copper(II) oxide

Also known as copper monoxide, copper oxide, Cu(II) oxide, cupric oxide

chemical compound

OverviewAI-generated

Copper(II) oxide is a chemical compound with the formula CuO. It has a density of 6.4 and a mass of 78.924512. The substance melts at 1446 and boils at 2000. Its decomposition point is 1879, and it has a vapor pressure of 0. The IUPAC name for the compound is copper oxygen(2-).

Safety data indicates an immediately dangerous to life or health level of 100. The time-weighted average exposure limit is 0.1. The compound has a charge of 0, with one hydrogen bond acceptor and no hydrogen bond donors. Its topological polar surface area is 1.

Synthesized by Vinony from 24 facts across 4 sources: Wikidata, PubMed, PubChem, Vinony graph. Generated from structured data (not the Wikipedia text) and checked against those facts — may still contain errors.

In the Vinony graph

Within Vinony's link graph, copper(II) oxide is referenced by 401 other articles, and connects out to zirconium, monoclinic crystal system and copper monosulfide.

It sits within the topics Chembox having GHS data, Chemical articles with multiple compound IDs and Copper(II) compounds.

Its subject is documented across 42 Wikipedia language editions.

Chemical data

Formula: CuO
Molecular weight: 79.55 g/mol
IUPAC name: copper oxygen(2-)
SMILES: [O-2].[Cu+2]
InChIKey: KKCXRELNMOYFLS-UHFFFAOYSA-N
Polar surface area: 1 Å²
H-bond donors: 0
H-bond acceptors: 1
Formal charge: 0

via PubChem

Research

2,420 papers

Copper oxide nanoparticles as delivery vehicles for different Pt(II)-drugs: experimental and theoretical evaluation.Journal of materials chemistry. B · 2025
Copper(II) Oxide Nanoparticles Embedded within a PEDOT Matrix for Hydrogen Peroxide Electrochemical Sensing.Sensors (Basel, Switzerland) · 2022
Ascorbate Oxidase Mimetic Activity of Copper(II) Oxide Nanoparticles.Chembiochem : a European journal of chemical biology · 2020
Nanosized copper(ii) oxide/silica for catalytic generation of nitric oxide from S-nitrosothiols.Journal of materials chemistry. B · 2020
Determination of the Influence of Various Factors on the Character of Surface Functionalization of Copper(I) and Copper(II) Oxide Nanosensors with Phenylboronic Acid Derivatives.Langmuir : the ACS journal of surfaces and colloids · 2022

via PubMed

Wikidata facts

Has part: copper
Mass: 78.924512
Image: CopperIIoxide.jpg

Show 11 more facts

Commons category: Copper(II) oxide
chemical formula: CuO
density: 6.4
NIOSH Pocket Guide ID: 0151
immediately dangerous to life or health: 100
decomposition point: 1879
vapor pressure: 0
time-weighted average exposure limit: 0.1
boiling point: 2000
canonical SMILES: O=[Cu]
melting point: 1446

Sources (4)

via Wikidata · CC0

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Encyclopedic overview

Copper(II) oxide or cupric oxide is an inorganic compound with the formula CuO. A black solid, it is one of the two stable oxides of copper, the other being Cu2O or copper(I) oxide (cuprous oxide). As a mineral, it is known as tenorite, or sometimes black copper. It is a product of copper mining and the precursor to many other copper-containing products and chemical compounds.

Structure and physical properties

Excerpted from Wikipedia’s “copper(II) oxide” article, available under the CC BY-SA 4.0 licence.