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1.02769

Sigma-Aldrich

Copper(II) oxide

Technipur®

Synonym(s):

Copper monoxide, Copper oxide, Cupric oxide

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About This Item

Empirical Formula (Hill Notation):
CuO
CAS Number:
1317-38-0
Molecular Weight:
79.55
MDL number:
MFCD00010979
UNSPSC Code:
12352303
NACRES:
NA.21

Quality Level

200

pH

7 (20 °C, 50 g/L in H2O, slurry)

mp

1326 °C (decomposition)

SMILES string

[Cu]=O

InChI

1S/Cu.O

InChI key

QPLDLSVMHZLSFG-UHFFFAOYSA-N

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General description

Copper(II) oxide (CuO) is a transition metal oxide and a p-type semiconductor commonly used as thermal conducting material, catalyst, gas sensor, magnetic storage media and varistors. It has a narrow bandgap of 1.2 eV and is used for optoelectronics, semiconductor and solar cell applications.

Application

Copper(II) oxide can be used as:
  • A dielectric material applicable in the microelectronic industry.
  • A hydrogen sulfide gas sensing material in biogas plants and natural gas facilities.
  • An induced-multiferroic material having a high TC temperature applicable in the manufacturing of superconductors.

Legal Information

Technipur is a registered trademark of Merck KGaA, Darmstadt, Germany

Pictograms

Environment
GHS09

Signal Word

Warning

Hazard Statements

H410

Precautionary Statements

P273 - P391 - P501

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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CuO and Co3O4 nanoparticles: synthesis, characterizations, and Raman spectroscopy
Rashad M, et al.
Journal of Nanomaterials, 2013 (2013)
Copper (II) oxide as a giant dielectric material
Sarkar S, et al.
Applied Physics Letters, 89(21), 212905-212905 (2006)
Specific, trace gas induced phase transition in copper (II) oxide for highly selective gas sensing
Kneer J, et al.
Applied Physics Letters, 105(7), 073509-073509 (2014)
Cupric oxide as an induced-multiferroic with high-TC
Kimura T, et al.
Nature Materials, 7(4), 291-294 (2008)

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