Phosphorus Pentoxide

  • Phosphoric anhydride
  • CAS CAS 1314-56-3
  • Molar weight 283,886 g/mol
  • Chemical formula O10P4

Phosphorus pentoxide is a phosphorous oxide. Phosphorus pentoxide is used as a strong drying and dehydrating agent. Many reactions that require the removal of a water molecule can utilize P2O5 such as the dehydration of amides to nitriles. It is primarily used in making optical glass and heat-insulating glass. In addition, phosphorus pentoxide is a key ingredient to produce pharmaceuticals and pesticides in the pharma and agricultural industry.

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Phosphorus Pentoxide
  • Phosphoric anhydride
  • CAS CAS 1314-56-3
  • Chemical formula O10P4
  • Molar weight 283,886 g/mol

Product details of Phosphorus Pentoxide

Phosphoric anhydrideDiphosphorus pentoxidePhosphorpentoxidTetraphosphorus decaoxidePhosphoric acid anhydridePhosphoric oxidePhosphorous pentoxide
  • White amorphous powder

Chemical formula


CAS number

CAS 1314-56-3

Molar weight

283,886 g/mol

Specific Gravity


Melting Point

340 °C

Boiling Point

360 °C


  • Chemical Synthesis
  • Dehydratings Reagents
  • Catalyst production
  • Glass
  • Pharma
  • Agricultural industry

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