Polarographic Determination of Stability Constant Values of Complexes of Levulinic Acid with Ga(III) and Tl(I) by DeFord and Hume's and Mihailov's Methods

Abstract

The reduction of Ga(III) and Tl(I) with levulinic acid has been investigated electrochemically in aqueous medium and the stability constants of complexes have been evaluated. The metal complexes of levulinic acid with ratio as 1:1, 1:2, 1:3 for Ga(III) and 1:1, 1:2 for Tl(I) have been reported. The values of stability constants of complexes of levulinic acid with Ga(III) have log b₁ = 2.92, log b₂ = 5.74, log b₃ = 8.39 and complex of levulinic acid with Tl(I) have log b₁ = 2.62, log b₂ = 5.58 at 308 K, which have been calculated by DeFord and Hume's method. The mathematical Mihailov's method was also used.