Distribution of Copper Ions between an Aqueous Phase and a Toluene Phase containing Cyclohexanone Oxime

Abstract

AN investigation of the abilities of some simple monoximes to extract metal ions into organic solutions has shown that most of the oximes examined, including n-octaldoxime, n-dodecaldoxime, α-benzaldoxime, methyl n-hexyl ketoxime, di-n-butyl ketoxime, and acetophenone oxime, were able to extract copper (II) into a toluene phase as a green complex when small additions of alkali were made to the aqueous phase. Usually, copper (II) was more easily extracted by aldoximes than by ketoximes, but the systems exhibited unfavourable physical properties, including poor kinetics and formation of emulsions and precipitates, which rendered thorough investigation difficult.