Requirements.
Chromatography paper.
Ink.
Dyes.
Colouring agents.
Water and small plate or bowl with a flat bottom.
Procedure.
Draw a line with a pencil on the chromatography paper and place spots of ink or dye on the pencil line.
Place the paper uprightly in water (solvent) in the small plate or bowl with flat bottom.
As the paper is lowered into the solvent, some dye spread on the paper. As the solvent
soaks up the paper, it carries the mixture with it. Different components of the mixture
will move at different rates. This separates the mixture.
The paper continues to absorb the solvent and the dye spreads further up the paper.
Compare your observations with those of others, make your conclusion.
Observation and explanation.
Paper Chromatography is a method used to separate Coloured mixtures into their
different parts.
Paper chromatography is commonly used to separate pigments, dyes and ink.
Paper chromatography works because ink contains different colours.
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