When a compound of low solubility needs to be extracted from a solid mixture a Soxhlet extraction can be carried out. The technique places a specialised piece of glassware in-between a flask and a condenser. The refluxing solvent repeatedly washes the solid extracting the desired compound into the flask.

 

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The Interactive lab primer has been developed as part of the Royal Society of Chemistry Teacher Fellowship Scheme titled ‘Chemistry for our Future’ in partnership with the University of Southampton, The University of Nottingham, University of Birmingham and The University of Sheffield

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