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(solution) I'm working on a organic chemistry lab on the extraction and


I'm working on a organic chemistry lab  on the extraction and purification of caffeine from tea leaves, and one of my hw questions is:

You wish to extract an organic compound from an aqueous phase into an organic layer (three to six extractions on a macroscale). With regard to minimizing the number of transfer steps, would it be better to use an organic solvent that is heavier or lighter than water? Explain.

I understand that the best solvents to use are immiscible solvents and when it comes to looking at dielectric constants, my cutoff mark is at around 18, but I can't seem to understand where one being heavier would come in. 

 


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Sep 13, 2020

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