Methods of seperation
Includes distillation - simple and fractional, chromotography, filtration and crystillisation.
- Created by: Lauran
- Created on: 29-04-13 21:14
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- Methods of Seperation
- Filtration
- Separates insoluble solids from a liquid.
- Crystallisation
- Seperates Soluble Solids from a solution
- Chromotography
- Different dyes move up the paper at different rates
- Can be used to identify dyes
- Distillation
- Simple
- Separates. liquid from a solution
- Solution is heated -> part with lowest boiling point evaporates -> Vapour is cooled, Condensed and collected -> Eventually salt will be left
- ONLY separate things with DIFFERENT boiling points
- Fractional
- Put mixture in flask with fractionating column on top-> heat -> liquid with lowest boiling point will evaporate first-> When thermometer matches the boiling point, it will reach the top of column -> Liquids with higher boiling points may also evaporate but the column is cooler toward the top so they will only get part way -> When the 1st liquid has been collected you raise temp and repeat
- Simple
- Filtration
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