Q&A: Is it typically safe to apply heat to a vacuum filtration flask, with only the sidearm left open?

Question by Chem Kid: Is it typically safe to apply heat to a vacuum filtration flask, with only the sidearm left open?

I am considering distilling some 70% (mass) store-bought ethanol with a somewhat makeshift apparatus. The top is stoppered with a rubber stopper, and the sidearm is connected to some tubing which runs down a chilled receiving flask. I’d like to make sure that there isn’t some obvious flaw that I’m overlooking.

Best answer:

Answer by Caligula
yeah it should work
maybe the rubber will get attacked by the ethanol vapors over time
maybe the tubing too depending on its material

but if you manage to get a vacuum filtration flask, why cant you get a proper laboratory condenser

What do you think? Answer below!