Modeling and Thermodynamic Values of Complex Equilibrium of Cobalt(II) with Diethylenetriaminepentaacetic Acid in Aqueous Solution

The paper reports the study of the complex formation of cobalt (II) with diethylenetriaminepentaacetic acid (DTPA, H5L) based on spectrophotometric (SF) and potentiometric data (pH). Complexes of different compositions were found, and equilibrium constants, as well as the stability constants of thes...

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Autores principales:	Ghusoon Faidhi Hameed, Fawzi Yahya Wadday, Nahla Shakir Salman
Formato:	article
Lenguaje:	EN
Publicado:	Department of Chemistry, Universitas Gadjah Mada 2021
Materias:	cobalt stability constants spectrophotometer potentiometer Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/329aae38ad74408db5c5fa2c5629aa94
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spelling	oai:doaj.org-article:329aae38ad74408db5c5fa2c5629aa942021-12-02T18:25:31ZModeling and Thermodynamic Values of Complex Equilibrium of Cobalt(II) with Diethylenetriaminepentaacetic Acid in Aqueous Solution1411-94202460-157810.22146/ijc.59169https://doaj.org/article/329aae38ad74408db5c5fa2c5629aa942021-01-01T00:00:00Zhttps://jurnal.ugm.ac.id/ijc/article/view/59169https://doaj.org/toc/1411-9420https://doaj.org/toc/2460-1578The paper reports the study of the complex formation of cobalt (II) with diethylenetriaminepentaacetic acid (DTPA, H5L) based on spectrophotometric (SF) and potentiometric data (pH). Complexes of different compositions were found, and equilibrium constants, as well as the stability constants of these complexes, were determined. Accumulation of complexes in proportion is calculated based on the acidity of the medium. The experimental data have been carried out by using mathematical models to assess the solution's possible existence with a wide spectrum of complex particles and to point out those which are quite sufficient to copy the experimental data. In addition, thermodynamic parameters (ΔG°, ΔH°, and ΔS°) for the studying complexes were calculated according to the values of stability constant (KST) at 25 °C obtained from the temperature dependence of stability constant by using van’t Hoff equation.Ghusoon Faidhi HameedFawzi Yahya WaddayNahla Shakir SalmanDepartment of Chemistry, Universitas Gadjah Madaarticlecobaltstability constantsspectrophotometerpotentiometerChemistryQD1-999ENIndonesian Journal of Chemistry, Vol 21, Iss 3, Pp 644-650 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	cobalt stability constants spectrophotometer potentiometer Chemistry QD1-999
spellingShingle	cobalt stability constants spectrophotometer potentiometer Chemistry QD1-999 Ghusoon Faidhi Hameed Fawzi Yahya Wadday Nahla Shakir Salman Modeling and Thermodynamic Values of Complex Equilibrium of Cobalt(II) with Diethylenetriaminepentaacetic Acid in Aqueous Solution
description	The paper reports the study of the complex formation of cobalt (II) with diethylenetriaminepentaacetic acid (DTPA, H5L) based on spectrophotometric (SF) and potentiometric data (pH). Complexes of different compositions were found, and equilibrium constants, as well as the stability constants of these complexes, were determined. Accumulation of complexes in proportion is calculated based on the acidity of the medium. The experimental data have been carried out by using mathematical models to assess the solution's possible existence with a wide spectrum of complex particles and to point out those which are quite sufficient to copy the experimental data. In addition, thermodynamic parameters (ΔG°, ΔH°, and ΔS°) for the studying complexes were calculated according to the values of stability constant (KST) at 25 °C obtained from the temperature dependence of stability constant by using van’t Hoff equation.
format	article
author	Ghusoon Faidhi Hameed Fawzi Yahya Wadday Nahla Shakir Salman
author_facet	Ghusoon Faidhi Hameed Fawzi Yahya Wadday Nahla Shakir Salman
author_sort	Ghusoon Faidhi Hameed
title	Modeling and Thermodynamic Values of Complex Equilibrium of Cobalt(II) with Diethylenetriaminepentaacetic Acid in Aqueous Solution
title_short	Modeling and Thermodynamic Values of Complex Equilibrium of Cobalt(II) with Diethylenetriaminepentaacetic Acid in Aqueous Solution
title_full	Modeling and Thermodynamic Values of Complex Equilibrium of Cobalt(II) with Diethylenetriaminepentaacetic Acid in Aqueous Solution
title_fullStr	Modeling and Thermodynamic Values of Complex Equilibrium of Cobalt(II) with Diethylenetriaminepentaacetic Acid in Aqueous Solution
title_full_unstemmed	Modeling and Thermodynamic Values of Complex Equilibrium of Cobalt(II) with Diethylenetriaminepentaacetic Acid in Aqueous Solution
title_sort	modeling and thermodynamic values of complex equilibrium of cobalt(ii) with diethylenetriaminepentaacetic acid in aqueous solution
publisher	Department of Chemistry, Universitas Gadjah Mada
publishDate	2021
url	https://doaj.org/article/329aae38ad74408db5c5fa2c5629aa94
work_keys_str_mv	AT ghusoonfaidhihameed modelingandthermodynamicvaluesofcomplexequilibriumofcobaltiiwithdiethylenetriaminepentaaceticacidinaqueoussolution AT fawziyahyawadday modelingandthermodynamicvaluesofcomplexequilibriumofcobaltiiwithdiethylenetriaminepentaaceticacidinaqueoussolution AT nahlashakirsalman modelingandthermodynamicvaluesofcomplexequilibriumofcobaltiiwithdiethylenetriaminepentaaceticacidinaqueoussolution
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Modeling and Thermodynamic Values of Complex Equilibrium of Cobalt(II) with Diethylenetriaminepentaacetic Acid in Aqueous Solution

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