Flashcards
Filtration under reduced pressure
Cards in this deck (10)
- 1What is the purpose of this type of separation?Separating a solid product from a solvent or liquid reaction mixture.
- 2Draw a labelled diagramBuchner flask
Buncher funnel
Rubber bung
Filter paper
Filter pump
Pressure tubing - 3Step 1.Connect one end of the pressure tubing to the filter pump whilst attaching the other end of the rubber tubing to the buchner flask
- 4Step 2.Fit the Buchner funnel to the Buchner flask ensuring that there is a good tight fit using a rubber bung
- 5Step 3.Swrich on the tap to which your filter pump is attached
- 6Step 4.Check for good suction by placing your hand across the top of the funnel
- 7Step 5.Place a piece of filter paper inside the Buchner funnel and wet it with the same solvent used in preparing the solid.
- 8Step 6.Slowly pour the reaction mixture from a beaker into the centre of the filter paper to filter it.
- 9Step 6.Rinse out the beaker with the solvent so that all of the solid crystals collect in the Buchner funnel
- 10Step 7.Rinse the crystals in the Buchner flask with more solvent and leave them under suction for a few minutes to dry.
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- User has deleted their subject information Flashcards on Filtration under reduced pressure, created by Deleted user on 09/06/2018.
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- Created by josephw weetch · Jun 9, 2018
- Copied by josephw weetch · Jun 9, 2018
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