Page 21 - Curriculum Visions Dynamic Book

Acetone
 A column of aluminium oxide is prepared by filling it with acetone. The aluminium oxide acts as a chemical filter, releasing the components of the juice one at a time.
Aluminium oxide
Cotton wool support
Rubber stopper with hole
acetone: a petroleum-based solvent.
mixture: a material that can be separated out into two or more substances using physical means.
 The first component of the beetroot juice emerges from the base of the tube. It is a yellow substance.
 These are the first two components collected from the tube. Notice that they are slightly different colours. The substance on the right is chlorophyll (the green pigment in plants), while that on the left is called xanthophyll.
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Separated components of the beetroot drip from the the column into a test-tube.