Journal of Chemistry / 2016 / Article / Tab 2

Research Article

Effect of Methanol on Viscosity of Aqueous Solutions of Cationic Surfactants at 298.15 to 323.15 K

Table 2

CMC values of dodecyltrimethylammonium bromide (DTAB) and cetyltrimethylammonium bromide (CTAB) in water and 0.10, 0.20, 0.30, and 0.40 volume fractions of methanol-water at 298.15 K, 308.15 K, 318.15 K, and 323.15 K.

/KVolume fraction of methanolCMC/mM
DTABCTAB

298.150.014.50.97
0.117.51.21
0.220.51.76
0.325.13.86
0.434.56.83

308.150.015.41.12
0.118.11.38
0.221.71.80
0.326.44.56
0.435.67.23

318.150.016.31.23
0.119.51.68
0.222.82.64
0.327.35.74
0.436.77.47

323.150.017.31.30
0.120.51.80
0.223.72.83
0.328.15.82
0.437.87.44

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