Separation Techniques

Separation Techniques

1. Seperating Funnel

   • When two substances have not mixed eg Oil
   • The mixture is poured into the funnel and liquid A(Oil) sits on top of liquid B(water) at the bottom.
     • The tap is then opened and the water pours out first. The tap is closed when the water has all gone

2. Centrifuge

   • Used to seperate solid particles from a liquid in a suspension

3. Use a Magnet

   • Separate a magnetic substance from a mixture
   • FeS → Fe+S

4. Distillation (check diagrams and notes)

5. Chromatography

   • A solvent in a beaker with a piece of paper hanging into it. The paper has a spot of ink
   • As the solvent rises up the paper, the individual dyes within the ink spot separate out. The most soluble dye will separate out first and will travel the furthest. It is the top spot on our chromatogram

6. Filtration

   • If a solid has not dissolved into a liquid
   • Filter paper is placed inside of a funnel and a container beneath. The solid remaining after the substance is put through is the residue. The liquid that has passed through the paper is the filtrate
   • The residue can be dried by spreading it on the paper and allowing the liquid to evaporate