RESULTS AND DISCUSSION
Effect of acidity, thiocyanate and reagent concentration
The concentration of KSCN was varied from 0.1-2.5M and that of H2SO4 from 0.1-4.0M, keeping the
concentration of one constant and other varying. The concentration of 4-Methyl-N-n-octylaniline was
varied from 1-2%. It was observed that bismuth was quantitatively extracted when the concentration of
KSCN was 0.5M and that of H2SO4 1.0-3.0M [Fig.-1 and 2] with equal volume of 2% 4-Methyl-N-noctylaniline
in xylene [Table- 1 and 2]