RHLB was new to me.

However, I found that it should mean required HLB.

at http://4my2323.blogspot.de/#uds-search-results

you find a table for different oils.

For unknown you could do tube testing or testing by centrifugation with a range of nonionic standard surfactants of varying HLB

Article Technique for the Rapid Determination of HLB and Required-HLB Values

then it could be ideally combined with LUMiSizer or LUMiFuge, which would allow for automatic evaluation of data.

Article Rapid characterization of emulsions for emulsifier selection...

it has to be mentioned that it is more suitable to select an effective emulsifier as mixture of available 'individual' (technical) surfactants than to derive a 'universal' 'RHLB' value. Pioneers of HLB were already aware, that given the technical surfactants, specifically nonionic ones, are composed of a mixture of oligomeres, optimum HLB values depend on mixtures of individual products mixed.

I could not find RHLB for oleic acid in the literatures. Can you introduce a reference to me?

thanks.

A specific HLB called; necessary hydrophile-lipophilic balance (RHLB) & quot; is required for the oilphase of an oil in water (o/w) type emulsion. A different RHLB is required to form an oil-in-water (w/o)type emulsion with the same oil phase. HLB values for both emulsions of type o/w and w/o can be empirically determined for many oils and fats.

The total RHLB value is the sum of the values obtained by multiplying the weight fraction and the RHLB value of each oil-like component contributing to the oil phase

Dignesh Khunt

hi, brother i know its last long time hope you ok, kindly , do you got the answer , i have also capmul mcm c8 its hlb value is 6.5 but i found the required is 10.8 but how?