Pyrophosphoric acid



Pyrophosphoric acid
IUPAC name phosphonooxyphosphonic
acid
Other names diphosphoric acid
Identifiers
CAS number 2466-09-3
SMILES OP(=O)(O)OP(=O)(O)O
Properties
Molecular formula H4P2O7
Molar mass 177.98 g/mol
Melting point

61 °C

Boiling point

°C

Except where noted otherwise, data are given for
materials in their standard state
(at 25 °C, 100 kPa)
Infobox disclaimer and references

Pyrophosphoric acid, also known under the name diphosphoric acid, is a syrupy liquid or a needle-like crystalline solid. Pyrophosphoric acid is colorless, odorless, hydrolyzes in the presence of water into phosphoric acid.

2H3PO4 ⇌ H4P2O7 + H2O

Pyrophosphoric acid is a medium strong pyrophosphates.

See also

  • Sodium pyrophosphate
  • Calcium pyrophosphate dihydrate deposition disease
  • Dimethylallyl pyrophosphate
  • ATP

References
     
    This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Pyrophosphoric_acid". A list of authors is available in Wikipedia.