Solvent extraction of antimony(III) with 18-crown-6 from iodide media |
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Authors: | Vibhute R G Khopkar S M |
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Affiliation: | Department of Chemistry, Indian Institute of Technology, Bombay-400076, India. |
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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. |
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