A demonstration of the key points of the required practical to investigate the separation of substances using paper chromatography for GCSE chemistry and combined science. This short film begins ...

As the solvent soaks up the paper, it carries the mixtures with it. Different components of the mixture will move at different rates. This separates the mixture out.

One way they can do this is to use a process called chromatography. In the activity below ... The reason why the colors separate has to do with the chemicals that make up the color, the water, and the ...