Electrolytes

Article Abstract:

Research was conducted to examine the inhibition of bubble coalescence in aqueous electrolyte solutions. All the electrolytes examined were observed to have a measurable effect on coalescence even at concentrations in the range of 0.001 M. Results indicate that the inhibition of coalescence at low concentrations is dominated by a completely different mechanism than in the range of concentrations studied by Craig, Ninham and Pashley.

Electrolyte solutions, Electrolytes, Bubbles

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Hydrogen molecule in the small, dodecahedral cage of a clathrate hydrate: Quantum five-dimensional calculations of the coupled translation-rotation eigenstates

Article Abstract:

Quantum five-dimensional (5D) calculations of the energy levels and wave functions of the hydrogen molecule, para-[H.sub.2] and ortho-[H.sub.2] confined inside the small dodecahedral [([H.sub.2]O).sub.20] cage of the sII clathrate hydrate is reported. The results provide an accurate description of the quantum dynamics of the coupled translational and rotational motions of the encapsulated hydrogen molecule.

Gas hydrates, Structure, Chemical properties, Potential energy, Report

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Optical Kerr effect spectroscopy using time-delayed pairs of pump pulses with orthogonal polarizations

Article Abstract:

A technique in which perpendicularly polarized pulses with controllable intensities and timing are used for the excitation step in optical Kerr effect spectroscopy is characterized. The ratio of pump pulse intensities required to cancel the contribution of reoriental diffusion or of a Raman-active intramolecular vibration to the signal as a function of the delay time between excitation pulses are examined.

Polarization (Electricity)

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