Elektrometrische Untersuchung der Zusammensetzung und Stabilität von Thiomilchsäurekomplexen mit Zn2+und UO22+

摘要

The complexation of thiolactic acid with Zn2+and UO22+has been investigated by potentiometric and conductometric titration techniques. Both the metals form 1∶1 and 1∶2 complexes in different pH ranges. Their logKstabvalues have been determined byCalvinandMelchior'sextension ofBjerrum'smethod and were further refined by alternative methods at temperatures 20, 30, and 40°C. The values of overall changes in ΔG, ΔHand ΔSfor complexation have also been r