Phosphate
Systematic name Phosphate
Identifiers
CAS number	14265-44-2
PubChem	1061
MeSH	Phosphates
ChEBI	CHEBI:18367
SMILES	[O-]P([O-])([O-])=O
Beilstein Reference	3903772
Gmelin Reference	1997
Properties
Molecular formula	PO3− 4
Molar mass	94.9714 g mol−1
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)

A phosphate is a salt of phosphoric acid. Phosphates are important in biochemistry.Phosphates have the formula PO₄^3- 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, PO₄^3-; metaphosphate, PO₃^2-; and pyrophosphate, P₂O₇^3-. They have a combining power of 3.

The phosphate functional group