Copper! 11 acetate sulfate

There are four basic sulfates that can be identified by potentiometric titration using sodium carbonate (39,40) langite [1318-78-17, CuSO -3Cu(OH)2 H2 i brochantite [12068-81 -4] CuSO -3Cu(OH)2 antedite [12019-54-4] CuSO -2Cu(OH)2 and CuS0 -Cu0-2Cu(0H)2-xH20. The basic copper(II) sulfate that is available commercially is known as the tribasic copper sulfate [12068-81 ] CuS04-3Cu(0H)2, which occurs as the green monoclinic mineral brochantite. This material is essentially insoluble in water, but dissolves readily in cold dilute mineral acids, warm acetic acid, and ammonia solutions. 

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. 

On the other hand, ligands that are very strongly held, (e.g., ethylenediamine) exert a blocking effect and reduce the reactivity. The order of reactivity of different copper(II) complexes was found to be acetate > sulfate > chloride > aquo > gly-dnate > ethylenediamine. 

The bishydrazones of the 1,2-diketones from inositols have also been converted into triazoles.222,223 The conversion of arylosazones into the corresponding osotriazoles requires the presence of an oxidant, and it is obvious that simple removal of aniline from the osazone, as suggested by the equation, is not involved. In addition to copper(II) sulfate, the reagent most commonly used, other oxidizing heavy-metal salts, such as ferric sulfate and chloride,224 and mercuric acetate,223 have been used, as well as halogens225 and nitro-sulfonates.226 The osazone acetates are converted into osotriazoles by nitrous acid,227 which decomposes the unacetylated osazones to the aldosuloses228 and the osazone formazans are cyclized with warm... 

Cumene Hydroperoxide Copper Acetate Copper Arsenite Copper Bromide Copper Chloride Copper Fluoioborate Copper Arsenite Copper Cyanide Copper Nitrate Copper Oxalate Copper Sulfate... 

Synonym Neatsfoot Oil Necatorina Nechexane Neutral Ahhonium Pluoride Neutral Anhydrous Calcium Hypochlorite Neutral Lead Acetate Neutral Nicotine Sulfate Neutral Potassium Chromate Neutral Sodium Chromatetanhydrous Neutral Verdigris Nickel Acetate Nickel Acetate Tetrahyorate Nickel Ammonium Sulfate Nickel Ammonium Sulfate Hexahydrate Nickel Bromide Nickel Bromide Trihydrate Nickel Carbonyl Nickel Chloride Nickel Chloride Nickel Cyanide Nickel Iiu Fluoborate Nickel Fluoroborate Solution Nickel Fluoroborate Nickel Formate Nickel Formate Dihyorate Nickel Nitrate Nickel Nitrate Hexahydrate Nickel Sulfate Nickel Tetracarbokyl Nickelous Acetate Nickelous Sulfate Nicotine Nicotine Sulfate Nifos Nitralin Nitram O-Nitraniline P-Nitraniline Nitric Acid Nitric Acid, Aluminum Salt Nitric Acid, Iron (111) Salt Compound Name Oil Neatsfoot Carbon Tetrachloride Neohexane Ammonium Fluoride Calcium Hypochlorite Lead Acetate Nicotine Sulfate Potassium Chromate Sodium Chromate Copper Acetate Nickel Acetate Nickel Acetate Nickel Ammonium Sulfate Nickel Ammonium Sulfate Nickel Bromide Nickel Bromide Nickel Carbonyl Nickel Chloride Nickel Chloride Nickel Cyanide Nickel Fluoroborate Nickel Fluoroborate Nickel Fluoroborate Nickel Formate Nickel Formate Nickel Nitrate Nickel Nitrate Nickel Sulfate Nickel Carbonyl Nickel Acetate Nickel Sulfate Nicotine Nicotine Sulfate Tetraethyl Pyrophosphate Nitralin Ammonium Nitrate 2-Nitroaniline 4-Nitroaniline Nitric Acid Aluminum Nitrate Ferric Nitrate... 

Obviously, the condensation of a carbonyl group with a diol produces 1 mol of water and because of the reversibility of the reaction (hydrolysis of the acetal), yields are lowered if this by-product is not removed. For such a purpose, there are essentially two possibilities (1) the continuous removal of water by an azeotropic distillation with a solvent mainly chosen for its boiling point (petroleum ether, benzene, toluene, xylene, for instance) (2) the presence of a desiccant (the most commonly taken is copper(II)sulfate, but sodium sulfate or molecular sieves have been also used) molecules known to be water scavengers, such as ortho-esters or dialkylsulfites, have also been suggested, even if they are seldom used in carbohydrate chemistry. 

Important in this quite general strategy is that, for practically all instances, die reaction is under thermodynamic control, and the control of the stoichiometry is extremely difficult It follows that only the more stable acetals are produced (see Sec. H.B) and usually multiacetals are obtained if several hydroxyl groups are available within die same molecule. This has been a major concern in acetalation reactions in neutral conditions. For instance, use of copper(II)sulfate either in acetone alone or in N, N-dunethylformamide without any additional catalyst leads to acetals with structures that differ from those resulting from reactions in the presence of an acid The reaction depends on the temperature [31] however, the strict neutrality of a medium in which copper(II)sulfate and polyols are interacting can be questioned. 

Palladium(II) chloride-Copper(II) chloride, 235 Phenylthiocopper, 209 Phosphomolybdic acid-Potassium di-chromate-Copper(II) sulfate, 248 Sodium borohydride-Copper(II) acetate, 279... 

Davis (1943), 60 (Ruggieri s Russian Fire -see under Copper Acetate) 70 (Lilac light Bengal fire Basic Cu sulfate 6, K chlorate 26,... 

Ruggieri s Russian fire, as his son later described it, consisted of crystallized copper acetate 4 parts, copper sulfate 2 parts, and ammonium chloride 1 part,13 all finely pulverized and mixed with alcohol, and placed upon cotton wick attached to spikes upon the thin metal pieces which were the leaves of the palm tree. The resulting display would not be impressive according to modern standards. 

Like zinc, copper and its compounds have been used since ancient times, with copper dust, acetate, sulfate and carbonate reported in Egyptian and Hindu prescriptions, and also used by Hippocrates and Galen. Copper arsenite was used in 1892 for anemia and debility. Copper sulfate was recommended to strengthen man, to stimulate the heart and blood vessels, to increase deposition of fat and to treat anemia. The adult requirement is 1.25 mg Cud-1, about one third of which is absorbed. TPN should be supplemented with 0.5—1.5 mg d-1 (adults) and 20 gg (kg weight)-1 d-1 (children). 

Hydrolysis of the 2-acetylthioxy derivative (103 X = S) in aqueous methanol gave the 2-mercapto derivative, which was then desulfurized to 4-oxo-4H-pyrido[l,2- ]pyrimidine in 3"0 aqueous ammonia in the presence of Raney nickel.167 The same product was obtained in poor yield when 2-hydrazino-4-oxo-4f/-pyrido[l,2-u]pyrimidine was treated with a 15"/ solution of copper(ll) sulfate in aqueous acetic acid.255... 

Intramolecular cycloaddition of a diazo ketone to a cyclopropene. Rhodium) II) acetate is markedly superior to copper or copper(II) sulfate as the catalyst for cyclopropanation of l,4-diacetoxy-2-butyne with /-butyl diazoacetatc. The product (1) was converted by known steps into the diazo ketone 2. In the presence of rhodium(II) acetate, 2 undergoes intramolecular cycloaddition to the cyclopropene double bond to give the highly strained tricyclic pentanone derivative 3 in 30% yield. C oppcr catalysts are less efficient for this conversion. 

Carboxy-l -ethyl)-phenyl Methyl Tellurium3 A mixture containing 7 2 g (25 mmol) of 2-(2 -carboxy-l -ethenyl)-phenyl methyl tellurium, 50 g (1 mol) of hydrazine hydrate, 150 m/of DMSO, 2 drops of saturated aqueous copper(II) sulfate solution, and 2 drops of acetic acid is cooled to 0°. This mixture is stirred and a suspension of 30 g (0.14 mol) of sodium periodate in 250 ml of water is added slowly. The mixture is hydrolyzed with acid, the precipitate is filtered off and dissolved in aqueous sodium carbonate solution. Charcoal is added to the solution which is then filtered, acidified, and the precipitate is collected yield 5.8 g (80%) m.p. 105° (from toluene). 

Although the blue hydrates of copper(II) sulfate, copper(II) nitrate, and eopper(II) acetate are common reagents, the anhydrous bromide and chloride, both of which are deep brown, are less familiar. The latter two... 

Copper compounds (copper acetate or cupric acetate, copper sulfate or cupric... 

The oxidative decarboxylation of aliphatic carboxylic acids is best achieved by treatment of the acid with LTA in benzene, in the presence of a catalytic amount of copper(II) acetate. The latter serves to trap the radical intermediate and so bring about elimination, possibly through a six-membered transition state. Primary carboxylic acids lead to terminal alkenes, indicating that carbocations are probably not involved. The reaction has been reviewed. The synthesis of an optically pure derivative of L-vinylglycine from L-aspartic acid (equation 14) is illustrative. The same transformation has also been effected with sodium persulfate and catalytic quantities of silver nitrate and copper(II) sulfate, and with the combination of iodosylbenzene diacetate and copper(II) acetate. ... 

Type IV includes chiral phases that usually interact with the enantiomeric analytes through the formation of metal complexes. There are usually used to separate amino acid enantiomers. These types of phases are also called ligand exchange phases. The transient diastereomeric complexes are ternary metal complexes between a transitional metal (usually Cu +), an amino acid enantiomeric analyte, and another compound immobilized on the CSP which is able to undergo complexation with the transitional metal (see also the ligand exchange section. Section 22.5). The two enantiomers are separated based on the difference in the stability constant of the two diastereomeric species. The mobile phases used to separate such enantiomeric analytes are usually aqueous solutions of copper (II) salts such as copper sulfate or copper acetate. To modulate the retention, several parameters—such as the pH of the mobile phase, the concentration of the copper ion, or the addition of an organic modifier such as acetonitrile or methanol in the mobile phase—can be varied. 

C(S,v(c-DIOLS Copper(II) sulfate-Pyridine. ThalUum(l) acetate. 

Inorganic copper compounds include cuprous oxide cupric oxide copper hydroxide copper carbonate basic copper ammonium carbonate copper acetate copper sulfate copper sulfate, tribasic (Bordeau Mixture) copper oxychloride copper silicate copper lime dust and copper potassium sulfide. Figure 5.10 shows a package of Kocide 101, copper containing products. 

Benzoin can be oxidized to the a-diketone, benzii, very efficiently by nitric acid or by copper(II) sulfate in pyridine. On oxidation with sodium dichromate in acetic acid the yield is lower because some material is converted into benzaldehyde by cleavage of the bond between two oxidized carbon atoms and activated by both phenyl groups (a). Similarly, hydrobenzoin on oxidation with dichromate or permanganate yields chiefly benzaldehyde and only a trace of benzii (b). 

Copper acetate, Cu(OCOCHj)2 or Cu(0C0CH3)2 H20, resembles copper sulfate in its oxidizing properties and is used for the oxidative coupling of terminal acetylenes [53, 357] and for the conversion of acyloins into a-diketones [353, 359]. Its presence favorably affects the acetoxylation of toluenes to benzyl acetates by sodium persulfate [360]. 

Needless to say, the fixation of inorganic chemicals in wood by interaction with the wood substrate and extractives is beneficial and greatly improves the durability of these preservatives. Contrarily, other interactions provide less desirable reactions. For example, under certain circumstances copper and zinc can become so tightly bound to the wood that their efficacy as wood preservatives is reduced. This result occurs when copper acetate and zinc acetate are used to treat wood (53). In this form, these elements are salts of acetic acid and they form ion-exchange bonds with the wood components that are stable in the weak acid environment and cannot be ionized readily by water. Conversely, this reduction in efficacy does not occur when copper sulfate and zinc chloride are used because they are salts of strong acids and the pH of the environment prevents insolubilization of these elements by the wood. 

Blackwell and Carr investigated the ligand exchange chromatography of free amino acids on copper-loaded zirconia. It was shown that the use of Lewis base buffers in this system improved the operating efficiency. Acetate, sulfate, fluoride, and phosphate are the effective competing ions. 

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