Büchner flask
From the Simple English Wikipedia, the free encyclopedia that anyone can change
A Büchner flask (also called a vacuum flask, a filter flask, a side-arm flask or a kitasato flask) is a flask made of glass.
Contents |
[change] Structure
A Büchner flask has thick walls so that a pressure change will not break it. It has a hole in the top where a Büchner funnel can be put and a small tube in the side where a vacuum can be attached. The small tube has barbs on it so that the vacuum will not weaken.
[change] Uses
A Büchner flask can be used with a Büchner funnel for separating solids and liquids. Water is poured into the Büchner funnel and the liquid passes through filter paper and is sucked up by a vacuum attached to the side of the Büchner flask, while the solid stays behind in the Büchner funnel.
The Büchner flask can also be used as a vacuum trap in a vacuum line to ensure that no fluids are carried over from the aspirator or vacuum pump (or other vacuum source) to the evacuated apparatus, or vice versa.
[change] History
It is commonly thought to be named after the Nobel Laureate, Eduard Buchner, but it is actually named after the industrial chemist Ernst Büchner.
[change] See also
- Büchner funnel - Very recommended
- A Büchner funnel manufacterer
- Experiment using Büchner funnels
- More examples of Büchner funnels
| Laboratory | |
|---|---|
| Equipment | Agar plate - Aspirator - Bunsen burner - Calorimeter - Colorimeter - Centrifuge - Fume hood - Microscope - Microtiter plate - Plate reader - Spectrophotometer - Thermometer - Vortex mixer - Static mixer |
| Flasks | Erlenmeyer flask, Florence flask, Volumetric flask, Büchner flask |
| Other Glassware |
Beaker - Boiling tube - Büchner funnel - Burette - Conical measure - Crucible - Cuvette - Gas syringe - Graduated cylinder - Pipette - Petri dish - Separating funnel - Soxhlet extractor - Test tube - Thistle tube - Watch glass |
