Polyhydroxysäuren als Komplexbildner |
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Authors: | E Bottari |
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Institution: | 1. Istituto di chimica analitica dell'Università, Napoli, Italien
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Abstract: | The reaction of mucic acid (H6 Mu) with Cobalt(II) and Nickel(II) ions has been studied in 1.0M-Na+(NO 3 ? ) ionic medium at 25° C using a glass electrode. The e.m.f. data in the range 8≦?log H+]≦10 are explained by assuming $$\begin{gathered} Me^{2 + } + H_4 Mu^{2 - } \rightleftharpoons MeH_3 Mu^ - + H^ + \beta ''_1 \hfill \\ Me^{2 + } + H_4 Mu^{2 - } \rightleftharpoons MeH_2 Mu^{2 - } + 2 H^ + \beta ''_2 \hfill \\ \end{gathered}$$ with equilibrium constants log β′1 = — 9.36; — 9.34; log β′2 = — 18.11; — 18.08 for Co(II) and Ni(II) resp. |
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