산화구리(Ⅰ)

Copper(I) oxide, Cu2O, occurs in nature as the red or reddish brown mineral cuprite in a cubic or octahedral crystalline morphology. Synthetic materials variously appear as yellow (somewhat pyrophoric), orange, red, or purple powders, depending on particle size. Copper(I) oxide is stable in dry air, but slowly oxidizes to copper(II) oxide, [1317-38-0], in moist air. It is virtually insoluble in water but dissolves in complexing acids such as HCl and in aqueous ammonia to form copper(I) complexes. In dilute sulfuric and nitric acids, disproportionation to the soluble copper(II) salts and copper powder obtains.

개요산화구리(Ⅰ)는 화학식 Cu2O로 아산화구리·산화제일구리라고도 하며, 천연으로는 적동석으로서 존재한다. 암적색 또는 등황색 결정성 가루이다. 구리의 붉은 녹은 이것에 해당하며, 입자의 크기에 따라 빛깔이 달라진다.

용도1 : 분석 시약 및 살균제로 사용할 수 있습니다. 2 : 아조 화합물, 적색 유약, 전기 도금, 살균제, 적색 유리, 선박 바닥 페인트, 식물 종자 살균 및 촉매에서 질소 함량을 측정하기위한 환원제로 사용할 수 있습니다.

용도Fungicide; 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.

일반 설명Copper(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.

Copper(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).