Figure 2: Plot of K_{ex}^{mix} versus log {([Ba^{2+}][L]_{NB})1/2[Pic^{−}]} for the extraction of
BaPic_{2} by L = 18C6 into NB. A broken line shows a regression one with R =
0.850 analyzed by Equation (5a). Its analysis yielded K_{ex}/
mol^{−2} dm^{6} = (2.21 ± 0.56) × 10^{7} at K_{ex}/
mol^{−3} dm^{9} fixed in 5.6 × 10^{10}. |