The Road to Recovery—Back-Extraction

I ve mentioned recovery of the four types of extractable materials, but that s not all the work you ll have to do to get the compounds in shape for further use. 

If the recovered material is soluble in the aqueous recovery solution, you ll have to do a back-extraction. 

When you re through removing the solvent and you re product is not pure, clean it up. If your product is a liquid, you might distill it if a solid, you might recrystallize it. Make sure it is clean. 

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If you have to get more of your organic layer out of the water, you can do a back-extraction with an immiscible solvent (see The Road to Recovery—Back-Extraction ). 

The Road to Recovery—Back-Extraction A Sample Extraction Performing an Extraction or Washing Extraction Hints... 

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