Extraction chromatography with bis(2-ethylhexyl)phosphoric acid for separation of tin(IV).
Tin is extracted from 0.01M hydrochloric acid on a silica-gel column impregnated with bis(2-ethylhexyl)phosphoric acid, stripped with 5M hydrochloric acid, and then determined spectrophotometrically as its Pyrocatechol Violet complex at 555 nm. Tin has been separated from several multicomponent mixtures containing arsenic, antimony, bismuth, lead and copper, and determined in various alloys.
Vin
Y Y
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Department of Chemistry, Indian Institute of Technology, Bombay 400 076, India.
Khopkar
S M
SM