Funkerman23
Hazard to Others
Posts: 416
Registered: 4-1-2012
Location: Dixie
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vacuum odds&ends?
after a few goes with the built in search tool I'm stumped and Laboy isn't helping much. But I have a few questions for the technicians here &
anyone else who can help. On Laboy's,or for that matter most brands, 2 part Cow distillation adapters; what is the sane max size of flask that can be
used with a 24/40 joint size? I know the 50mL flasks will work but anything else I don't know for sure. Now I know of a few ways I can make a vacuum(
Aspirator, hvac pump, teflon diaphragm, fridge compressor,etc) but does anyone have/ know of some files that deal more with setting up vacuum station
& such? I thank you for your time and I appreciate the help.
" the Modern Chemist is inundated with literature"-Unknown
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Dr.Bob
International Hazard
Posts: 2734
Registered: 26-1-2011
Location: USA - NC
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On many cows, there is a limit as to the size of flask as the necks are not angled far apart. But it depends also on if the flasks have a long neck
or not. If you have longer necked flasks, you can likely go much bigger flasks, likely up to 250 ml or bigger.
I have never seen any basic info on making a vacuum station, but having one (or more) traps is best, if using an aspirator, they make a trap bottle
with a inlet on the side-bottom that you can hook straight to the aspirator, then the top is where you hook your tubing to the filter flask or such,
so that if water is ever sucked back into the trap, it gets sucked back out easily. Google "aspirator bottle" to find them. If you use one of
those and then normal trap bottle, there is almost no chance of water suck back from an aspirator.
http://www.cardinal.com/us/en/distributedproducts/ASP/B7580-...
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