C

Copper(II) oxide

IUPAC: copper oxygen(2-)

CuO Inorganic Compounds CAS 1317-38-0
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Quick Reference
Formula / NotationCuO
CAS Number1317-38-0
Molecular Weight79.55
Melting PointDecomposes at 1326
Boiling PointDecomposes at 1026
Density6.315 @ 14 °C/4 °C
SolubilityInsoluble
AppearancePellets or Large Crystals, Other Solid; Pellets or Large Crystals; Dry Powder, Pellets or Large Crystals; Dry Powder; Water or Solvent Wet Solid; Water or Solvent Wet Solid, Other Solid; Other Solid
Also Known Ascopper oxygen(2-); Copper oxide (CuO); Copper(2+) oxide; Copper monoxide; Cuprum oxydatum nigrum; DTXSID5034488; CHEBI:75955; V1XJQ704R4; NSC-83537; Copper Oxide 0.4
CategoryInorganic Compounds

What is Copper(II) oxide?

Copper(II) oxide is a metal oxide that has the formula CuO. It has an ionic structure. It contains a copper(2+).

Formula & Notation

CuO

IUPAC Name: copper oxygen(2-)

Other Names / Synonyms: copper oxygen(2-); Copper oxide (CuO); Copper(2+) oxide; Copper monoxide; Cuprum oxydatum nigrum; DTXSID5034488; CHEBI:75955; V1XJQ704R4; NSC-83537; Copper Oxide 0.4

Properties & Characteristics

Appearance: Pellets or Large Crystals, Other Solid; Pellets or Large Crystals; Dry Powder, Pellets or Large Crystals; Dry Powder; Water or Solvent Wet Solid; Water or Solvent Wet Solid, Other Solid; Other Solid. Molecular formula: CuO. Molecular weight: 79.55 g/mol. Boiling point: Decomposes at 1026. Melting point: Decomposes at 1326. Density: 6.315 @ 14 °C/4 °C. Solubility: Insoluble. Vapor pressure: 0 mmHg (approx).

Physical Data

PropertyValue
Melting PointDecomposes at 1326
Boiling PointDecomposes at 1026
Density6.315 @ 14 °C/4 °C
Molecular Weight79.55
SolubilityInsoluble
AppearancePellets or Large Crystals, Other Solid; Pellets or Large Crystals; Dry Powder, Pellets or Large Crystals; Dry Powder; Water or Solvent Wet Solid; Water or Solvent Wet Solid, Other Solid; Other Solid

Uses & Applications

Used in industrial processes, materials science, semiconductor manufacture, ceramics, or as a catalyst.

Safety Information

May be corrosive, toxic, or an oxidising agent. Handle in well-ventilated area. Consult SDS before use.

Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.

Key Facts

Term Copper(II) oxide
Formula CuO
CAS Number 1317-38-0
Molecular Weight 79.55
Category Inorganic Compounds
Index All "C" terms
Synonyms copper oxygen(2-); Copper oxide (CuO); Copper(2+) oxide; Copper monoxide; Cuprum oxydatum nigrum; DTXSID5034488; CHEBI:75955; V1XJQ704R4; NSC-83537; Copper Oxide 0.4

Frequently Asked Questions

Copper(II) oxide is a metal oxide that has the formula CuO. It has an ionic structure. It contains a copper(2+).

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Editorial standards: Chemical data is sourced from peer-reviewed literature, CAS Registry, NIST WebBook, and PubChem. Safety information reflects guidance from OSHA, ECHA, and IAEA. For educational purposes only — always consult official SDS documentation and qualified professionals before handling chemicals.

AllChemicals.info — The Online Chemical Glossary | https://allchemicals.info/chemical/copper-ii-oxide

For educational purposes only. Verify all information before use.