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Science Experiments / Vacuum Pumps and Glass Equipment
« on: 24/04/2010 23:03:09 »
I was planning on performing some basic distillation experiments using a Florence flask, Liebig condenser, and filter flask. I was going to use the filter flask to collect the distillate and to bring the pressure of the system down to about 0.5 atm for more efficient distillation. (I plan on using a cold trap of ethanol and dry ice between the filter flask and the pump, too.)
My question is 2-part: What is the threshold before I should be scared of shattering/imploding glass? I have seen experiments go to nearly a total vacuum without anything breaking, but that doesn't mean I'm not scared!
Also, should I be worried about liquid oxygen with ethanol and dry ice? I know it's a hazard with liquid nitrogen, but I feel like I should ask anyway.
Thank you for your no doubt finite time!
My question is 2-part: What is the threshold before I should be scared of shattering/imploding glass? I have seen experiments go to nearly a total vacuum without anything breaking, but that doesn't mean I'm not scared!
Also, should I be worried about liquid oxygen with ethanol and dry ice? I know it's a hazard with liquid nitrogen, but I feel like I should ask anyway.
Thank you for your no doubt finite time!