Sulaiman
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Purpose of vacuum-claisen ?
As part of a job lot of used glassware I have a claisen-flask with a (presumed) vacuum jacket where you often find a mini-vigreaux column.
I can't get to it at the moment so a Paint sketch
is there a specific temperature range where this is useful ?
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BromicAcid
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Likely an area that could be filled with saddles, helices, etc, to make a packed column.
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Deathunter88
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Heat can only be lost through a vacuum through radiation. Thus it stops heat loss through conduction and convection. It's basically insulating that
part of the glassware, similar to how a vacuum thermos works.
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