Thermodynamics of the formation of Sm3+-ethylenediamine- N, N'-disuccinic acid complexes in aqueous solutions at 298.15 K
Abstract
The thermodynamic parameters of the formation of the complexes of ethylenediamine- N, N'-disuccinic acid (H4Y) with Sm3+ ion are determined by means of calorimetry and measuring pH at 298.15 K and ionic strengths of 0.5, 1.0, and 1.5 (KNO3). The values of log K, Δr G, Δr H, and Δr S are calculated for the formation of SmY- and SmHY complexes at fixed and zero values of ionic strength. The resulting values are interpreted.
- Publication:
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Russian Journal of Physical Chemistry A
- Pub Date:
- December 2014
- DOI:
- 10.1134/S003602441412019X
- Bibcode:
- 2014RJPCA..88.2091L