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Hydrotrope‐Solubilization Action of Urea in CTAB/ n ‐C 5 H 11 ‐OH/H 2 O System
Author(s) -
Guo Rong,
Zou AiHua,
Yang HanMin
Publication year - 2001
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.20010190204
Subject(s) - chemistry , microemulsion , urea , solubilization , solubility , pulmonary surfactant , aqueous solution , bromide , lamellar structure , phase (matter) , inorganic chemistry , nuclear chemistry , organic chemistry , crystallography , biochemistry
Urea can enhance the aqueous solubility of surfactant CTAB (hexadecyltrimethylammonium bromide) when it shows the hydrotrope action. It will show the hydrotrope‐solubilization action when the solubilized amount of n ‐C 5 H 11 OH in O/W microemulsion and that of water in W/O microemulsion are increased. The mechanism of the hydrotrope‐solubilization action of urea is the increase of the stability of W/O and O/W microemulsion and structural transition from the lamellar liquid crystalline phase to the bicontinuous structure.