I recently came by an article where toluene-ethanol mixture was used in soxhlet extraction. How efficient is this mixture of solvents than using single solvent for extraction?
I think this solvent mixture can dissolve most phytochemical compounds and after extraction process is completed you can obtain two layers by using separatory funnel one is polar (ethanol layer) the other is non polar (toluene) and each contain different compounds
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The two solvents forms an azeotropic mixture with a decreased boiling point. After extraction and shaking out with water the unpolaric fraction remains in the toluene.
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