Research Article
Thermodynamic studies on metal complexes of Co2+, Ni2+, Cu2+ and Cd2+ with 8-hydroxy 5-quinolinesulfonic acid in water, methanol and water-methanol binary solvent systems at 303.15 K, 313.15 K and 323.15 K by conductometric method
Dhruvi R. Mehta, Raviprakash S. Chandra, Khushbu K. Mehta and M. M. Maisuria
Corresponding Author : Mukesh M. Maisuria,
Department of Chemistry, School of Sciences, Gujarat University, Ahmedabad 380009, India.
Email ID : mmmaisuria@yahoo.co.in
Received : 2014-04-04 Accepted : 2014-04-25 Published : 2014-04-25
Abstract : Stability constants are measured for complexes of Cd+2, Cu+2, Co+2 and Ni+2 with 8-Hydroxy 5- Quinolinesulfonic acid [HQS] in water, methanol and water-methanol binary solvent systems at 303.15 K, 313.15 K and 323.15 K by conductometric method. The results shows that the stoichiometry of the complexes HQS with Co2+, Cu2+ and Cd2+ metals in all binary mixed solvents is 1:2. The log Kf values of HQS-M+2 complexes in H2O-MeOH binary mixtures increases with increasing % of MeOH and temperature. The ∆H0 and ∆S0 of the complexation reaction in the different H2O-MeOH binary mixtures were evaluated by the temperature dependence of the formation constants using a linear least square analysis according to van’t Hoff equation.
Keywords : 8-Hydroxy 5-QuinolineSulfonic acid; stability constants; complexation; thermodynamic parameters
Citation : Mukesh M. Maisuria, et al (2014) Thermodynamic studies on metal complexes of Co2+, Ni2+, Cu2+ and Cd2+ with 8-hydroxy 5-quinolinesulfonic acid in water, methanol and water-methanol binary solvent systems at 303.15 K, 313.15 K and 323.15 K by conductometric method. j. of Physical and Chemical Sciences.V1I2.04. DOI : 10.5281/zenodo.893589
Copyright : © 2014 Mukesh M. Maisuria. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited
Journal of Physical and Chemical Sciences
ISSN : 2348-327X
Volume 1 / Issue 2
ScienceQ Publishing Group
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