Interest in ionic liquids for their potential in different chemical processes is constantly increasing, as they are claimed to be environmentally benign – excellent, nonvolatile solvents for a wide range of applications. The wide applicability of these compounds also demands reliable, relatively simple and reproducible analytical techniques. These methods must be applicable not only to differen...

The prospect of being able to move through security without the inconvenience separating liquids from bags is an exciting one for passengers, and there are important operational benefits airports as well. Here, two terahertz (THz) systems, 100 GHz sub-THz line scanner attenuation total reflection-based THz time domain spectroscopy (TDS), have been used demonstrate capability identifying differe...

This work systematically monitors the keys to understand applicability of two close-cycle processes recently proposed that enable regeneration homogeneous catalysts based on ionic liquids by liquid-liquid extraction. It aims at looking for more efficient CO2 conversion platforms prevent global warming. The universal character these is here demonstrated a substrate scope accounts 7 most represen...

In this work, we proposed a new aqueous biphasic system composed of hydrophilic ionic liquids (IL, 1-butyl-3-methylimidazolium tetrafluoroborate) and saccharides, forming an upper IL-rich phase and a lower sugars-rich phase. It was found that that the distance between binodal curves and the origin is the increasing order of sucrose<glucose<xylose<fructose, which was successfully elaborated in t...

We report experimental observations of the propagation of a vortex ring through two liquid interfaces separating immiscible liquids. The experiments examine the effect of vortex ring strength and the thickness of the middle layer on the evolution of the flow. A wide range of phenomena is observed. In particular, we show that at some conditions the vortex ring enters the top layer without bringi...

Several oil–water separation techniques have been proposed to improve the capacity of cleaning water. With technological possibility producing materials with antagonist wetting behavior, for example, a substrate that repels water and absorbs oil, understanding properties control this selective has increased goal being used as mechanism separate mixed liquids. Besides experimental advance in fie...

Submitted for the MAR09 Meeting of The American Physical Society The building blocks of Dynamical Heterogeneities in dense granular media RAPHAEL CANDELIER, OLIVIER DAUCHOT, GIULIO BIROLI, CEA — Unveiling the connection between the short term relaxation and the long term dynamical heterogeneities as observed near the glass transition in super-cooled liquids and the jamming transition in granula...