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Merck
CN

241741

Copper(II) oxide

ACS reagent, ≥99.0%

Synonym(s):

Cupric oxide

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About This Item

Empirical Formula (Hill Notation):
CuO
CAS Number:
Molecular Weight:
79.55
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352303
EC Number:
215-269-1
MDL number:
Assay:
≥99.0%
Grade:
ACS reagent
Form:
powder
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grade

ACS reagent

Quality Level

assay

≥99.0%

form

powder

reaction suitability

reagent type: catalyst
core: copper

impurities

Free alkali, passes test, ≤0.002% N compounds, ≤0.01% C compounds, ≤0.02% S compounds, ≤0.02% insol. dil. HCl

anion traces

chloride (Cl-): ≤0.005%, sulfate (SO42-): ≤0.02%

cation traces

Ca: ≤0.01%, Fe: ≤0.05%, K: ≤0.02%, Na: ≤0.05%

SMILES string

[Cu]=O

InChI

1S/Cu.O

InChI key

QPLDLSVMHZLSFG-UHFFFAOYSA-N

General description

Copper (II) oxide is one of the two stable oxides of copper. Cupric oxide is a precursor to many copper-containing products and chemicals. It is used as a pigment, fungicide, and antirust protection agent for marine paints. CuO possesses notable and admirable characteristics like abundance and affordability, ease of manufacturing, scalability, non-toxicity, antioxidant properties, and semiconducting characteristics.

Application

Copper (II) oxide is used:,As a catalyst in the synthesis of 2-Aryl- and 2-alkenyl-1,3,4-oxadiazoles from treating 1,3,4-oxadiazoles with aryl or alkenyl halides.


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pictograms

Environment

signalword

Warning

hcodes

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1

Storage Class

13 - Non Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable



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A refinement of the crystal structure of copper (II) oxide with a discussion of some exceptional esd's.
?sbrink S and Norrby LJ.
Acta Crystallographica Section B, Structural Science, 26(1), 8-15 (1970)
Copper (II) oxide nanowires for p-type conductometric NH3 sensing.
Shao F, et al.
Applied Surface Science, 311, 177-181 (2014)
Eagleson M.
Concise Encyclopedia Chemistry, 523-523 (1994)



Global Trade Item Number

SKUGTIN
241741-100G04061825411071