Clouding behaviour in surfactant systems.

Authors :: Mukherjee P
Padhan SK
Dash S
Patel S
Mishra BK
Source :: Advances in colloid and interface science [Adv Colloid Interface Sci] 2011 Feb 17; Vol. 162 (1-2), pp. 59-79. Date of Electronic Publication: 2011 Jan 12.
Publication Year :: 2011
Abstract: A study on the phenomenon of clouding and the applications of cloud point technology has been thoroughly discussed. The phase behaviour of clouding and various methods adopted for the determination of cloud point of various surfactant systems have been elucidated. The systems containing anionic, cationic, nonionic surfactants as well as microemulsions have been reviewed with respect to their clouding phenomena and the effects of structural variation in the surfactant systems have been incorporated. Additives of various natures control the clouding of surfactants. Electrolytes, nonelectrolytes, organic substances as well as ionic surfactants, when present in the surfactant solutions, play a major role in the clouding phenomena. The review includes the morphological study of clouds and their applications in the extraction of trace inorganic, organic materials as well as pesticides and protein substrates from different sources.<br /> (Copyright © 2011 Elsevier B.V. All rights reserved.)