Image:Distillation of dry and oxygen-free toluene.jpg

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Distillation of dry and oxygen-free toluene from sodium-benzophenone desiccant. Glassware are under a slight positive nitrogen pressure from the side-arm of the receiving Schlenk flask to prevent oxygen contamination. Note that this is not a closed system - the nitrogen supply is connected to an oil bubbler (not in picture) to prevent overpressure.

Photo taken on 6 Sep 2006.

Keywords: distillation, toluene, sodium, benzophenone, desiccant

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