Copper(II) phosphate

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Copper(II) phosphate
Fosforečnan měďnatý.PNG
Identifiers
CAS number 7798-23-4 YesY
PubChem 86469
ChemSpider 77984 YesY
Jmol-3D images Image 1
Properties
Molecular formula Cu3(PO4)2
Molar mass 380.580722 g/mol (anhydrous)
434.63 g/mol (trihydrate)
Appearance light bluish-green powder (anhydrous)
blue or olive crystals (trihydrate)
Solubility in water insoluble
Solubility anhydrous:
soluble in ammonia
trihydrate:
soluble in ammonium hydroxide
slightly soluble in acetone
insoluble in ethanol
Structure
Crystal structure orthorhombic (trihydrate)
Related compounds
Other cations Iron(II) phosphate
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Infobox references

Copper(II) phosphate (not to be confused with copper(I) phosphate) in an inorganic compound consisting of copper cations and the phosphate anions; with the chemical formula Cu3(PO4)2. It may also be regarded as the cupric salt of phosphoric acid.

It is commonly encountered as the hydrated species Cu2(PO4)OH, which is green and occurs naturally as the mineral libethenite. Anhydrous copper(II) phosphate is blue with triclinic crystals and can be produced by a high-temperature reaction between diammonium phosphate and copper(I) oxide.[1]

2 (NH4)2HPO4 + 3 CuO → Cu3(PO4)2 + 3 H2O + 4 NH3

References[edit]

  1. ^ Shoemaker, G. L.; Anderson, J. B.; Kostiner, E. (15 September 1977). "Copper(II) phosphate". Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry 33 (9): 2969–2972. doi:10.1107/S0567740877010012.