The thermodynamic characteristics of complex formation of Cd2+ with N,N-Bis(carboxymethyl)aspartic acid in aqueous solutions at 298.15 K

The thermodynamic characteristics of complex formation of Cd2+ with N,N-Bis(carboxymethyl)aspartic acid in aqueous solutions at 298.15 K

The equilibrium constants and heats of formation of complexes of N,N-bis(carboxymethyl)aspartic acid (H 4 Y) with Cd 2+ ions at 298.15 K and ionic strengths of 0.2, 0.5, and 1.0 (KNO 3 ) were determined by potentiometric titration and calorimetrically. The thermodynamic characteristics of formation...

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Veröffentlicht in:Russian Journal of Physical Chemistry A 2011, Vol.85 (1), p.41-44
Hauptverfasser: Lytkin, A. I., Chernyavskaya, N. V., Litvinenko, V. E.
Format: Artikel
Sprache:eng
Schlagworte:
Chemical Thermodynamics and Thermochemistry
Chemistry
Chemistry and Materials Science
Physical Chemistry
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Zusammenfassung:The equilibrium constants and heats of formation of complexes of N,N-bis(carboxymethyl)aspartic acid (H 4 Y) with Cd 2+ ions at 298.15 K and ionic strengths of 0.2, 0.5, and 1.0 (KNO 3 ) were determined by potentiometric titration and calorimetrically. The thermodynamic characteristics of formation of the CdY 2− complex at fixed and zero ionic strength values were calculated. The values obtained were interpreted.
ISSN:0036-0244
1531-863X
DOI:10.1134/S0036024410121027