Name of Surfactant CMCa/10-3 M n Kp
Sodium dodecyl sulfate (SDS) 8.1 6.5 16
Sodium tetradecyl sulfate (STS) 2.1(50°C) 138b 32
Sodium decanesulfonate 40 40 -
Sodium dodecanesulfate 7.2 54 37.5
Sodium N-lauroyl-N-methyltaurate (LMT) 8.7 - <0
Sodium polyoxyethylene dodecyl ether sulfate 2.8 66 -
Sodium N-dodecanoyl-L-valinate (SDVal) 5.7(40°C) - -
Sodium cholate 13-15 2-4 -
Sodium deoxycholate 4-6 4-10 -
Sodium taurocholate 10-15 5 -
Sodium taurodeoxycholate 2-6 - -
Potassium perfluoroheptanoate 28 - 25.6
Dodecyltrimethylammonium chloride (DTAC) 16(30°C) - -
Dodecyltrimethylammonium bromide (DTAB) 15 56 -
Tetradecyltrimethylammoniumbromide (TTAB) 3.5 75 -
Cetyltrimethylammonium bromide (CTAB) 0.92 61 -
a25°C
bIn 0.10M NaCl
Table 1: Critical Micelle Concentration, Aggregation Number (n), and Kraft point (Kp) of Selected Ionic Surfactants.