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CuO

Copper(II) oxide

IUPAC : Copper(II) oxide
OxideMineralIndustrialLaboratory

Black copper oxide, a p-type semiconductor. Used as a pigment, catalyst and component of experimental solar cells. Classic black powder of chemistry classes (reduction by H₂ or C).

3D ball-and-stick representation of Copper(II) oxide (formula CuO). Constituent atoms: Cu, O.
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Physical properties

Molar mass79.545 g/mol
State at 20 °Csolid
Density6.315 g/cm³
Melting point1599.00 K (1326 °C)
Boiling point—
Solubility (H₂O)insoluble

Structure

Crystal systemMonoclinic
3D render modeBall-and-stick

Uses and applications

  • Black pigment (ceramics, enamels, glass)
  • Catalyst (pollutant destruction, organic chemistry)
  • Semiconductor (experimental solar cells)
  • Agricultural fungicide
  • Oxide-reduction demonstrations in chemistry classes

Safety (GHS)

GHS07 · Harmful / irritantGHS09 · Environmental hazard
H statements : H302, H410

Harmful if swallowed. Very toxic to aquatic life.

Constituent elements

29Cu
Copper
8O
Oxygen

References

PubChem CID14829
CAS1317-38-0
SMILES[Cu]=O
Sources : PubChem CID 14829 · CRC Handbook of Chemistry and Physics