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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. It is a green solid that occurs in nature as the mineral malachite.
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 ...
Chalcanthum – the residue produced by strongly roasting blue vitriol (copper sulfate); it is composed mostly of cupric oxide. Chalk – a rock composed of porous biogenic calcium carbonate. CaCO 3; Chrome green – chromic oxide and cobalt oxide. Chrome orange – chrome yellow and chrome red. Chrome red – basic lead chromate – PbCrO 4 +PbO
It is prepared by dissolving copper(II) hydroxide in an aqueous solution of ammonia. It forms an azure solution. Evaporation of these solutions leaves light blue residue of copper hydroxide, reflecting the lability of the copper-ammonia bonding. If conducted under a stream of ammonia, then deep blue needle-like crystals of the tetrammine form.
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 ...
OAKLAND, Calif. (Reuters) -A federal judge said on Tuesday that parts of Elon Musk's lawsuit against OpenAI to halt its conversion to a for-profit entity might go to trial, adding that the Tesla ...
Copper naphthenate is classified by EPA as a general use (i.e., a non-restricted use) pesticide by virtue of its relatively benign toxicity profile. [5] Copper naphthenate is the only non-restricted use wood preservative in widespread use for "heavy duty" commodities such as utility poles, railroad crossties and timbers, pilings and fence posts.