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October 25, 2010
Settle A Bet
I had an email this morning asking me to settle a bet on lab technique. I'm not sure I know the answer myself, so I figured I'd throw the question out to the readership.
So here goes: in your vacuum cold trap, which I'll assume is cooled by dry ice (and not liquid nitrogen, for the most part), what solvent do you use: acetone or isopropanol? (If you use something else, feel free to add it to the list, but I think you'll be in a distinct minority). As for me, I used acetone back in grad school, but switched over to isopropanol years ago, because I didn't have to change it (or add to it) so often.
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