when two or more emulsifiers are blended ,the resulting HLB of the blend is easily calculated.For example,suppose you want to determine the HLB value of a blend comprising 70% of tween 80(HLB=15)and 30% of span 80 (HLB=4-3)the calculation would be:
when two or more emulsifiers are blended ,the resulting HLB of the blend is easily calculated.For example,suppose you want to determine the HLB value of a blend comprising 70% of tween 80(HLB=15)and 30% of span 80 (HLB=4-3)the calculation would be: