Copper oxide black

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A brownish-black amorphous powder. Black copper oxide occurs in nature as the mineral tenorite (triclinic crystals) and paramelaconite (cubic crystals). It is used as a pigment in glass, artificial gems, enamels, and ceramics. Black copper oxide is also used as an abrasive for polishing optical glass and as a flux in copper metallurgy.

Synonyms and Related Terms

copper (II) oxide; cupric oxide; melaconite; copper monoxide; tenorite; paramelaconite

Chemical structure

Copper oxide black.jpg

Other Properties

Soluble in acids. Slightly soluble in water.

Composition CuO
CAS 1317-38-0
Melting Point 1026 (dec)
Density 6.315
Molecular Weight mol. wt. = 79.55

Hazards and Safety

Toxic by ingestion and inhalation. Skin contact causes irritation.

Mallinckrodt Baker: MSDS