Phosphate

salts or esters of phosphoric acid
(Redirected from Phosphates)

A phosphate is a salt of phosphoric acid. Phosphates are important in biochemistry. Phosphates have the formula PO43- and a molar mass of 94.973 g/mol. An example of a phosphate is sodium phosphate. Three different types of phosphates are known. They are orthophosphate, PO43-; metaphosphate, PO32-; and pyrophosphate, P2O73-. They have a combining power of 3.

Phosphate
Aromatic ball and stick model of phosphate
Aromatic ball and stick model of phosphate
Space-filling model of phosphate
Space-filling model of phosphate
Names
Systematic IUPAC name
Phosphate[1]
Identifiers
  • 14265-44-2 checkY
3D model (JSmol)
Beilstein Reference 3903772
ChEBI
ChemSpider
Gmelin Reference 1997
MeSH Phosphates
UNII
  • [O-]P([O-])([O-])=O
  • [O-]P(=O)([O-])[O-]
  • O=P([O-])([O-])[O-]
  • [O-][P+]([O-])([O-])[O-]
Properties
PO3−
4
Molar mass 94.9714 g mol−1
Conjugate acid Hydrogen phosphate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references
The phosphate functional group

Structure change

Phosphates are made of one phosphorus atom surrounded by four oxygen atoms. Many phosphates do not dissolve in water.

Sources change

  1. "Phosphates – PubChem Public Chemical Database". The PubChem Project. USA: National Center of Biotechnology Information.