n Fig. 7. The decrease in percentage dye extracted is probably
due to the evaporation of the solvent at high temperatures.
Further studies were carried out at 20 C.
The aqueous to organic phase ratios (A/O) of 1:1, 2:1, 3:1
and 4:1 were used to study its effect on the extraction of dye
under constant conditions. The maximum extraction was
observed at ratio 1:1 (100%) and decreased to 90.1% at 4:1
ration as shown in