title: Solvent extraction of antimony(III) with 18-crown-6 from iodide media.
abstract: Antimony can be quantitatively extracted from 1M sulphuric acid containing 0.25M potassium iodide with 0.02M 18-crown-6 in methylene chloride, and determined spectrophotometrically at 430 nm. Bismuth, tin, antimony and arsenic can be separated by sequential extraction with 18-crown-6 from aqueous phases with appropriately adjusted sulphuric acid and potassium iodide concentrations.
authors.affiliation: Department of Chemistry, Indian Institute of Technology, Bombay-400076, India.
authors.forename: R G
authors.initials: RG
authors.lastname: Vibhute
authors.forename: S M
authors.initials: SM
authors.lastname: Khopkar