The extraction of iron(III) from 6 M hydrochloric acid by long-chain amines dissolved in chloroform

Abstract

Two-phase titration studies demonstrate a strong tendency for the formation of heterogeneous aggregates in the extraction of iron(III) from 6 M HCl by primary, secondary and tertiary amine hydrochlorides in chloroform. The stoichiometries of the extracted complexes are identified, and their extraction equilibrium constants are reported. The importance of the reagent monomer in the extraction process is discussed.