Cupric carbonate

Cupri-. cupric, copper(II). -azetst, n. cupric acetate, copper(II) acetate, -carbonat, n. cupric carbonate, copper(II) carbonate, -chlorid, n. cupric chloride, copper(II) chloride. -hydroxyd, n. cupric hydroxide, cop-per(II) hydroxide. -ion, n. cupric ion, copper(II) ion. -ozalat, n. cupric oxalate, copper(II) oxalate, -oxyd, n. cupric oxide, copper(II) oxide. -salz, n. cupric salt, copper(II) salt, -suifat, n. cupric sulfate. copper(II) sulfate, -sulfid, n. cupric sulfide, copper(II) sulfide, -verbihdung, /. cupric compound, copper(II) compound, -wein-saure, /. cupritartaric acid. 

Furthermore we found that kasugamycin forms a chelate compound with basic cupric carbonate (7), which is stable to acid and unstable to heat and base. This evidence together with the results obtained above strongly supports the amidine structure (13) for kasugamycin. Finally the amidine compound was successfully prepared by the reaction of kasuganobiosamine with the diethyl ester of oxalimidic acid (14) and... 

Recently the patina formed in the atmosphere on the roof of the Stockholm City Hall was analyzed. Several components of the patina were identified, including brochantite (CuSC>4- 3Cu(OH)2), antlerite (Cu3(OH)4-SC>4), and basic cupric carbonate (Cu2C03(0H)ftH20). At the Rodin Museum in Philadelphia, active corrosion of Rodin s The Thinker was ascribed in 1992 to primarily brochan-... 

In order to balance mineral intake, the following minerals were used in place of the usual mineral mix (% of diet) potassium chloride, 0.32 magnesium oxide, 0.084 manganous carbonate, 0.0123 ferric nitrate, 0.021 zinc carbonate, 0.0056 cupric carbonate, 0.0011 potassium iodate, 0.0004 sodium selenite, 0.00003 chromium potassium sulfate, 0.00193. 

Copper(I) carbonate (Cu + CO Cu Oj) is known as cuprous carbonate since coppers ion is +1 copper(II) carbonate (Cu + CO — CuCO ) is known as cupric carbonate, which is also known as the green copper mineral malachite, used in pigments, as an insecticide, as a cosmetic astringent, and as a plant fungicide to prevent smut. 

The stabilities of the triammino-cuprous halides are almost identical, and the dissociation pressures of the ammino-cupric halides lie very near together.6 The stabilities of hexammino-copper halides is also almost identical the compounds are very readily decomposed by water, and hence do not seem to be formed in aqueous solution. Ammino-derivatives of cupric carbonate, cupric acetate, cupric oxide, and cuprous cyanide and thiocyanate are known. These have the general characteristics of the ammines already described. 

SODIUM CARBONATE SOLUTION GIVES BLUE-GREEN CUPRIC CARBONATE PRECIPITATE. 

Concentration at 70° C. of a solution of cupric carbonate in an excess of arsenic acid yields pale-blue leaflets of cupric monohydrogen orthoarsenate, CuHAs04.H20.6 When boiled with water this yields a basic salt of composition Cu3(As04)2.Cu0.H20.7... 

Cupric Oxide or Black Copper Oxide, CuO, mw 79.54, blk cubic crysts (Paramelaconite, d 6.40) or blk triclinic crysts (Tenorite, d 6.45)>mP 1026° (decomp) insol in w sol in acids, KCN Amm chloride. Can be prepd by the ignition of cupric carbonate or nitrate (Refs 1-8)... 

Attempted catalysis. A number of experiments were carried out to test the possible catalytic activity of substances such as potassium carbonate, cupric carbonate, ammonium chloride, ammonium sulfate, potassium silicate, boron phosphate, and silica gel, but in no case was there any indication that the reaction could be catalyzed. 

Copper, being a noble metal, has good resistance to corrosion. A thin adherent film of cuprous oxide and cupric carbonate is formed due to corrosion. Passivation is not a prominent process. The dissolved copper in solution affects the electrode potential such that the increase in velocity of the solution in contact with the metal results in increasing attack of the metal. Thus cuprous oxide is produced under dynamic flow of the solution. The thickness of the oxide film is about 500 nm. 

Cupric bromate, Cu(Br03)2.—Slow concentration of a solution of cupric carbonate in bromic acid yields the hexahydrate,15 with density 2-583.18... 

Cupric orthophosphate, Cu3(P04)2,8H20.—The orthophosphate is prepared by the interaction of disodium hydrogen phosphate and excess of cupric sulphate,6 or by heating an aqueous solution of ortho-phosphoric acid with cupric carbonate at 70° C.7 It is a blue, crystalline powder, almost insoluble in water. 

Cupric carbonates.—The normal salt has not been prepared.12 Malachite, CuC03,Cu(0H)2, occurs in monoclinic crystals, density 3 7 to 4. It has been produced artificially.13 Azurite, 2CuC08,Cu(0H)2, forms monoclinic crystals, density 8-5 to 8 88. It has been obtained by a laboratory method.14... 

Cupric thiocyanate, Cu(CNS)2.—The thiocyanate is formed as a velvet-black precipitate by adding basic cupric carbonate or cupric hydroxide to a solution of thiocyanic acid, and by the interaction of potassium thiocyanate and concentrated solutions of cupric salts.8 It is very unstable, being transformed by contact with water into cuprous thiocyanate.9 With ammonium hydroxide it yields blue, aeicular crystals of ammonio-cupric ihiocyanaie, Cu(CNS)2,2NHs, also produced by dissolving cupric hydroxide in ammonium thiocyanate.10... 

Cupric i-urlHiiiHU, basic, C u( () , C u(()H)j. Mol. wt. 221,11. Suppliers B, H, MC B. The reagent is prepared by adding an equivalent amount of a solution of sodium carbonate to a solution of cupric sulfate and washing the precipitate until nearly free from sulfate ion. The wet basic cupric carbonate is used without drying or weighing. In the presence of ammonium hydroxide it effects the oxidation ... 

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