Cargando…

Potentiometric studies of complex equlibria of Ca(II), Mg(II) and Zn(II) with 5-sulphosalicylic acid in cationic micelles of CTAB

Formation of metal ligand complex species of 5-sulphosalicylic acid with Ca(II), Mg(II) and Zn(II) metal ions have been studied potentiometrically in various composition (0.0, 0.5, 1.0. 1.5, 2.0, and 2.5% w/v) of cetyltrimethylammonium bromide (CTAB). The study has been carried out at 303 K temperat...

Descripción completa

Detalles Bibliográficos
Autores principales: Ramanaiah, M., Seetharam, P., Balakrishna, M., Raju, B. Rama
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6690561/
https://www.ncbi.nlm.nih.gov/pubmed/31417969
http://dx.doi.org/10.1016/j.heliyon.2019.e02157
_version_ 1783443208932425728
author Ramanaiah, M.
Seetharam, P.
Balakrishna, M.
Raju, B. Rama
author_facet Ramanaiah, M.
Seetharam, P.
Balakrishna, M.
Raju, B. Rama
author_sort Ramanaiah, M.
collection PubMed
description Formation of metal ligand complex species of 5-sulphosalicylic acid with Ca(II), Mg(II) and Zn(II) metal ions have been studied potentiometrically in various composition (0.0, 0.5, 1.0. 1.5, 2.0, and 2.5% w/v) of cetyltrimethylammonium bromide (CTAB). The study has been carried out at 303 K temperature and maintaining 0.16 mol dm(−3) ionic strength using NaCl. The dynamic species belongs to 5-sulphosalicylic acid are LH(2)(-) and LH(2-). The best fit of complex speciation has been preferred on basis of statistical parameters like skewness, χ(2), Kurtosis and crystallographic R-factor. ML(2)H, ML(2)H(2) and ML(3)H(3) type complex were formed by the complexation of 5-sulphosalicylic acid with the metal ions. The change in stability of complex species with composition of the surfactant has been illustrated on the basis electrostatic grounds. Distribution of chemical species with respect to pH and various compositions medium and probable complex equilibria are also studied.
format Online
Article
Text
id pubmed-6690561
institution National Center for Biotechnology Information
language English
publishDate 2019
publisher Elsevier
record_format MEDLINE/PubMed
spelling pubmed-66905612019-08-15 Potentiometric studies of complex equlibria of Ca(II), Mg(II) and Zn(II) with 5-sulphosalicylic acid in cationic micelles of CTAB Ramanaiah, M. Seetharam, P. Balakrishna, M. Raju, B. Rama Heliyon Article Formation of metal ligand complex species of 5-sulphosalicylic acid with Ca(II), Mg(II) and Zn(II) metal ions have been studied potentiometrically in various composition (0.0, 0.5, 1.0. 1.5, 2.0, and 2.5% w/v) of cetyltrimethylammonium bromide (CTAB). The study has been carried out at 303 K temperature and maintaining 0.16 mol dm(−3) ionic strength using NaCl. The dynamic species belongs to 5-sulphosalicylic acid are LH(2)(-) and LH(2-). The best fit of complex speciation has been preferred on basis of statistical parameters like skewness, χ(2), Kurtosis and crystallographic R-factor. ML(2)H, ML(2)H(2) and ML(3)H(3) type complex were formed by the complexation of 5-sulphosalicylic acid with the metal ions. The change in stability of complex species with composition of the surfactant has been illustrated on the basis electrostatic grounds. Distribution of chemical species with respect to pH and various compositions medium and probable complex equilibria are also studied. Elsevier 2019-08-02 /pmc/articles/PMC6690561/ /pubmed/31417969 http://dx.doi.org/10.1016/j.heliyon.2019.e02157 Text en © 2019 The Authors. Published by Elsevier Ltd. http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Article
Ramanaiah, M.
Seetharam, P.
Balakrishna, M.
Raju, B. Rama
Potentiometric studies of complex equlibria of Ca(II), Mg(II) and Zn(II) with 5-sulphosalicylic acid in cationic micelles of CTAB
title Potentiometric studies of complex equlibria of Ca(II), Mg(II) and Zn(II) with 5-sulphosalicylic acid in cationic micelles of CTAB
title_full Potentiometric studies of complex equlibria of Ca(II), Mg(II) and Zn(II) with 5-sulphosalicylic acid in cationic micelles of CTAB
title_fullStr Potentiometric studies of complex equlibria of Ca(II), Mg(II) and Zn(II) with 5-sulphosalicylic acid in cationic micelles of CTAB
title_full_unstemmed Potentiometric studies of complex equlibria of Ca(II), Mg(II) and Zn(II) with 5-sulphosalicylic acid in cationic micelles of CTAB
title_short Potentiometric studies of complex equlibria of Ca(II), Mg(II) and Zn(II) with 5-sulphosalicylic acid in cationic micelles of CTAB
title_sort potentiometric studies of complex equlibria of ca(ii), mg(ii) and zn(ii) with 5-sulphosalicylic acid in cationic micelles of ctab
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6690561/
https://www.ncbi.nlm.nih.gov/pubmed/31417969
http://dx.doi.org/10.1016/j.heliyon.2019.e02157
work_keys_str_mv AT ramanaiahm potentiometricstudiesofcomplexequlibriaofcaiimgiiandzniiwith5sulphosalicylicacidincationicmicellesofctab
AT seetharamp potentiometricstudiesofcomplexequlibriaofcaiimgiiandzniiwith5sulphosalicylicacidincationicmicellesofctab
AT balakrishnam potentiometricstudiesofcomplexequlibriaofcaiimgiiandzniiwith5sulphosalicylicacidincationicmicellesofctab
AT rajubrama potentiometricstudiesofcomplexequlibriaofcaiimgiiandzniiwith5sulphosalicylicacidincationicmicellesofctab