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Separation of Mixtures

the distillation apparatus prepared for the demonstration

Hazards

Methanol is very flammable.

Materials

  • distillation apparatus with thermometer
  • thermo well heater and lab jacks
  • graduated cylinder
  • small crystallizing dish
  • matches

Procedure

Solid-Solid

  • Iron filings
  • sucrose
  • large white stir bar
  • beaker of water

Separate sugar and iron with a magnet or by dissolution of the sugar in water.

Solid-Liquid

  • salt water mixture
  • crystallizing dish
  • hot plate

Evaporate water from a brine solution.

Liquid-Liquid

  • 50:50 methanol
  • H2O mixture blue dye

Distill methanol. The distillate can be lit with a match. Allow at least 30 minutes for the distillation.

Liquid-Gas

Shake a bottle of soda water. Open the bottle and show the release of gas.

Disposal

All materials are disposable.

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