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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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The original article prior to December 2014, was called CuCO 3, but all of the information contained in it actually referred to the basic mixed salt which is why the article name was changed to refer to the basic copper carbonate. (The name basic copper carbonate-- the word basic indicates that the salt, (e.g malachite form) contains hydroxide ...
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