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Copper(I) Oxide (Cu₂O) / Copper(II) Oxide (CuO)

Copper(I) Oxide (Cu₂O), or Cuprous oxide, is a yellow to red or brown powder that is toxic and whose color varies based on the size of the particles. Copper(I) oxide has semiconductor properties.

Copper(II) Oxide (CuO), or Cupric Oxide, is a black to brown/black amorphous crystalline powder that is insoluble in water and ethanol.
Typical Chemical Properties

Copper(I) Oxide:
Total Cu= 88%, Cu₂O= 98%, and Cu₂O + Free Cu= 98.5%

Copper(II) Oxide:
Total Cu= 78.5% min., CuO= 98% min., and Cu₂O= 3% max.

Purity from 99% to 99.999%

Typical Applications

Copper(I) Oxide is used as a pigment in red ceramic porcelain glazes and red glasses. It is also used as an anti-fouling agent and germicide/fungicide for crops. It is incorporated into marine ship bottom paint to prevent the growth of algae and shellfish.

Copper(II) Oxide is used as a pigment for coloring glass, ceramics, porcelain, and artificial gems. It is used in batteries and electrodes as well as in antifouling paints. Other uses include electroplating, as a welding flux for bronze, producing rayons, sulfur removal from oils, as a polish for optical glass, and as a catalyst. It also is used to prepare various copper compounds.

Packaging Options

50 lb. bags, drums, and bulk bags

Classification

Copper(I) Oxide (Cu₂O) / Copper(II) Oxide (CuO) TSCA (SARA Title III) Status: Unknown
For further information; please call the EPA Office of Chemical Safety and Pollution Prevention (OCSPP) at 202-564-2902.
Copper(I) oxide CAS Number: 1317-39-1
Copper(II) oxide CAS Number: 1317-38-0
Cuprous Oxide Harmonized Tariff Schedule (HTS) Number: 28255020

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Specifications Available

  • Copper(I) Oxide (Cu₂O) / Copper(II) Oxide (CuO) - Copper(I) Oxide (Cu₂O)
  • Copper(I) Oxide (Cu₂O) / Copper(II) Oxide (CuO) - Copper(II) Oxide (CuO)

Select Copper(I) Oxide (Cu₂O)

  • Powder (-200 Mesh, purple)
  • Powder (-200 Mesh, red)

Select Copper(II) Oxide (CuO)

  • Evaporation Materials
  • Powder (-200 Mesh, black)
  • Powder (-325 Mesh, black)

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