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Ammonium Polyphosphate APP II (various grades)

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Ammonium Polyphosphate APP II (various grades)
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PRODUCT OVERVIEW

DESCRIPTION

Ammonium Polyphosphate APP II (various grades) is a non-halogen flame retardant that operates through an intumescence mechanism. When exposed to heat or fire, it decomposes into ammonia and polymeric phosphate acid, forming a protective barrier. Known for its higher thermal stability and lower water solubility compared to APP I, APP II is a white powder that is non-hazardous and can be shipped as a regular product. It is widely used in applications requiring effective fire resistance without the environmental concerns associated with halogenated compounds.

IDENTIFIERS

Chemical Name

Ammonium Polyphosphate APP II (various grades)

CAS #

68333-79-9

EC #

269-789-9

Molecular Formula

H(NH4PO3)nOH

InChI Key

ZRIUUUJAJJNDSS-UHFFFAOYSA-N

Synonyms

Polyphosphoric acids, ammonium salts; Ammonium polyphosphates; Poly-N 11-37-0; Poly-N 10-34-0; Exolit 454; Exolit 462; Exolit 455; Phos-Chek P 30

CLASSIFICATIONS

Product Group 1

Additives

Product Group 2

Construction, Lubricants & Greases, Agriculture, Food & Nutrition, HI&I, CASE, Plastic & Rubber

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