Separating Mixtures

Separating Mixtures

1. What does Separating Mixtures mean : A mixtures contain two or more substances that have not recreated chemically with each other.

   • A mixture can be separated by physical methods
     • Chromatography
       • Chromatography - Main idea chomatography

2. Filtration

   • Filtration can be used to separate a solid from a liquid
     • This only works if the solid cannot dissolve in the liquid

3. Crystallisation

   • Crystallisation separates solids that have dissolved (solutes) in a liquid (solvent).
     • This is done by carefully heating the solution so that the liquid evaporates.
       • This leaves crystals of the solid behind
         • The crystals can then be washed with cold water to remove impurities.

4. Distillation

   • Distillation separates two liquids from each other.
     • Stages of distillation
       • Heating -> evaporating -> cooling -> cordensing

5. Fractional Distillation