Kids experiments - so successful chromatography

05-16  Source: Network gathering  Views:4 


Kids experiments - so successful chromatography

Kids experiments illustrate chemical issues.

Carry out the paper

Kids experiments in chemistry are often simple to perform and can represent chemical facts vividly.

  1. Drill for Chromatography experiment in a first step a small hole in the center of a round filter.
  2. Draw around the hole a circle with a diameter of about 1 cm. Draw these then made with the black marker you.
  3. Now you can roll up the second round filter to a small wick, which you plug into the hole of the pierced round filter.
  4. Put some water in the Petri dish and place the filter on it; the wick is immersed in the liquid.
  5. After the round filter has reached with the water almost the filter edge, stop the test.

Watch Kids experiments and explain

  • After the round filter is placed on the Petri dish, you can make some interesting observations.
  • The paper filter wick the water is sucked up and the felt pen mark on the round filter dissolves slowly.
  • After some time, you can then identify different colored rings on the filter. Accordingly, the marker pen color is composed of different colors mixture which can be fractionated by chromatography into the individual components.
  • The separation and the color rings can be explained by the individual dyes, adhering differently fixed to the paper. Remember, the lower the adhesive strength of single dye and the better water this, the farther is the spot moves away from its starting point.

Have fun experimenting! Please note: Dry experiments - also children's experiments - may only be carried out by qualified personnel.

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