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Merck

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:
1317-38-0
Molecular Weight:
79.55
NACRES:
NA.21
PubChem Substance ID:
329752591
UNSPSC Code:
12352303
EC Number:
215-269-1
MDL number:
MFCD00010979
Assay:
≥99.0%
Grade:
ACS reagent
Form:
powder

Key Documents

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InChI key

QPLDLSVMHZLSFG-UHFFFAOYSA-N

InChI

1S/Cu.O

SMILES string

[Cu]=O

grade

ACS reagent

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%

Quality Level

200

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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.

pictograms

Environment
GHS09

signalword

Warning

hcodes

H410

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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Certificates of Analysis (COA)

Lot/Batch Number
MKCX7442
MKCV9265
MKCS7595
MKCQ9901
MKCQ0684

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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)
DSC kinetics of the thermal decomposition of copper (II) oxalate by isoconversional and maximum rate (peak) methods.
Muraleedharan K and Kripa S.
Journal of Thermal Analysis and Calorimetry, 115(2), 1969-1978 (2014)
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)
Lisha Zhou et al.
Nanoscale, 5(4), 1564-1569 (2013-01-18)
Stable Cu(2)O nanocrystals of around 3 nm were uniformly and densely grown on functionalized graphene sheets (FGS), which act as molecular templates instead of surfactants for controlled nucleation; the distribution density of nanocrystals can be easily controlled by FGS with
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