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Author: Subject: Micro scale vacuum distillation
Slimz
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[*] posted on 24-9-2007 at 12:39
Micro scale vacuum distillation

Microscale vacuum distilation can be a pain and often lead to low yields...

try this setup


[Edited on 24-9-2007 by Slimz]



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DrP
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[*] posted on 25-9-2007 at 00:53


Problem here would be that the slightest bit of bumping and the sample your collecting will be contaminated. I prefer to have the glass vial after the condenser in the more traditional way. You can chill the collection flask to help with the collection.
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Slimz
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[*] posted on 25-9-2007 at 04:13


thats not a problem with this setup... unless your flask is over full...



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Phosphor-ing
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[*] posted on 25-9-2007 at 08:14


You apparently haven't seen the way vacuum distillations can bump.
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Slimz
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[*] posted on 25-9-2007 at 08:36


well that is a factor that would have to be dealt with.. the thing here was to make the yield higher when working with tiny quantities



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[*] posted on 25-9-2007 at 08:45


I have used this type of apparatus for microscale distillations with good results.

Amounts have been >1ml though. Might be too big for <1ml.
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Slimz
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[*] posted on 25-9-2007 at 09:04


interesting files

5032.pdf of size 87.568 KB
http://www.filefactory.com/file/a63d17/

8261a.pdf of size 487.025 KB
http://www.filefactory.com/file/cc9033/



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