In the previous experiment the water completely evaporated. Now water vapour will be cooled and transferred into an second container.

What to do
  1. Distillation on an electric hotplate in a demo experiment  (Photo 1, 3, 4) with 20 ml.
2. Distillation in a student experiment with 3 ampoules (Photo 5) with 2 ml.
Material
Tray, 2 infusion bottles 50 ml with stopper, 4 ampoules (5ml) high with stopper, 2 plastic pipette tips, 50 cm infusion tube, toilette paper, cotton wool, scissors, insulated copper wire, 2 boiling aids (Photo 2: coiled copper wire), electric hotplate, digital thermometer, water coloured by Cola or stale Cola.
Experiment 1
1. Connect a 50-ml infusion bottle and an ampoule with an insulated copper wire.
2. Pierce the stopper of the infusion bottle twice: One pipette tip from downside, a second one from upside.
3. Add 20 ml of water, some Cola and a boiling aid to the bottle, close it, place it on the electric hotplate, start heating.
4. Press 20 cm of infusion tube over the thin end of the pipette tip.
5. Fill the second infusion bottle with cooling water. Dip the ampoule into it (Photo 1).
6. Fix the free end of the tube in the upper part of the ampoule.
7. Press the sensor of the digital thermometer through the 2. pipette tip.
9. Watch the increase of temperature, changes in the tube and in the ampoule (Photo 3 and 4).
10 Stop the experiment when 2 ml of liquid have collected in the ampoule.
Observation
The coloured water boils, colourless drops appear inside the tube and drop into the ampoule.
Explanation
Water evaporates, the substances dissolved do not. The vapour condenses during cooling.
Experiment 2 (Photo 5)
The electric hotplate is replaced by a burner made from an ampoule and the infusion bottle by another ampoule.
Observation and Explanation
Like in experiment 1.  .