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copper oxide

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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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? Mentioned in ? References in periodicals archive
 
Copper oxide has been detected in the copper containing alloys of NBS Standard Reference Material (SRM) 482.
Copper oxide precipitates in NBS Standard Reference Material 482 by Bright, David S. / Journal of Research of the National Institute of Standards and Technology
Physicists hotly debate why certain copper oxide crystals can conduct electricity without resistance, or superconduct, at temperatures far higher than conventional superconductors can.
Magnetism piece fits no-resistance puzzle. (Physics) by Science News
In conclusion, both copper sulfate (a soluble compound) and copper oxide (an insoluble compound) have comparable effects on the induction of gastrointestinal manifestations, implying that similar levels of ionic copper were present in the stomach.
Gastrointestinal effects associated with soluble and insoluble copper ... by Uauy, Ricardo / Environmental Health Perspectives
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