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Ammonium Polyphosphate Fertilizer 11-37-0


Synonyms: APP 11-37-0; Polyphosphoric acids, ammonium salts 11-37-0; Water-Soluble fertilizer APP 11-37-0; Slow-releasing fertilizer APP 11-37-0; release-control fertilizer APP 11-37-0
CAS No.: 68333-79-9     EC No.:
Molecular Formula: (NH4PO3)n
Structural Formula: Ammonium Polyphosphate


by thermal process


Ammonium polyphosphate 11-37-0 is a compound of monomer, dimer, trimer, tetramer, pentamer, hexamer, heptamer of ammonium phosphate. It is used as an high-efficient water soluble fertilizer with a healthy balance of quick-acting and slow-releasing. It also works as a very good chelating agent of metal ions in soil such as zinc, manganese, molybdenum, copper, helping to add activity of these metal ions. APP 11-37-0 is manufactured by thermal process.


P2O5 content 37% min.
Nitrogen as N 11% min.
Polymerization rate 70% min.
 Water insulbes 0.2% max.
Average Polymerization Degree 70
PH 5.9~6.5
Density 1.39~1.42 g/cm3

Standard Packaging

1400kgs net /IBC, or flexible container or bulk

Risks and Safety Information

Ammonium polyphosphate is not regulated by UN as hazardous substance
May cause slight skin irritation but not irritating to the mucous membranes.
S-Phrase S24/25 Avoid contact with skin and eyes. React with alkaline solutions to form ammonia and can contribute to eutrophication of stagnant waters. For more information, please see MSDS

No Hazard

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