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Table 1 Density of the solvent ( ρ 0 ), experimental slopes and the correlation coefficients of fits (as r 2 ) of sodium dodecyl sulphate in presence of cetyltrimethylammonium bromide from Figures 1 , 2 and 3 in pure water and methanol–water mixtures at 308.15, 318.15 and 323.15 K

From: Effects of concentration, temperature and solvent composition on density and apparent molar volume of the binary mixtures of cationic-anionic surfactants in methanol–water mixed solvent media

  T= 308.15 K T= 318.15 K T= 323.15 K
Volume fraction of methanol slope ρ 0 r2 slope ρ 0 r2 slope ρ 0 r2
0 0.033 0.9942 0.999 0.030 0.9904 0.999 0.026 0.9883 0.998
0.1 0.041 0.9799 0.999 0.036 0.9762 0.999 0.033 0.9745 0.999
0.2 0.045 0.9666 0.999 0.040 0.9618 0.998 0.039 0.9589 0.999
0.3 0.050 0.9519 0.998 0.044 0.9465 0.999 0.042 0.9435 0.999