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Separatory funnels split two liquids that don't mix, such as an aqueous layer and an organic solvent or oil, for liquid-liquid extraction, washing and purification.
The Fristaden Lab conical separatory funnel is made of borosilicate glass with a leak-proof PTFE stopcock, in 125, 500 or 1000 mL. Step-by-step instructions: How to Use a Separatory Funnel.
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