Zinc pyrophosphate

Zinc pyrophosphate^[1]
	Zinc pyrophosphate
Names
	Other names Dizinc diphosphate
Identifiers
CAS Number	7446-26-6
ChemSpider	56393
Jmol 3D model	Interactive image
PubChem	62641
	InChI InChI=1S/H4O7P2.2Zn/c1-8(2,3)7-9(4,5)6;;/h(H2,1,2,3)(H2,4,5,6);;/q;2+2/p-4 Key: OMSYGYSPFZQFFP-UHFFFAOYSA-J ; InChI=1/H4O7P2.2Zn/c1-8(2,3)7-9(4,5)6;;/h(H2,1,2,3)(H2,4,5,6);;/q;2+2/p-4 Key: OMSYGYSPFZQFFP-XBHQNQODAA ;
	SMILES [Zn+2].[Zn+2].[O-]P([O-])(=O)OP([O-])([O-])=O ;
Properties
Chemical formula	Zn2P2O7
Molar mass	304.72 g/mol
Appearance	White crystalline powder
Density	3.75 g/cm3
Solubility in water	Insoluble
Solubility	Soluble in dilute acids
Vapor pressure	{{{value}}}
	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

Zinc pyrophospate (Zn₂P₂O₇) is an ionic inorganic chemical compound composed of Zn²⁺ cations and pyrophosphate anions. It is useful in gravimetric analysis of zinc. Zinc pyrophosphate is obtained by precipitating zinc as a phosphate, then heating over 1123 K.^{[citation needed]}

References

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