Submitted:
23 November 2021
Posted:
25 November 2021
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Abstract
(200 words) Imidazolium ionic liquids containing acetylacetone, thenoyltrifluoroacetone, or 8-hydroxyquinoline, respectively, were used as the extracting agents for the separation of traces of iron (III) from its aqueous solutions with or without citric and oxalic acids. The results show that 8-hydroxyquinoline in imidazolium ionic liquids extract iron quantitatively from all the tested solutions including complexing ones, regardless indications of unexpected iron behavior/speciation.
Keywords:
ionic liquids
; liquid-liquid extraction
; iron extraction
; 8-hydroxyquinoline
; acetylacetone
; thenoyltrifluoroacetone
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