Loading AI tools
Chemical compound From Wikipedia, the free encyclopedia
Zinc pyrophosphate (Zn2P2O7) is an ionic inorganic chemical compound composed of Zn2+ cations and pyrophosphate anions.
Names | |
---|---|
Other names
Dizinc diphosphate | |
Identifiers | |
3D model (JSmol) |
|
ChemSpider | |
ECHA InfoCard | 100.028.367 |
PubChem CID |
|
UNII | |
CompTox Dashboard (EPA) |
|
| |
| |
Properties | |
Zn2P2O7 | |
Molar mass | 304.72 g/mol |
Appearance | White crystalline powder |
Density | 3.75 g/cm3 |
Insoluble | |
Solubility | Soluble in dilute acids |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|
Zinc pyrophosphate can be obtained from the thermal decomposition of zinc ammonium phosphate.[2]
It can also be obtained from the reaction between sodium carbonate, zinc oxide, and ammonium dihydrogen phosphate.[3]
It is also produced when a strongly acidic solution of zinc sulfate is heated with sodium pyrophosphate.[4]
Another method is precipitating zinc as a phosphate, then heating over 1123 K.[citation needed]
Zinc pyrophosphate is a white crystalline solid that is insoluble in water.[5] On heating in water, it decomposes to form Zn3(PO4)2 and ZnHPO4. It crystallizes in the monoclinic system. The α-form crystallizes at low temperatures and the β-form crystallizes at high temperatures.[2][3]
Zinc pyrophosphate is used as a pigment.[5] It is useful in gravimetric analysis of zinc.[6]
Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.