SOLUTION STATE AND THERMODYNAMIC STUDIES ON BINARY COMPLEXES OF THE TH(IV) WITH SOME HYDROXY ACIDS
DOI:
https://doi.org/10.52292/j.laar.2015.409Keywords:
Stability constant, Thermodynamic parameters, Hydroxy acids, Systemic error, Dissociation constant.Abstract
A Solution state study on complexation behavior of Th(IV) with hydroxy acids (malic acid, lactic acid, salicylic acid and mandelic acid) has been carried out using the Irving–Rossotti titration technique in aqueous media and mixed media at different temperatures and ionic strengths. The dissociation constant and stability constants (logβ) of the resulting complexes have been calculated with the Fortran IV program BEST using the method of least squares and considering the BESTFIT model. Species distribution curves of complexes have been plotted as function of pH using the SPEPLOT Fortran IV program to visualize various species in equilibrium in the pH range 2–14. Thermodynamic properties were calculated and negative ∆G, ∆H and ∆S values indicated that complex formation is a spontaneous and exothermic process at these temperatures. To understand more about these equilibriums, the stability of these complexes was studied in presence of various systemic errors.
Published
Issue
Section
License
Once a paper is accepted for publication, the author is assumed to have transferred its copyright to the Publisher. The Publisher will not, however, put any limitation on the personal freedom of the author to use material from the paper in other publications. From September 2019 it is required that authors explicitly sign a copyright release form before their paper gets published. The Author Copyright Release form can be found here
