Copper(II) phosphate

Names
IUPAC name

copper(II) phosphate

Other names

tricopper diphosphate
tricopper bis(orthophosphate)

Identifiers

CAS Number

* 7798-23-4 trihydrate Y

3D model (JSmol)

* Interactive image

ChemSpider |

* 77984 Y

PubChem CID

* 86469

UNII |

* N8NP6FR80R Y

InChI

* InChI=1S/3Cu.2H3O4P/c;;;2*1-5(2,3)4/h;;;2*(H3,1,2,3,4)/q3*+2;;/p-6

Key: GQDHEYWVLBJKBA-UHFFFAOYSA-H

SMILES

* [O-]P(=O)([O-])[O-].[O-]P(=O)([O-])[O-].[Cu+2].[Cu+2].[Cu+2]

Properties

Chemical 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 product (Ksp)

| 1.4×10−37[1]
Solubility | anhydrous:
soluble in ammonia

* * *

trihydrate:
soluble in ammonium hydroxide
slightly soluble in acetone
insoluble in ethanol
Structure

Crystal structure

| orthorhombic (trihydrate)
Hazards
NIOSH (US health exposure limits):

PEL (Permissible)

| TWA 1 mg/m3 (as Cu)[2]

REL (Recommended)

| TWA 1 mg/m3 (as Cu)[2]

IDLH (Immediate danger)

| TWA 100 mg/m3 (as Cu)[2]
Related compounds

Other cations

| Iron(II) phosphate

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Infobox references

Copper(II) phosphate are inorganic compounds with the formula Cu3(PO4)2.n(H2O). They can be regarded as the cupric salts of phosphoric acid. Anhydrous copper(II) phosphate and a trihydrate are blue solids.

## Contents

* 1 Preparation
* 2 Structure
* 3 Minerals
* 4 References
* 5 External links

## Preparation

Hydrated copper(II) phosphate precipitates upon addition of a solution of alkali metal phosphate to an aqueous solution of copper(II) sulfate.[3] The anhydrous material can be produced by a high-temperature (1000 °C) reaction between diammonium phosphate and copper(II) oxide.[4]

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

## Structure

In terms of structure, copper(II) phosphates are coordination polymers, as is typical for most metal phosphates. The phosphate center is tetrahedral. In the anhydrous material, the copper centers are pentacoordinate. In the monohydrate, the copper adopt 6-, 5-, and 4-coordinate geometries.[5]

Structure of Cu3(PO4)2(H2O).

## Minerals

It is relatively commonly encountered as the hydrated species Cu2(PO4)OH, which is green and occurs naturally as the mineral libethenite. Pseudomalachite, Cu5(PO4)2(OH)4, is the most common Cu phosphate in the nature, typical for some oxidation zones of Cu ore deposits.[6][7]

## References

1. ↑ John Rumble (June 18, 2018) (in English). CRC Handbook of Chemistry and Physics (99 ed.). CRC Press. pp. 5–188. ISBN 978-1138561632.
2. ↑ 2.0 2.1 2.2 NIOSH Pocket Guide to Chemical Hazards. "#0150". National Institute for Occupational Safety and Health (NIOSH). https://www.cdc.gov/niosh/npg/npgd0150.html.
3. ↑ Richardson, H. Wayne (2000). "Copper Compounds". Ullmann's Encyclopedia of Industrial Chemistry. doi:10.1002/14356007.a07_567. ISBN 3527306730.
4. ↑ Shoemaker, G. L.; Anderson, J. B.; Kostiner, E. (15 September 1977). "Copper(II) phosphate". Acta Crystallographica Section B 33 (9): 2969–2972. doi:10.1107/S0567740877010012.
5. ↑ Effenberger, H. (1985). "Cu3(PO4)2 · H2O: Synthese und Kristallstruktur". Journal of Solid State Chemistry 57 (2): 240–247. doi:10.1016/S0022-4596(85)80014-1. Bibcode: 1985JSSCh..57..240E.
6. ↑ [https://www.mindat.org/min-3299.html Pseudomalachite on Mindat
7. ↑ "List of Minerals". 21 March 2011. https://www.ima-mineralogy.org/Minlist.htm.

## External links

* Handbook of chemistry and physics http://www.hbcpnetbase.com/

* v
* t
* e

Copper compounds

Cu(0,I)|

* Cu5Si

Cu(I)|

* CuBr
* CuCN
* CuCl
* CuF
* CuH
* CuI
* Cu2C2
* Cu2Cr2O5
* Cu2O
* CuOH
* CuNO3
* Cu3P
* Cu2S
* CuSCN

Cu(I,II)|

* Cu3H4O8S2

Cu(II)|

* Cu(BF4)2
* CuBr2
* CuC2
* CuCO3
* Cu(CN)2
* Cu(ClO3)2
* CuCl2
* CuF2
* Cu(NO3)2
* Cu3(PO4)2
* Cu(N3)2
* CuO
* CuO2
* Cu(OH)2
* CuI2
* CuS
* CuSO4
* Cu3(AsO4)2

Cu(III)|

* K3CuF6
* Cu2O3

Cu(IV)|

* Cs2CuF6
* Rb2CuF6

0.00

(0 votes)

Original source: https://en.wikipedia.org/wiki/Copper(II) phosphate. Read more

|

Retrieved from "https://handwiki.org/wiki/index.php?title=Chemistry:Copper(II)_phosphate&oldid=2968408"
*[CID]: Compound ID
*[v]: View this template
*[t]: Discuss this template
*[e]: Edit this template