Question: how to calculate hlb of surfactant?
Answer: HLB= 20 [1-(S / A)] is calculated with that equation. The HLB values of some of the most frequently used surfactants are shown in Table 11.1. A specific HLB called; necessary hydrophile-lipophilic balance (RHLB) & quot; is required for the oil phase of an oil in water (o/w) type emulsion.