P. Unak et al., DETERMINATION OF THE STABILITY-CONSTANTS OF URANYL COMPLEX WITH 8-HYDROXYQUINOLINIUM SULFATE, Journal of radioanalytical and nuclear chemistry, 176(1), 1993, pp. 55-64
8-Hydroxyquinoline (8-HOQ) is known as an important chelating agent fo
r several metal ions. This compound is practically insoluble in water.
For this reason, in this study its water soluble sulfate salt has bee
n used for complexing uranyl ions and the stability constants of the c
omplex have been determined. The Irving-Rosotti method computing the C
alvin-Bjerrum pH-titration data, was applied. Finally, the stability c
onstants of the complex formed between (8-HOQN-H)2SO4 and uranyl ions
were found to be IgK1=8.25 and IgK2=4.15, the overall stability consta
nt being Igbeta2=12.40.