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In this study, a new eco-friendly process was developed for the removal of volatile organic compounds (VOC) from contaminated groundwater. The new process included two steps. The first step is a solvent extraction process using a high-efficiency centrifugal contactor, in which the VOC's were extracted from the groundwater using cooking oils, acting as safe and environment-friendly solvents. In the...
Significant solubilization of ostensibly water-immiscible ionic liquids (ILs) in acidic aqueous phases is induced by the presence of any of a variety of neutral extractants, the apparent result of the formation of the protonated form of the extractant and its subsequent exchange for the cationic component of the IL. The extent of this solubilization is shown to diminish with increasing hydrophobicity...
Addition of an appropriate concentration of water to either 1-decyl-3-methylimidazolium bromide or its nitrate analog is shown to trigger the self-assembly of the ionic liquid (IL) and the concomitant formation of gel (“ionogel”) phases adopting a rich variety of structural motifs. Infrared and 1 H nuclear magnetic resonance studies indicate that water addition disrupts hydrogen bonding between...
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