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copper(II) oxide
(redirected from Black copper oxide)

    Also found in: Wikipedia 0.23 sec.

copper(II) oxide

Black solid that is readily reduced to copper by carbon, carbon monoxide, or hydrogen if heated with any of these:

CuO + C → Cu + CO

CuO + CO → Cu + CO2

CuO + H2 → Cu + H2O

It is usually made in the laboratory by heating copper(II) carbonate, nitrate, or hydroxide:

2Cu(NO3)2 → 2CuO + 4NO2 + O2

Copper(II) oxide is a typical basic oxide, dissolving readily in most dilute acids.
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Seraphim, Treminco's consulting geologist for the El Magistral Project, reports that within the trenches sampled, the copper appears mainly as a black copper oxide (tenorite).
Treminco Resources Ltd. reports significant copper oxide deposit on ... by Business Wire
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