Thermodynamics of cobalt(II) complexation with trimethylenediamine-N,N,N′,N′-tetraethanoic acid

Author： Gridchin S.   Pereu D.  

Publisher： MAIK Nauka/Interperiodica

ISSN： 1070-3284

Source： Russian Journal of Coordination Chemistry, Vol.32, Iss.10, 2006-10, pp. : 765-769

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Abstract

The stability constants of cobalt(II) trimethylenediaminetetraacetates at 298.15 K and I = 0.1, 0.5, and 1.0 (KNO3) are determined by the potentiometric titration method. The heat effects of formation of the cobalt(II) complexonate at 298.15 K and I = 0.1, 0.5, and 0.1 (KNO3) are measured by the direct calorimetric method. The standard thermodynamic characteristics of the reactions under study are calculated. The results obtained are compared with the corresponding data for related compounds.

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