Cupric oxide powder (CuO) is a black amphoteric coppe […]
Cupric oxide powder (CuO) is a black amphoteric copper oxide with a certain degree of hygroscopicity. Cupric oxide powder is insoluble in water and ethanol, but soluble in acid, ammonium chloride, and potassium cyanide solutions, and slowly soluble in ammonia solution. Cupric oxide powder is usually used as an oxidant. Carbon, hydrogen, or carbon monoxide can reduce cupric oxide powder to copper. It is mainly used in the production of rayon, glaze, and enamel, ceramics, batteries, petroleum desulfurizes, pesticides, hydrogen production, catalysts, green glass, etc. Cupric oxide powder can be produced by heating copper in an oxygen environment.
As an oxidant, cupric oxide powder can undergo a reduction reaction with a reducing agent. Charcoal, carbon monoxide, hydrogen, ammonia, and active metals such as magnesium and iron can reduce cupric oxide powder to produce copper X (oxide). But in general, these reduction reactions have no economic value, and most of them occur in the laboratory.