Flashcards
Recrystallisation
Cards in this deck (9)
- 1Purpose of recrystallisationPurify impure solids
- 2Step 1.Pour solvent into a conical flask.
- 3If solvent is flammableHeat over water bath
- 4If solvent is waterWarm by placing the conical flask on a tripod and a gauze over a Bunsen
- 5Step 2.Tip the impure solid into a second conical flask
- 6Step 3.Slowly add the solvent to the impure sample until it dissolves in the solvent.
- 7How much solvent should you add?The minimum volume required to dissolve the solid.
- 8Step 4.Once solid has dissolved, allow solution to cool. Crystals of the desired product should form in the conical flask.
- 9Step 5.When no more crystals form, filter the crystals under reduced pressure to obtain the DRY crystalline solid.
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- User has deleted their subject information Flashcards on Recrystallisation, created by Deleted user on 09/06/2018.
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- Deleted user · Jun 2018
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- Jun 9, 2018
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- Created by josephw weetch · Jun 9, 2018
- Copied by josephw weetch · Jun 9, 2018
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