MadSci Network: Chemistry

Subject: Bumping while distilling with vacuum

Date: Wed Sep 26 15:09:25 2001
Posted by Ole Rommert
Grade level: grad (science) School: Private
City: No city entered. State/Province: No state entered. Country: No country entered.
Area of science: Chemistry
ID: 1001531365.Ch

While distilling herbs to get essential oils I use vacuum to avoid too much heat 
that might destroy some of the substances. While doing it, there is a strong 
tendency for the herbs to "bump" up into the condenser. I.e. a kind of 
"explosion" inside the vessel.

My question is: What exactly causes this? The more detailed, the better.
And of course: What can be done to cure it?

Best regards: Ole

Re: Bumping while distilling with vacuum

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