Ammonium polyphosphate CAS#68333-79-9

Ammonium polyphosphate CAS#68333-79-9

Non-Toxic and Environmentally Friendly:Halogen-free and safe for use in various industrial and consumer applications.


Versatile Flame Retardant:Effective in coatings, paints, plastics, textiles, and wood for fire protection.


High Thermal Stability (Phase II):Phase II APP decomposes above 300 °C, making it suitable for high-temperature applications.


Controlled Solubility and Polymerization:Available in two forms—Phase I (short-chain, water-sensitive) and Phase II (long-chain, low water solubility)—allowing tailored performance for specific needs.


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product description

Product Description of Ammonium polyphosphate CAS#68333-79-9

Ammonium Polyphosphate (APP) is a non-toxic, halogen-free flame retardant synthesized from polyphosphoric acid and ammonia. It has two main grades: APP Phase I: Short linear chains with n<100, water sensitive and decomposable above 150 °C. APP Phase II: High-polymerized branched structure with n>1000, low water solubility, high thermal stability, decomposition temperature over 300 °C, serving as a premium halogen-free flame retardant.


Product Application of Ammonium polyphosphate CAS#68333-79-9

Ammonium Polyphosphate (APP) is an eco-friendly halogen-free flame retardant widely applied in coatings, paints and engineering plastics. As a key component of intumescent flame retardant systems, it can be used alone or compounded with other materials for flame retarding textiles, paper, fibers and wood. High-concentration grades with up to 50% P/N are available for special uses. APP also serves as a fertilizer, typically with N-P₂O₅-K₂O ratios of 10-34-0 or 11-37-0. Featuring high nutrient content, good stability and fine compatibility with micronutrients, polyphosphate fertilizers allow long-term storage and effectively supply plant nutrients.

Parameters


density1.74[at 20℃]
vapor pressure0.076Pa at 20℃
storage temp.−20°C
solubilityAqueous Acid (Slightly)
formSolid
colorWhite to Off-White
biological sourcerabbit
InChIInChI=1S/3H3N.H3O4P/c;;;1-5(2,3)4/h3*1H3;(H3,1,2,3,4)
InChIKeyZRIUUUJAJJNDSS-UHFFFAOYSA-N
SMILESP(=O)([O-])([O-])[O-].[N+]([H])([H])([H])[H].[N+]([H])([H])([H])[H].[N+]([H])([H])([H])[H]
LogP-2.148 (est)
CAS DataBase Reference68333-79-9
EPA Substance Registry SystemAmmonium polyphosphates (68333-79-9)


Safety Information


TSCATSCA listed


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Delivery Time

Inventory 2-3 working days New manufacturing 7-10 working days

Mode of Transportation
1. By Air, fast but expensive.
2. By Sea, usual and economy.
3. By Train, suit for middle Asia countries.
4. By Express, suit for small package.
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