Electrochemical study and electrode kinetics of complexes of Ga(III) with various amino acids

The electroreduction of Ga(III) in the aqueous medium has been investigated at DME. The stability constants of Ga(III)-Amino acids have been evaluated by the method of DeFord and Hume's method and Kinetic parameters have been calculated by Koutecky’s method. The reduction of complexes has been found to be irreversible and diffusion controlled involving three electrons in each case. Ga(III) formed 1:1 1:2 and 1:3 complexes with these ligands. The change in thermodynamic parameters DGo, DHo and DSo have been evaluated. The mathematical Mihailov’s method has also been applied for the comparison of stability constant values obtained by graphical method.