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The effects of anionic and cationic surfactants on the hydrolysis of sodium barbital
Author(s) -
Qian Junhong,
Qian Shaohua,
Guo Rong
Publication year - 2005
Publication title -
journal of surfactants and detergents
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.349
H-Index - 48
eISSN - 1558-9293
pISSN - 1097-3958
DOI - 10.1007/s11743-005-0354-2
Subject(s) - chemistry , barbital , sodium dodecyl sulfate , pulmonary surfactant , hydrolysis , cationic polymerization , sodium , micelle , bromide , alkaline hydrolysis , inorganic chemistry , chromatography , nuclear chemistry , organic chemistry , aqueous solution , biochemistry
Alkaline hydrolysis reactions of sodium barbital in micelles of sodium dodecyl sulfate (the anionic surfactant SDS), micelles of cetyl trimethylammonium bromide (the cationic surfactant CTAB), and mixed micelles of surfactant/ n ‐C 5 H 11 OH/H 2 O were studied by ultraviolet‐visible spectrometry. The reaction rate and the activation energy of the hydrolysis of sodium barbital were calculated. The results showed that the rate of sodium barbital hydrolysis decreased with an increase in CTAB content, whereas it increased in the presence of SDS and n ‐C 5 H 11 OH. The different effects of CTAB and SDS on the hydrolysis of sodium barbital may be related to their interaction with sodium barbital.