Copperfl chloride

From other experiments in which the effects of mass transfer have been analyzed, it appears that the following systems are mass transfer limited uranyl nitrate extraction by TBP, copper extraction by sodium-loaded DEHPA.19 and extraction of zinc and copperfll) chlorides by TIOA.20 Zinc extraction by dithizone in carbon tetrachloride is mass transfer limited at high zinc concentrations but kineticaily controlled at low zinc levels.21 Ferric ion extractions are repoted to be slow because of its sluggish llgand-excbenge kinetics.22 Extraction of ferric chloride by TIOA, for example, is controlled by a slow heterogeneous reaction.21... 

Alioi658 CCRIS 6883 Coclor Copper bichloride Copper chloride Copper chloride (CuCl2) Copper dichloride Copper(2- ) chloride Copper(ll) chloride Copperfll) chloride (1 2) Coppertrace Cupric chloride Cupric dichloride EINECS 231-210-2 HSDB 259 ... 

Palladium(Il) chloride-copperfll) chloride-oxygen. 18,283 19,261-262 20,294 Oxidation. As an extension of the lactone synthesis from 1-trimethylsilyl-... 

At about the same time it was also prepared in low yield by the action of copperfll) chloride on biphenyl-2,2 -bismagnesium bromide [133] ... 

When a,o>-diynes are oxidised in aqueous ethanolic solution by oxygen in the presence of copperfl) chloride and ammonium chloride... 

Recall from the beginning of this section that zinc metal reacts with aqueous copper ions to form aqueous zinc ions and copper metal. One way that this reaction might be carried out is for zinc metal to be immersed in a solution of copperfll) chloride (CUCI2), as depicted in Figure 4.5. The... 

A concentrated aqueous copperfll) chloride solution is bright green in color. When diluted with water, the solution becomes light blue. Explain. 

Arylzincs are converted to symmetrical biaryls by copper(II) halides [16], as well as by A/-chlorosuccinimide [17]. The method is more important than the homo-coupling of aryllithiums since, in a number of cases, higher yields were obtained, presumably because of more effective transmetallation of intermediate diarylzincs to copper(ll). In this manner, tetra-or/Ao-bromobiphenyl (434) was lithiated with n-BuLi, and subsequently converted to the zinc species 435, stable at low temperatures. The latter is reacted with copperfll) chloride to biphenylene 436 in 72% yield, accompanied with formation of intermolecular coupling product 437 in very small amount [16], Scheme 8. In contrast, the direct homo-coupling of bis-lithiated compound 434 with copper(II) chloride furnished the compound 436 in only 15% yield, with predominant formation of intermolecular coupling product 437 in 61 % yield [16]. 

Copperfll) chloride is a brown solid, melting at 498° with some decomposition to copperfi) chloride. The compound is hygroscopic and deliquescent. 

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