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Merck
CN

61200

Copper(II) oxide

puriss. p.a., ≥99.0% (RT), powder

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
UNSPSC Code:
12352303
PubChem Substance ID:
329759391
EC Number:
215-269-1
MDL number:
MFCD00010979

Key Documents

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InChI key

QPLDLSVMHZLSFG-UHFFFAOYSA-N

InChI

1S/Cu.O

SMILES string

[Cu]=O

grade

puriss. p.a.

assay

≥99.0% (RT)

form

powder

impurities

≤0.002% total nitrogen (N), ≤0.02% insoluble matter in HCl, ≤0.05% total sulfur (as SO4)

anion traces

chloride (Cl-): ≤50 mg/kg

cation traces

Ca: ≤100 mg/kg, Cd: ≤10 mg/kg, Co: ≤10 mg/kg, Cr: ≤50 mg/kg, Fe: ≤500 mg/kg, K: ≤50 mg/kg, Mg: ≤100 mg/kg, Mn: ≤10 mg/kg, Na: ≤500 mg/kg, Ni: ≤50 mg/kg, Pb: ≤500 mg/kg, Zn: ≤100 mg/kg

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General description

Copper(II) oxide (Cupric oxide, CuO) contains copper in the +2 valence state. A refinement of its crystal structure has been described by single crystal X-ray diffraction studies. CuO is useful for the fabrication of solid state gas sensors. It can be synthesized from copper oxalate.

Application

Copper(II) oxide may be used in the preparation of imidazole and single crystals of CuO.

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

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
BCBS8347V

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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)
Eagleson M.
Concise Encyclopedia Chemistry, 523-523 (1994)
Copper (II) oxide nanowires for p-type conductometric NH3 sensing.
Shao F, et al.
Applied Surface Science, 311, 177-181 (2014)
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)
Sumanta Kumar Meher et al.
Nanoscale, 5(5), 2089-2099 (2013-02-06)
In the quest to enhance the selectivity and sensitivity of novel structured metal oxides for electrochemical non-enzymatic sensing of glucose, we report here a green synthesis of unique sandwich-structured CuO on a large scale under microwave mediated homogeneous precipitation conditions.
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