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Ion-Exchange Processes M(II) → Fe(III) and Fe(III) → M(II) in Metal Hexacyanoferrate(II) Gelatin-Immobilized Matrices (M = Mn, Co, Ni, Cu, Zn, Cd)

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Abstract

Ion-exchange reactions M2+ → Fe3+ and Fe3+ → M2+ (M = Mn, Co, Ni, Cu, Zn, Cd) were studied in metal(II) hexacyanoferrate(II) gelatin-immobilized matrices M2[Fe(CN)6] in contact with aqueous FeCl3 solutions and Fe4[Fe(CN)6]3 in contact with aqueous MCl2 solutions. It was shown that in both cases, M2+ was replaced by Fe3+ and Fe3+ was replaced by M2+ to some extent, but no complete replacement was observed in the M2[Fe(CN)6]–FeCl3 or Fe4[Fe(CN)6]3–MCl2 systems under study. No electrophilic substitution Fe3+ → Mn2+ was found to occur in any noticeable degree during the contact of Fe4[Fe(CN)6]3 with aqueous MnCl2 solutions even when this contact occurred for 1 h and longer.

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Authors and Affiliations

  1. Kazan State Technological University, Kazan, Tatarstan, Russia

    O. V. Mikhailov

  2. Kazan State Power Engineering University, Kazan, Tatarstan, Russia

    T. B. Tatarintseva

  3. Central Research Institute of Nonmetal Mineral Geology, Kazan, Tatarstan, Russia

    N. I. Naumkina & T. Z. Lygina

Authors
  1. O. V. Mikhailov
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  2. T. B. Tatarintseva
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  3. N. I. Naumkina
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  4. T. Z. Lygina
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Mikhailov, O.V., Tatarintseva, T.B., Naumkina, N.I. et al. Ion-Exchange Processes M(II) → Fe(III) and Fe(III) → M(II) in Metal Hexacyanoferrate(II) Gelatin-Immobilized Matrices (M = Mn, Co, Ni, Cu, Zn, Cd). Russian Journal of Coordination Chemistry 30, 639–647 (2004). https://doi.org/10.1023/B:RUCO.0000040724.53882.90

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  • DOI: https://doi.org/10.1023/B:RUCO.0000040724.53882.90

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