THIN-LAYER CHROMATOGRAPHIC SEPARATION OF COBALT (II) AND COBALT (III) via THEIR ACETYLACETONATES

Separation of di- and trivalent states of cobalt via their acetylacetonates on thin-layers of silica gel and alumina, with respect to diverse solvent systems is described. Theoretical reasonings are proposed for the differential migratory behaviour of the valences. The quantitative separation and recovery of the compounds in different valences is assessed by estimating the resolved valences spectrophotometrically. Simple, quick and elegant separations are possible with ketones, esters, alcohols and dioxane both on silica gel and alumina thin layers.