Fig. 11

Plots of conductivity vs surfactant concentration at 25, 35 and 45 °C for: (a). T12S2, (b). T14S2, (c). T16S2, (d). T12S3 (e). T14S3, (f). T16S3, (g). T12S4, (h). T14S4, (i). T16S4.

Plots of conductivity vs surfactant concentration at 25, 35 and 45 °C for: (a). T12S2, (b). T14S2, (c). T16S2, (d). T12S3 (e). T14S3, (f). T16S3, (g). T12S4, (h). T14S4, (i). T16S4.