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On the Complexation of Some Divalent Metal Cations with Beauvericin in Nitrobenzene Saturated with Water

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Published/Copyright: April 18, 2012
Zeitschrift für Physikalische Chemie
From the journal Zeitschrift für Physikalische Chemie Volume 226 Issue 4

Abstract

From extraction experiments and γ-activity measurements, the exchange extraction constants corresponding to the general equilibrium M2+(aq)+1·Sr2+(nb)⇆1·M2+(nb)+ Sr2+(aq) taking place in the two–phase water-nitrobenzene system (M2+ߙ=ߙMg2+, Ca2+, Ba2+, Pb2+, Zn2+, Mn2+; 1ߙ=ߙbeauvericin; aqߙߙ=ߙaqueous phase, nbߙ=ߙnitrobenzene phase) were determined. Moreover, the stability constants of the 1·M2+ complexes in water-saturated nitrobenzene were calculated; they were found to increase in the cation series of Mg2+, Zn2+< Mn2+< Pb2+< Ba2+< Ca2+.

Keywords: Divalent Cations; Beauvericin; Complexation; Extraction and Stability Constants; Water-Nitrobenzene System
* Correspondence address: University of West Bohemia, Faculty of Applied Sciences, Husova 11, 306 14 Pilsen, Tschechische Republik,
Published Online: 2012-4-18
Published in Print: 2012-4-1

© by Oldenbourg Wissenschaftsverlag, Pilsen, Germany

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  1. Role of Vibrational Excitation of the Adlayer in 'Precursor-Mediated' Sticking Probabilities of CO on Metal Surfaces: A Kinetic Model
  2. SnO2 Promoted by Praseodymia: Novel Catalysts for CO Oxidation
  3. Inelastic Neutron Scattering (INS) Study of Low Frequency Vibrations of Acid K Salt of (E)-2-Hydroxyimino-2-Cyanoacetic Acid Ethyl Ester and its Phase Situation by DSC Method
  4. Physicochemical Study of Bile Salt-Polymer Micellar Aggregates
  5. On the Complexation of Some Divalent Metal Cations with Beauvericin in Nitrobenzene Saturated with Water
https://doi.org/10.1524/zpch.2012.0205
Keywords for this article
Divalent Cations; Beauvericin; Complexation; Extraction and Stability Constants; Water-Nitrobenzene System

Articles in the same Issue

  1. Role of Vibrational Excitation of the Adlayer in 'Precursor-Mediated' Sticking Probabilities of CO on Metal Surfaces: A Kinetic Model
  2. SnO2 Promoted by Praseodymia: Novel Catalysts for CO Oxidation
  3. Inelastic Neutron Scattering (INS) Study of Low Frequency Vibrations of Acid K Salt of (E)-2-Hydroxyimino-2-Cyanoacetic Acid Ethyl Ester and its Phase Situation by DSC Method
  4. Physicochemical Study of Bile Salt-Polymer Micellar Aggregates
  5. On the Complexation of Some Divalent Metal Cations with Beauvericin in Nitrobenzene Saturated with Water
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