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Topic: Difficulty with Vacuum Distillation  (Read 3243 times)

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Offline baum0372

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Difficulty with Vacuum Distillation
« on: August 19, 2014, 08:48:24 AM »
I've been curious how many of you deal with vacuum distillation.  Many of the times I will hook up my distillation to my schlenk line pump, and even though I have cooled my receiving flask with liquid nitrogen, most of my product gets caught in the schlenk tubing leading to my vacuum trap, rather than my flask.  Is the schlenk pump too strong to distill these types of chemicals?

Also, if I just want to distill a compound to transfer it rather than purify it, what is the typical set up you guys use?  Typically I just use a distilling head but I've been wondering if you all may do it differently.  Thanks!

Offline Corribus

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Re: Difficulty with Vacuum Distillation
« Reply #1 on: August 19, 2014, 09:03:12 AM »
Are you using a condenser?
What men are poets who can speak of Jupiter if he were like a man, but if he is an immense spinning sphere of methane and ammonia must be silent?  - Richard P. Feynman

Offline baum0372

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Re: Difficulty with Vacuum Distillation
« Reply #2 on: August 19, 2014, 06:33:55 PM »
Yes the water condenser is in the distillation head I use.

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