On the Formation of Complex Ions Applied in Analytical Chemistry. VIII : Studies on Complexbilities of Ferric Compounds by the Use of Radioisotope Element
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Applying the ion exchange method reported by J. Schubert, the complexbilities of ferric tartrate, citrate and malonate were measured by the use of the radioisotope element of Fe^<59> and the ion exchange resin of Amberlite 1R-120. The hydrogen ion concentrations of the solution were measured by the use of the quinhydrone electrode. All the measurements were made at 25℃ and the following results were obtained : ferric tartrate, K=3.1×10^<-8> citrate, K=2.2×10^<-5> ; malonate, K=2.5×10^<-10>.
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