The HSGC-AS method was employed to examine the effect
of IL additions on the separation factor at constant IL molar
contents, namely at x3 ffi 0.05 and x3 ffi 0.15. The experimental data
obtained with the HSGC-AS method are listed in Table 10. The effect
of IL contents on the methyl acetate/methanol separation factor
is displayed in Fig. 7, where lna12 is plotted against the
pseudobinary IL-free mole fraction of methyl acetate x
1
(ðx
1 ¼ x1=ðx1 þ x2Þ). The effects of the two examined ILs is seen to
be very close each other, except at x
1 > 0:8 where the separation
factor for the [EMIM][SCN] containing system appears to get