An Interaction of Anionic- and Cationic-Rich Mixed Surfactants in Aqueous Medium through Physicochemical Properties at Three Different Temperatures
Table 9
Hydrodynamic volume (/nm3) of SDS-rich and DTAB-rich surfactants in the aqueous medium at the three different temperatures T = 293.15, 298.15, and 303.15 K and at 0.1 MPa.
M (mol·L−1)
293.15 K
298.15 K
303.15 K
SDS-rich
0.005000
1.00
3.39
−15.23
0.000096
916.87
−39.94
3531.75
0.000240
241.47
2.07
130.18
0.000480
314.06
−1.57
379.62
0.000672
80.21
−48.37
98.28
0.000792
14.54
55.54
50.12
0.000960
20.86
8.03
−40.27
0.006011
0.75
4.97
−7.34
0.007200
7.05
4.42
−5.18
0.007920
8.02
11.15
−3.83
0.009000
5.34
8.93
−4.69
0.010800
5.90
2.98
6.06
0.012000
3.51
22.96
−1.86
DTAB-rich
0.010000
1.64
3.79
−10.62
0.000864
346.48
−70.79
160.87
0.000960
390.88
−52.25
269.83
0.001536
249.95
−30.43
108.93
0.002016
185.34
−27.55
184.28
0.002496
218.35
−23.30
296.68
0.002976
402.67
−16.38
336.42
0.003264
84.93
−16.36
500.46
0.003600
6.79
−9.75
2.07
0.005040
89.63
0.16
31.61
M (mol·L−1) is SDS and DTAB molarity in solvents (±3 × 10−4 mol·L−1) and standard uncertainties u are u(m) = 0.00001 mol·L−1, u(T) = ±0.01 K, and u(p) = ±0.01 MPa.