busybird
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vacuum distillation 1 mmhg - 30 mmhg
Can anyone recommend a vacuum pump for vacuum distillation at ranges 1 mm hg to 30 mm hg ? I was told I must have a turbo vac. Any suggestion on the
pump I need?
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Magpie
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I don't know what a turbo pump is. This subject comes up frequently here. I kindly suggest that you use the search engine.
The single most important condition for a successful synthesis is good mixing - Nicodem
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Metacelsus
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Magpie: https://en.wikipedia.org/wiki/Turbomolecular_pump
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Magpie
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You don't have to have a turbo pump to reach P=1-30 mmHg. I reach that pressure range routinely in vacuum distillations when using a Harbor Freight
single-stage pump (~$100).
The single most important condition for a successful synthesis is good mixing - Nicodem
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Chemosynthesis
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Quote: Originally posted by Magpie  |
You don't have to have a turbo pump to reach P=1-30 mmHg. I reach that pressure range routinely in vacuum distillations when using a Harbor Freight
single-stage pump (~$100). |
You get down to 1mmHg?
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Magpie
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Yes - here's an example where I was distilling n-caproic acid:
Enlarge, then look at the Bennert manometer in the background. The height of the two mercury columns is very close to being equal. Each gradation is
= 1mmHg.
[Edited on 25-11-2014 by Magpie]
The single most important condition for a successful synthesis is good mixing - Nicodem
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Chemosynthesis
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Wow, thank you for informing me. That is lower than I expected, and giving me ideas on my next shopping excursion.
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