Ammonium Phosphate

The largest use by weight is in agriculture, as an ingredient of fertilisers. It is also used as in dry chemical extinguishers, and very widely in the field of optics due to its crystalline properties.


Molar Weight115.03 g/mol
Melting Point190°C
Density1.803 g/cc
FormsPowder (dry), White, Granular

Uses and Applications

Key applications

  • Baking
  • Pulp and paper
  • Wine production
  • Textile handling
  • Agricultural (non-pesticide)
  • Building & Construction products
  • Electronics


  • Coatings & Construction
  • Food
  • Agrobusiness

Synonyms: Ammonium Phosphate Monobasic, Ammonium Dihydrogenphosphate, Mono-Ammonium Phosphate, Prim-Ammonium Phosphate, MAP

Chemical Formula: H₁₂N₃O₄P

CAS Number: 7722-76-1