Dipolar anions are not preferentially attracted to the oil/water interface

Article Abstract:

Homogenization of hexadecane in water at pH 9 gives the same surface charge density in the presence of 0.2 mM thiocyanate or acetate anions in the presence of chloride, indicating that these dipolar anions are not preferentially adsorbed at the oil/water interface. Increasing the sodium hydroxide concentration from pH 9 to 11.5 has a different effect on the zeta potential, consistent with the specific adsorption of hydroxide ion at the oil/water interface.

Acetates, Thiocyanates

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Phase behavior and microstructure of microemulsions with a room-temperature ionic liquid as the polar phase

Article Abstract:

The studies of the phase behavior of the microemulsions of nonionic alkyl oligoethyleneoxide (C,E) surfactants, alkanes, and ethylammonium nitrate (EAN), a room temperature ionic liquid was observed to exhibit a single broad small-angle X-ray scattering peak like aqueous systems.

Thermal properties, Ionic solutions, Aqueous solution reactions, X-ray analysis

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High resolution AFM images of the single-crystal alpha-Al2O3(001) surface in water

Article Abstract:

The (0001) surface of alpha-Al2O3 single crystals is imaged by atomic force microscopy in water. The observed hexagonal lattice arrangement has a period of 4.7 Angstrom in good agreement with the known bulk unit cell.

Analysis, Surface chemistry, Atomic force microscopy

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