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Liquid-Liquid Extraction

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    283095
  • Videos to watch Liquid-Liquid Extraction

    Video 1: Liquid/Liquid Extraction. https://www.youtube.com/watch?v=8bZl7mcG0Ew
    Video 2: CHEM117 04 Liquid Liquid Extraction Fundamentals. https://www.youtube.com/watch?v=kQZFl_S5o5c
    1. Define the following terms and provide equations/formulas, when possible:

      Extraction: 



       

      Distribution coefficient (DC):





       

      Partition coefficient (DM):





     

    1. Show the relationship between DC and DM





     

    1. Compare the solubilities of ionic vs. neutral organic compounds.




     

    1. What is the effect of pH on organic acids (RCOOH) and how does it affect their separation in LLE?




     

    1. What is the effect of pH on organic bases (R3N) and how does it affect their separation in LLE?




     

    1. What is the effect of pH on neutral organic compounds and how does it affect their separation in LLE?










     

    1. Draw a simple liquid-liquid extraction setup. Make sure you label all components of the setup including the two phases.














     

    1. Illustrate a simple separation process of two solutes (a hydrophilic and a hydrophobic) using LLE.













     

    1. Devise a LLE setup to separate a sample that contains trace levels of three compounds: an organic acid, an organic base, and a neutral organic compound. The goal is to have three solutions at the end, each in methylene chloride, one of which contains only the organic acid, the second contains only the organic base, and the third contains only the neutral compound.

     

     

     

     

     

     

     

     

     

     

     

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