Abstract
The extraction of europium(III) in 0.1 M sodium perchlorate with acetylacetone, benzoylacetone, trifluoroacetylacetone, benzoyltrifluoroacetone, froyltrifluoroacetone and thenoyltrifluoroacetone in chloroform and the adduct formation of these metal chelates with tributylphosphate have been studied at 25°C.