Thermodynamic aspects of nonionic surfactant-water systems

Journal Article · Thu Oct 01 00:00:00 EDT 1970 · J. Colloid Interface Sci.; (United States)

DOI:https://doi.org/10.1016/0021-9797(70)90179-7· OSTI ID:5918732

Shinoda, K

The phase diagram of octaoxyethylene dodecylether vs. water system has been determined. On the basis of these results as well as of published thermodynamic data, the thermodynamic aspects and the dissolution mechanism of nonionic surfactant-water systems are discussed. Unlike ordinary solutions, an aqueous solution of nonionic surfactant resembles, in principle, a fine dispersion of the 2 phases. One is the water phase containing a very small amount of nonionic surfactant (0.02% by wt), and the other is the swollen surfactant phase. The thermodynamic properties agree with such a model. The mechanism of the dissolution of biopolymers and polysoaps can be explained similarly. (14 refs.)

• Research Organization: Yokohama Natl Univ
• OSTI ID: 5918732
• Journal Information: J. Colloid Interface Sci.; (United States), Journal Name: J. Colloid Interface Sci.; (United States) Vol. 34:2; ISSN JCISA
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
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DISSOLUTION
ENGINEERING
FLUID INJECTION
PHYSICAL PROPERTIES
RESERVOIR ENGINEERING
SOLUBILITY
SURFACTANTS
THERMODYNAMIC PROPERTIES
WATERFLOODING