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Merck

1.02769

Copper(II) oxide

Technipur®

Synonym(s):

Copper monoxide, Copper oxide, Cupric oxide

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About This Item

Linear Formula:
CuO
CAS Number:
Molecular Weight:
79.55
UNSPSC Code:
12352303
NACRES:
NA.21
MDL number:
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Quality Segment

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

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


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Environment

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Warning

hcodes

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable



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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