Copper (II) oxide, additionally known together cupric oxide or the mineral tenorite, is an inorganic compound used as precursor or raw material in the manufacturing of chemical commodities that save on computer copper.

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Formula and also structure: Copper (II) sulfate chemical formula is CuO and its molar massive is 79.55 g mol-1. The molecule is developed by one Cu2+ cation bond come a oxygen anion O2-. The cystral structure is a monoclinic crystal device with a copper atom coordinated by 4 oxygen ions. Its chemical structure can be written as below, in the usual representations offered for organic molecules.

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Occurrence: Copper (II) oxide is uncovered in nature together being part of the mineral tenorite and it is extracted v the classic mining techniques.

Preparation: back copper (II) oxide have the right to be discovered in nature, that is no extracted in a large scale, for this reason that commercial synthesis that this link is required. The CuO is prepared through the reaction that copper metal and oxygen gas in ~ high temperature >500 °C:

2 Cu + O2 → 2 CuO

Physical properties: Copper (II) oxide is a black color to dark brown powder. The oxide thickness is 6.31 g mL-1. The melting suggest is 1326 °C , while the boiling suggest is 2000 °C. The is not soluble in water, although it is dissolve in ammonium chloride and potassium cyanide solutions. It is additionally insoluble in ethanol.

Chemical properties: due to the volume of copper (II) oxide to act as an oxidizing agent, it have the right to be supplied in the treatment of hazardous products as the really toxic cyanide or halogenated hydrocarbons. The residual water of the reactions, that incorporate copper metal, have the right to be getting rid of in a safe way. The main reactions are:

C6H5OH + 14CuO → 6CO2 + 3H2O + 14Cu

C6Cl5OH + 2H2O + 9CuO → 6CO2 + 5HCl + 9Cu

Uses: Cupric oxide is supplied in the manufacturing of copper salts as the copper sulfates or copper nitrates. That is supplied in the manufacturing of dyes, pigments and paints because of the characteristics blue and green color associated with the Cu2+ cation. That is additionally used in some batteries as the lithium-copper batteries.

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Health impacts / safety and security hazards: Copper (II) oxide is not toxic come humans and animals in short concentration. In part cases, it have the right to be uncovered in water. However in high concentration, it can be toxic for the aquatic life. It deserve to explode when heated through with powdered aluminum, anilinium perchlorate, hydrogen or magnesium.