Mechanism of solubilization of water by oil-soluble surfactant solutions. Pt. 1. Anionic surfactants

Journal Article · Wed Jan 01 00:00:00 EST 1969 · J. Colloid Interface Sci.; (United States)

DOI:https://doi.org/10.1016/0021-9797(69)90345-2· OSTI ID:5720211

Kitahara, A; Watanabe, K; Kon-No, K; Ishikawa, T

The heat of solubilization and the limiting amount of water solubilized by sodium, calcium, or aluminum di-2- ethyl-hexyl sulfosuccinate in benzene or cyclohexane were obtained from the meaurement of the vapor pressure of solubilized water and its temperature dependence. The NMR signal and the signal width of the proton of water solubilized by these surfactant solutions were also measured. The magnitude of the limiting amount of water solubilized, the heat of solubilization, the chemical shift, and the signal width of the water proton were all in the order: Al-salt > Ca-salt > Na-salt. The latter 3 quantities changed according to the same order with the increase of solubilization. These results can be interpreted by the mechanism that the solubilization of water by these anionic surfactants is due to the interaction between the water molecule and the cation of the surfactant in the micelle. (11 refs.)

• Research Organization: Tokyo Sci Univ.
• OSTI ID: 5720211
• Journal Information: J. Colloid Interface Sci.; (United States), Vol. 29:1
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
OIL WELLS
WATERFLOODING
ALUMINIUM
ANIONS
CALCIUM
PETROLEUM
SODIUM
SOLUBILITY
SURFACTANTS
THERMODYNAMIC PROPERTIES
VAPOR PRESSURE
ALKALI METALS
ALKALINE EARTH METALS
CHARGED PARTICLES
ELEMENTS
ENERGY SOURCES
FLUID INJECTION
FOSSIL FUELS
FUELS
IONS
METALS
PHYSICAL PROPERTIES
WELLS
020300* - Petroleum- Drilling & Production