Figure 5:
Effect of pH on the extraction of Cu (II) with lauric acid (0.2 M) diluted in benzene at 298.2 K. Initial concentration of Cu (II) (M): (?) 5×10
-4
; (?) 2.5×10
-3
; (?) 5×10
-3
; (?) 2.5×10
-2
.
