We are attempting to find the references for HLB value of Benzalkonium chloride, also known as benzyldimethylhexadecylammonium chloride. Does anyone give me the reference? Thank you.
Dear Atthaphon:
Count HLB by Davis J.T.
Becker P. Emulsions.N.-Y. Reinhold Publ.,1965. 440p.
Best regards.
Dear Atthaphon,
did you manage to calculate this value? I am also interested in it.
The literature is very poor regarding HLB values of ionic surfactants. These values could only be calculated on Davies' scale, instead of the more common Griffin's one (note that the two scales are not consistent with each other). Davies gave a value for N (nitrogen in tertiary amines), but not for quaternary ammonium ion. In addition, benzalkonium chloride contains a benzene ring, which was not considered as such by Davies (only -CH3, -CH2- and -CH=) and the commercial product is a mixture, i.e. the hydrophobic part is not a single aliphatic chain, but contains C12 to C18 components. Therefore, in my opinion, only experiments of partitioning of benzalkonium chloride between aqueous and organic phase will give you a correct answer.
is it possible to calculate the HLB value of tetra n octyl ammonium bromide from davies model?
@ Ramesh Oaron
Hello! As I noticed 3 years ago, to the best of my knowledge, Davies did not publish an increment value for quaternary ammonium ion. You might consult the reference below:
B.H. O, Journal of Colloid and Interface Science
Volume 198, Issue 2, 15 February 1998, Pages 249-260.
Regards,
J.P. Canselier
@Jean Paul Canselier
Dear Sir
Thank you
I got the justification in terms of electrochemical behavior.
Ramesh Oraon
... and also the attached file.
Regards,
Jean Paul Canselier
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