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Sigma-Aldrich

Copper(I) oxide

≥99.99% trace metals basis, anhydrous

Synonym(s):

Cuprous oxide

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About This Item

Linear Formula:
Cu2O
CAS Number:
1317-39-1
Molecular Weight:
143.09
EC Number:
215-270-7
MDL number:
MFCD00010974
UNSPSC Code:
12352302
PubChem Substance ID:
57651589
NACRES:
NA.21

grade

anhydrous

Quality Level

100

assay

≥99.99% trace metals basis

form

powder

density

6 g/mL at 25 °C (lit.)

SMILES string

[Cu]O[Cu]

InChI

1S/2Cu.O

InChI key

BERDEBHAJNAUOM-UHFFFAOYSA-N

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General description

Copper(I) oxide is a weak inorganic base that can be used to activate halides for nucleophilic substitution reaction. It is also used in decarboxylation and cyclo condensation reactions.

Application

Copper(I) oxide can be used:
  • As a precursor to prepare nanoparticles, nanocrystals, and quantum dots for various applications.
  • To catalyze the N-arylation of azoles under aqueous conditions using phase-transfer catalyst.
  • To prepare reduced graphene oxide-based nano copper composites applicable as a sensor for the detection of dopamine.
  • As a copper precursor to prepare Cu2O-TiO2 nanoparticle-based composite materials with aluminosilicate geopolymers applicable in the removal of organic pollutants from water.

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Description
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Danger

Hazard Classifications

Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Faceshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
0000260599
0000260587
0000200998
0000267347
0000281329

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Investigation of copper (I) oxide quantum dots by near-edge X-ray absorption fine structure spectroscopy
Nachimuthu P, et al.
Chemistry of Materials, 15(20), 3939-3946 (2003)
Copper(I) oxide
e-EROS Encyclopedia of Reagents for Organic Synthesis. (2009)
Copper (I) oxide nanocrystals-one step synthesis, characterization, formation mechanism, and photocatalytic properties
Singhal A, et al.
European Journal of Inorganic Chemistry, 2013(14), 2640-2651 (2013)
Synthesis and properties of novel photoactive composites of P25 titanium dioxide and copper (I) oxide with inorganic polymers
Falah M and MacKenzie KJD
Ceramics International, 41(10), 13702-13708 (2015)
A ligand-free copper (I) oxide catalyzed strategy for the N-arylation of azoles in water
Yong FF, et al.
Tetrahedron Letters, 52(11), 1161-1164 (2011)
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