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Basic copper carbonate is a chemical compound, more properly called copper(II) carbonate hydroxide. It can be classified as a coordination polymer or a salt . It consists of copper(II) bonded to carbonate and hydroxide with formula Cu 2 (CO 3 )(OH) 2 .
3, such as mixing solutions of copper(II) sulfate CuSO 4 and sodium carbonate in ambient conditions, yield instead a basic carbonate and CO 2, due to the great affinity of the Cu 2+ ion for the hydroxide anion HO −. [5] Thermal decomposition of the basic carbonate at atmospheric pressure yields copper(II) oxide rather than the carbonate.
Still other sources describe it as basic copper carbonate (Cu 2 CO 3 (OH) 2), [19] or as Cu(CH 3 CO 2) 2 ·(Cu(OH) 2) n where n varies from 0 to 3. [20] In marine environments, the main copper salt is tribasic copper chloride (Cu 2 (OH) 3 Cl). [18] [19] Overall, variations of verdigris can be divided into two groups: basic verdigris and neutral ...
Basic copper carbonate (the "copper carbonate" of commerce), actually a copper carbonate hydroxide; which may be either Cu 2 CO 3 (OH) 2: the green mineral malachite, verdigris, the pigment "green verditer" or "mountain green" Cu 3 (CO 3) 2 (OH) 2: the blue mineral azurite, and the pigment "blue verditer" or "mountain blue" Lapis armenus, a ...
Copper is a chemical element with the symbol Cu (from Latin: cuprum) and the atomic number of 29. It is easily recognisable, due to its distinct red-orange color . Copper also has a range of different organic and inorganic salts , having varying oxidation states ranging from (0,I) to (III).
It can be formed by heating copper in air at around 300–800 °C: 2 Cu + O 2 → 2 CuO. For laboratory uses, copper(II) oxide is conveniently prepared by pyrolysis of copper(II) nitrate or basic copper(II) carbonate: [4] 2 Cu(NO 3) 2 → 2 CuO + 4 NO 2 + O 2 (180°C) Cu 2 (OH) 2 CO 3 → 2 CuO + CO 2 + H 2 O. Dehydration of cupric hydroxide ...
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