Ad. Barve et al., EXTRACTION AND SEPARATION STUDIES OF BISMUTH(III) AND ANTIMONY(III) WITH TRIS(2-ETHYLHEXYL)PHOSPHATE, Bulletin of the Chemical Society of Japan, 66(4), 1993, pp. 1079-1083
Separation of bismuth(III) from lead, antimony, gold, and tellurium an
d that of antimony(III) from copper, bismuth, and lead is achieved by
selective extraction of bismuth(III) and antimony(III) from halide sol
utions into tris(2-ethylhexyl)phosphate (TEHP) dissolved in toluene or
xylene. The extracted species are evaluated by log D-log C plots. The
method is applicable to the analysis of some 'real' samples. The sepa
ration and determination takes only 20 minutes.