Abstract
The effect of the oxidation state of the metal on the solubility was analyzed using the example of CuClx-MCl-H2O (x = 1, 2; M = Li-Cs, NH4) ternary systems. The prevalence of acido complex formation is responsible for an essential similarity of the solubility isotherms: the presence of crystallization branches of complex salts and salting-in (or weak salting-out) of copper(I) and (II) chlorides, that increases in the order LiCl < NaCl < KCl < CsCl. The different stability of copper(I) and (II) chloride complexes results in that the chemical individuality of alkali metal cations is differently reflected in the shape of the solubility isotherms: The stronger complex formation in copper(I) systems results in leveling of this effect and the weaker complex formation with copper(II), in its differentiation.
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Original Russian Text © L.V. Stepakova, M.Yu. Skripkin, L.V. Chernykh, I.M. Gusev, 2006, published in Zhurnal Obshchei Khimii, 2006, Vol. 76, No. 4, pp. 540–544.
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Stepakova, L.V., Skripkin, M.Y., Chernykh, L.V. et al. Effect of the oxidation state of copper on the solution-solid phase equilibria in CuClx-MCl-H2O systems. Russ J Gen Chem 76, 512–516 (2006). https://doi.org/10.1134/S1070363206040037
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DOI: https://doi.org/10.1134/S1070363206040037