A vibrational sum frequency spectroscopy study of the liquid-gas interface of acetic acid-water mixtures: 2. Orientation analysis

Article Abstract:

The study investigates the surface of aqueous acetic acid solution using the vibrational sum frequency spectroscopy. It concluded that the orientation of the interfacial acetic acid molecules was found to remain essentially constant in an upright position with the methyl group directed toward the gas phase in the whole concentration range.

Analysis, Spectra, Aqueous solution reactions

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Effect of a salt on the kinetics of solute transfer at a free liquid/liquid interface

Article Abstract:

The effect of a salt on the kinetics of transfer of acetic acid at a free liquid/liquid boundary was studied using the rotating membrane cell technique. It was found that the quantity of concentrations between 0 and 8 mol L(super -1) is not sufficient for describing the effect of a slat on the kinetics of transfer of acetic acid.

Dynamics, Dynamics (Mechanics), Boundary layer, Boundary layers (Fluid dynamics), Sodium chloride

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A vibrational sum frequency spectroscopy study of the liquid-gas interface of acetic acid-water mixtures: 1. Surface speciation

Article Abstract:

The study of aqueous acetic acid solutions is presented by vibrational sum frequency spectroscopy (VSFS) in order to acquire molecular information about the liquid-gas interface. It concluded that even such a small amounts as 0.3% acetic acid disrupt the water surface significantly.

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