Stability constants of glutarate complexes of copper(II), zinc(II), cobalt(II) and uranyl(II) by paper electrophoresis

Stability constants of Copper(II), Zinc(II), Cobalt(II) and Uranyl(II) glutarates have been determined by paper electrophoresis. Glutaric acid (0.005 mol dmsup(-3)) was added to the background electrolyte : 0.1 mol dmsup(-3) HClO4. The proportions of (CH2)3 COOH COO- and (CH2)3C2O42- were varied by changing the pH of the electrolyte. These anions yielded the complexes Cu(CH2)3C2O4, [Zn(CH2)3 COOH COO]+ [Co(CH2)3 COOH COO]+ and UO2 (CH2)3C2O4 whose stability constants are found to be 10sup(3.9), 10sup(2.9), 10sup(2.7) and 10sup(13.5) respectively. (author)