An Interaction of Anionic- and Cationic-Rich Mixed Surfactants in Aqueous Medium through Physicochemical Properties at Three Different Temperatures
Table 10
Hydrodynamic radius (/nm) 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
59.38
60.97
76.27
0.000096
52.35
61.38
54.30
0.000240
54.37
60.92
72.52
0.000480
48.93
61.05
61.03
0.000672
54.67
64.87
69.09
0.000792
58.24
56.91
71.63
0.000960
57.44
60.17
82.22
0.006011
58.92
58.09
83.22
0.007200
54.90
57.93
81.98
0.007920
53.97
53.73
80.78
0.009000
55.11
54.25
82.87
0.010800
53.96
57.90
69.15
0.012000
55.57
45.30
79.48
DTAB-rich
0.010000
58.24
58.95
83.34
0.000864
43.13
66.35
70.12
0.000960
41.16
64.74
63.46
0.001536
40.96
64.27
68.30
0.002016
41.20
65.51
59.03
0.002496
37.79
65.90
50.05
0.002976
30.66
64.54
46.15
0.003264
43.78
65.20
40.10
0.003600
56.09
62.77
82.35
0.005040
39.50
58.87
68.79
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.
