rézoxidból

Rézoxidból is the Hungarian term for copper oxide. Copper oxide refers to chemical compounds composed of copper and oxygen. The most common forms are copper(I) oxide (Cu₂O) and copper(II) oxide (CuO).

Copper(I) oxide, also known as cuprous oxide, is a red solid. It is insoluble in water but soluble in acids and ammonia. It occurs naturally as the mineral cuprite. Copper(I) oxide is used as a pigment in glass and ceramics, as a fungicide, and in antifouling paints. It also has semiconductor properties and is explored for use in solar cells and other electronic applications.

Copper(II) oxide, also known as cupric oxide, is a black solid. It is also insoluble in water but soluble in acids, forming blue or green solutions. It is the more stable oxide of copper. Copper(II) oxide is used in the production of copper salts, as a pigment, in batteries, and as a catalyst in various chemical reactions. It is also used in glass manufacturing to impart a turquoise or green color.

Both forms of copper oxide can be produced through various chemical processes, typically involving the oxidation of copper metal at elevated temperatures or through chemical precipitation reactions. The specific properties and applications depend on the oxidation state of the copper.