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Video: Cell Co-culture Patterning Using Aqueous Two-phase Systems

Solvent extraction: Principle, easy process, application - Chemistry Notes

One step in the preparation of nicotine sulfate from tobacco is the extraction of nicotine from aqueous solution by kerosene. Table 10 . P 1 shows equilibrium data for the distribution of nicotine between water and kerosene. Compute the kerosenewater ratio required to remove 90 percent of the nicotine from the aqueous stream in a single equilibrium stage. Nicotine in aqueous phase (I)(g / L) Nicotine in organic phase (II)(g / L) 0.62 0.39 1.49 0.96 2.92 2.07

Pre-Lab QuestionsDraw a diagram similar to that in Figure 1, detailing the separation of 2-dichlorobenzene, phenol (pKa 10), and pyridine by an extraction protocol:2-dichlorobenzenephenolpyridineSodium bicarbonate (NaHCO3) can be used as a base to extract carboxylic acids into the aqueous layer, but cannot be used to extract most alcohols. Explain. Hint: the pKa of HCO3- is approximately 10.Explain the difference between extraction and washing.Look up the densities and miscibility of hexane and

5.8: Distribution between Immiscible Phases - Extraction and Separation Processes