Table 3 Physical properties of the surfactants^24,35.

Chemical formula

C1₈H₃₄O₆

C₂₄H₄₆O₆

C₂₄H₄₄O₆

Molecular weight (g/mol)

346.46

430.62

428.60

Density (g/cm3 at 25 °C)

1.032

1.056

1.068

Flashpoint (°C)

 > 110

185.3

186.2

HLB value

8.6

4.7

4.3

S-20

S-60

S-80