average Polymerization (n) 1000min
pH(10% Aqueous Suspension) 5.5-7.5
Water Solubility(g/100 mL H2O,25℃) 0.5max
Viscosity(10%Suspension, 25℃) 100max
Decomposition Temperature 270min
Average Particle Size 15-20μm

Applications

Flame retardant: used in plastics, rubber, coatings and textiles to improve the flame retardant properties of materials. Commonly found in materials such as polypropylene (PP), polyethylene (PE) and polyurethane (PU).

Fertilizer: used as a slow-release fertilizer to provide phosphorus and nitrogen elements required by plants.

Food additive: used in food processing as a leavening agent and acidity regulator.

Other applications: used in fire-retardant coatings, wood treatment and paper flame retardant.

Packaging

25 kg/bag, 500 kg/bag, 1000 kg/bag

Storage

Keep in a cool and dry place.

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