Determination of the formation quotients of Be-EDTA complexes by solvent extraction

Abstract

The formation quotient of the Be-EDTA complex, BeY2−, was determined using ligand competition in a solvent extraction system. The distribution quotients of beryllium acetylacetonate were measured by means of γ counting of 7Be in a system CCl4H2O at a constant ionic strength of 0·1 M NaNO3 at 30°C. The result obtained: logβ4 = 8·68±0·02 where , B4=[BeY2-][Be2+][Y4-]agrees with results listed in the literature.