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Soxhlet extractor



Soxhlet extractor (with condenser above and flask below)


Invented in 1879 by Franz von Soxhlet.


  • IPA(key): /ˈsɒkslət ɪkˌstɹæktə/


Soxhlet extractor (plural Soxhlet extractors)

  1. (chemistry) A piece of laboratory apparatus consisting of a glass reservoir that sits over a lower flask (containing a boiling solvent) and under a condenser; a sample contained in a paper thimble is placed in the reservoir and soluble materials are continually extracted by the warm solvent and transferred to the lower flask via a siphon.
    • 2006, Thomas Pynchon, Against the Day, Vintage 2007, p. 264:
      Amid a gleaming clutter of burners and spectroscopes, funnels and flasks, centrifugal and Soxhlet extractors [...], serious girls with their hair in snoods entered numbers into log books

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