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Setup: vacuum aspirator pump, distillation apparatus with stirring (instead of a bubbler). Partial vacuum around 5" Hg.

What would you suggest to hold the vacuum set-point?

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  • $\begingroup$ Somewhere there is a vacuum pump, isn’t there? Actually controlling the vacuum level (as opposed to just pumping on it) depends on the set up and your equipment. $\endgroup$ – Jon Custer Nov 9 '19 at 15:35
  • $\begingroup$ Is it possible to degas the solution before beginning the distillation? $\endgroup$ – Andrew Nov 9 '19 at 15:44
  • $\begingroup$ A fine hand with the faucet to which your pump is attached to, or a vacuum controller. $\endgroup$ – Karl Nov 9 '19 at 20:28

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