Difference between revisions of "Büchner flask"
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| − | A '''Büchner flask''', also known under many other names like '''vacuum flask''', '''filter flask''', '''suction flask''', '''side-arm flask''' or '''Kitasato flask''', is a thick-walled [[Erlenmeyer flask]] used in combination with a [[Büchner funnel]] and a vacuum source in vacuum filtration. | + | A '''Büchner flask''' (incorrectly, but often spelled '''Buchner funnel'''), also known under many other names like '''vacuum flask''', '''filter flask''', '''suction flask''', '''side-arm flask''' or '''Kitasato flask''', is a thick-walled [[Erlenmeyer flask]] used in combination with a [[Büchner funnel]] and a vacuum source in vacuum filtration. |
==General== | ==General== | ||
Revision as of 16:06, 5 November 2017
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A Büchner flask (incorrectly, but often spelled Buchner funnel), also known under many other names like vacuum flask, filter flask, suction flask, side-arm flask or Kitasato flask, is a thick-walled Erlenmeyer flask used in combination with a Büchner funnel and a vacuum source in vacuum filtration.
General
A Büchner flask consists of a with a thick-walled Erlenmeyer flask which has a short glass tube and hose barb protruding about 1-2 cm from its neck. Some Büchner flasks lack the lateral vacuum adapter, and instead have a hole, where a plastic vacuum adapter is added. While this might sound complex, such flasks have a few advantages: are easier to clean and there's less risk of breaking the lateral tube, which would make a typical side-arm flask unusable. Some Büchner flasks have ground glass joint.
Availability
Büchner flask can be bought from lab suppliers.
