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94737

Sigma-Aldrich

Copper(II) oxide

≥99.0% (RT), granular

Synonym(s):

Cupric oxide

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About This Item

Empirical Formula (Hill Notation):
CuO
CAS Number:
Molecular Weight:
79.55
EC Number:
MDL number:
UNSPSC Code:
12352303
PubChem Substance ID:
assay:
≥99.0% (RT)

assay

≥99.0% (RT)

form

granular

particle size

3-10 mm

SMILES string

[Cu]=O

InChI

1S/Cu.O

InChI key

QPLDLSVMHZLSFG-UHFFFAOYSA-N

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General description

Copper(II) oxide (Cupric oxide, CuO) contains copper in the +2 valence state.[1] CuO is useful for the fabrication of solid state gas sensors.[2] It can be synthesized from copper oxalate.[3]

Application

Copper(II) oxide may be used in the preparation of imidazole[4] and single crystals of CuO.[1]

pictograms

Environment

signalword

Warning

hcodes

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1

Storage Class

13 - Non Combustible Solids

wgk_germany

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)
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)
Hongwen Huang et al.
Nanoscale, 5(5), 1785-1788 (2013-01-31)
A facile, flexible and large-scale technique was proposed to prepare a CuO-CNT 3D-network composite with the aid of electrostatic interactions in aqueous solution. The composite greatly improves the electrochemical performance. At a rate of 0.1 C, the cycling discharge capacity

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