Abstract

The heats of formation of complexes of L-serine and doubly charged cadmium ions are determined by calorimetry. The heat effects of the reaction between an amino acid solution and a cadmium(II) solution and the respective heats of dilution of cadmium nitrate solution are measured at temperatures of 288.15, 298.15, and 308.15 K and ionic strengths of 0.25, 0.50, and 0.75 against the background of KNO3. The standard thermodynamic characteristics of complexation are calculated. Standard enthalpies of formation of mono-, bis-, and tris-coordinated complexes of cadmium(II) in an aqueous solution are found.

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