Copper(II) Oxide

CuO

IUPAC: Copper(II) oxide

CAS: 1317-38-0

Overview

Copper(II) oxide is a black solid that occurs naturally as the mineral tenorite. It is used as a pigment, in ceramics, and as a precursor for other copper compounds. It forms the black scale on copper when heated in air.

Composition

Element Symbol Atoms Atomic Mass
Oxygen O 1 15.9990
Copper Cu 1 63.5460

Elemental Composition

O
Oxygen ×1
20.1%
Cu
Copper ×1
79.9%

Uses

  • • Ceramic glaze colorant
  • • Welding flux ingredient
  • • Catalyst
  • • Superconductor research

Fun Facts

  • ✦ High-temperature superconductors are based on copper oxide ceramic materials

Safety

  • ⚠ Harmful if inhaled or ingested
  • ⚠ Eye and skin irritant

Structure

SMILES

[O-2].[Cu+2]

Properties

Type
oxide
State
solid
Molar Mass
79.55 g/mol
Density
6.3150 g/cm³
Melting Point
1326.0 °C
Boiling Point
2000.0 °C
Solubility
insoluble

Molecular Descriptors

Exact Mass
78.9245
TPSA
1.0 Ų
H-Bond Donors
0
H-Bond Acceptors
1
Rotatable Bonds
0
Heavy Atoms
2
Complexity
0.0

Also Known As

Cupric oxide Tenorite

Related Compounds

Aluminum Oxide

Al₂O₃

Antimony Trioxide

Sb₂O₃

Barium Oxide

BaO

Beryllium Oxide

BeO

Bismuth(III) Oxide

Bi₂O₃

Boron Trioxide

B₂O₃

Cadmium Oxide

CdO

Calcium Oxide

CaO

Carbon Dioxide

CO₂

Carbon Monoxide

CO

Frequently Asked Questions

What is Copper(II) Oxide?
Copper(II) Oxide (CuO) is a oxide compound with the IUPAC name Copper(II) oxide.
What is the molecular weight of Copper(II) Oxide?
Copper(II) Oxide has a molar mass of 79.545 g/mol.
What state is Copper(II) Oxide at room temperature?
Copper(II) Oxide is a solid at room temperature.
Is Copper(II) Oxide organic or inorganic?
Copper(II) Oxide is classified as an inorganic compound.
What elements make up Copper(II) Oxide?
Copper(II) Oxide (CuO) is composed of Oxygen (O), Copper (Cu).