Equilibrium Studies of Complexes between N-Acetylcysteine and Divalent Metal Ions in Aqueous Solutions.

Santoso, Shella Permatasari and Chandra, Ivon Kusmijo and Soetaredjo, Felycia Edi and Angkawijaya, Artik Elisa and Ju, Yi-Hsu (2014) Equilibrium Studies of Complexes between N-Acetylcysteine and Divalent Metal Ions in Aqueous Solutions. Journal of Chemical & Engineering Data, 59 (5). pp. 1661-1666. ISSN 15205134, 00219568

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Official URL: https://pubs.acs.org/doi/10.1021/je500112y

Abstract

The complex formations of N-acetylcysteine with divalent transition metals Cu2+, Zn2+, Ni2+, Co2+, Mn2+ have been investigated in aqueous solution of 0.15 mol•dm−3 NaCl at 310.15 K by the potentiometric method. The protonation and stability constant of the complexes were obtained based on nonlinear least-squares curve fitting performed by the HYPERQUAD2008 program along with an estimation using Bjerrum−Calvin half integral method. Distribution diagrams of complex species at certain pH range were generated by the HySS2009 simulation program. From optimization and thermochemical analysis by using the Gaussian09W program, it showed that the ligand formed a six-membered chelate ring with the investigated metal ions via its sulfur and oxygen donor atoms.

Item Type: Article
Subjects: Engineering > Chemical Engineering
Divisions: Journal Publication
Depositing User: F.X. Hadi
Date Deposited: 23 Aug 2018 03:42
Last Modified: 11 Oct 2018 03:32
URI: http://repository.wima.ac.id/id/eprint/16040

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