Dicopper oxide

Uses1. It can be used for coating of ship bottom coating, pesticide germicide, and glaze and used for copper oxide rectifier, photocell, electroplating and copper salt production. 2. It can be used in the manufacture of antifouling paint (used to kill low-level marine animals), pesticides, and various copper salts, analytical reagents and red glass. It can also be used in the rectifier plating in the electrical industry. It can also be used as the coloring agent for ceramic and enamel. 3. It can be used as analytical reagents and germicide. 4. It can be used as the reducing agent for determination of nitrogen content in azo compounds, red glaze, electroplating, germicide, red glass, ship bottom paint, plant seeds sterilization and catalyst.

DescriptionA widely used copper fungicide. It has a low aqueous solubility and a low volatility. As a heavy metal, copper itself will not degrade in the environment. It is moderately toxic to mammals and most biodiversity.

UsesCopper (I) oxide is used as red pigment for glass; in antifouling paints; fungicide.

UsesRed pigment for glass and ceramic glazes, and as a catalystCopper(I) oxide is used in antifouling, marine paint, brazing paste, antifungal treatment for plant seeds. Used as a hydrogen scavenger in copper brass and bronze and high grade lubricants. Finds uses in glass and ceramic pigments, ferrite magnets, catalyst in organic synthesis, dyes and dye intermediates and as catalysts.

UsesFungicide; antiseptic for fishnets; in antifouling paints for marine use; in photoelectric cells; as red pigment for glass, ceramic glazes; in brazing pastes; in rectifiers; as catalyst.

General DescriptionCopper(I) oxide is a weak inorganic base that can be used to activate halides for nucleophilic substitution reaction. It is also used in decarboxylation and cyclo condensation reactions.

PreparationCopper(I) oxide decomposes above 1800°C but can be prepared by heating copper metal in air above 1030°C. To prevent further oxidation, the material must be cooled in an inert atmosphere. Lower temperatures may be used to produce the oxide if the material is blended with a reducing agent such as carbon and heated to 750°C in an inert atmosphere. The product must be stabilized with isophthalic acid or pine oil (Ayers, 1953). A particularly stable copper(I) oxide can be prepared by blending copper powder and cupric oxide in stoichiometric amounts and heating to 800-900°C. Lower temperatures can be used if ammonia or certain ammonium salts are added to the blend (Day, 1969; Drapeau and Johnson, 1956; Drapeau and Johnson, 1959).

DefinitionFor the native ore see cuprite.

DefinitionAn insoluble red powder prepared by the heating of copper with copper(II) oxide or the reduction of an alkaline solution of copper(II) sulfate. Copper(I) oxide is easily reduced by hydrogen when heated; it is oxidized to copper(II) oxide when heated in air. It is used in the glass industry. Copper( I) oxide undergoes disproportionation in acid solutions, producing copper(II) ions and copper. The oxide will dissolve in concentrated hydrochloric acid due to the formation of the complex ion [CuCl2]-. Copper(I) oxide is a covalent solid.