Premium
Critical micelle concentration of lauric acid‐diethanolamine condensate by polarographic and spectrophotometric methods: A comparative study
Author(s) -
Malik Wahid U.,
Chand Puran
Publication year - 1966
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02682411
Subject(s) - diethanolamine , critical micelle concentration , polarography , lauric acid , chemistry , electrolyte , thermodynamics of micellization , micelle , chromatography , inorganic chemistry , organic chemistry , aqueous solution , fatty acid , electrode
The critical micelle concentration (cmc) values of surfactants obtained by different physical methods do not show any concordance especially in cases when determinations are made in presence of electrolytes. With lauric acid‐diethanolamine condensate, the behavior is altogether different. A comparison of the spectrophotometric and polarographic determinations, with and without the presence of extraneous electrolytes reveals that the cmc values in both cases are almost similar. The results indicate that the cmc values of nonionic surfactants are not affected by acids, bases and salts when added in low concentrations.