Year: 2016
Type: article
Abstract: Aqueous chemistry of some bio-metal complexes of Cu(II), Ni(II),Co(II), and Cd(II), with nicotinic acid and adenine were investigations pH-metrically on computer based programme. The mixed ligand complex formation equilibria of these complexes in aqueous solutionhaving constant ionic strength I=0.1 mol/dm3NaNO3 and 37±0.2°C& applied for determination of complexationbehaviour of (1:1) binaryML1&ML2and (1:1:1) ternary ML1L2species. Stability constant have been determined throughthe method suggested by Irving & Rossetti and further refined through Stability Constant of Generalized Species (SCOGS)computer program. The percentage of species distribution curves have been demonstrated with the help of ORIGIN 6.1 software& plotted as a function ofpH. The highest percentage of ternary species of Cu(II)L1L2, is 67.4 at ~6.1 pH,Co(II)L1L2is 82.9 at ~7.3 pH,Cd(II)L1L2is 96.2 at~8-8.2 pH&Ni(II)L1L2is93.2at~7.4 pH which is also determined with the help of software.Keywords Ternary chelates, bio-metal ions, stability constants, SCOGS.
Author: Sanjay, Shardasundaram
Institution: University of Allahabad
Language: English
Subfield: Filtration and Separation
Field: Chemical Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2486199312