where Mh is the molecular mass of the hydrophilic portion of the Molecule, and M is the molecular mass of the whole molecule, giving a result on an arbitrary scale of 0 to 20. An HLB value of 0 corresponds to a completely hydrophobic molecule, and a value of 20 would correspond to a molecule made up completely of hydrophilic components.
The HLB value can be used to predict the surfactant properties of a molecule:
m - number of hydrophilic groups in the molecule
Hh - Value of the hydrophilic groups
n - Number of lipophilic groups in the molecule
Hl - Value of the lipophilic groups
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