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Vol. 28 No. 6 (2016): Vol 28 Issue 6

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Determination of Stability Constants of Mixed Ligand Complexes of Tricine and Amino Acids with Cd(II) by Potentiometric Titration Method

https://doi.org/10.14233/ajchem.2016.19636
Samar O. Aljazzar
Department of Chemistry, College of Science, Princess Nourah Bint Abdul Rahman University, Riyadh, Saudi Arabia
Amani S. Alturiqi
Department of Chemistry, College of Science, Princess Nourah Bint Abdul Rahman University, Riyadh, Saudi Arabia
Salhah D. Al-Qahtani
Department of Chemistry, College of Science, Princess Nourah Bint Abdul Rahman University, Riyadh, Saudi Arabia
Lamia A. Albedair
Department of Chemistry, College of Science, Princess Nourah Bint Abdul Rahman University, Riyadh, Saudi Arabia
Reda A. Ammar
Department of Chemistry, College of Science, Princess Nourah Bint Abdul Rahman University, Riyadh, Saudi Arabia

Corresponding Author(s) : Reda A. Ammar

dr_reda06@yahoo.com

Asian Journal of Chemistry, Vol. 28 No. 6 (2016): Vol 28 Issue 6

Abstract

A potentiometric titration technique has been used to determine the stability constants for the various complexes of Cd(II) with tricine (T) as primary ligand and amino acids (L) as secondary ligand in aqueous solution at 25 °C and ionic strength of I = 0.1 M (NaNO3). The relative stabilities of the ternary complexes are compared with those of the corresponding binary complexes and explained in view of their Δ log K values. Finally, species distributions in solution for all complexes were also evaluated.

Keywords

Tricine Amino acids Potentiometric studies Stability constants
(1)
Aljazzar, S. O.; Alturiqi, A. S.; Al-Qahtani, S. D.; Albedair, L. A.; Ammar, R. A. Determination of Stability Constants of Mixed Ligand Complexes of Tricine and Amino Acids With Cd(II) by Potentiometric Titration Method. ajc 2016, 28, 1234-1238.
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