Tuesday, 17 July 2012

Lesson 7: Separation Techniques

CHROMATOGRAPHY:

The solvent is the mobile phase and the chromatography paper is the stationary phase.

Adsorption - the property of how well a substance in the mixture sticks to the chromatographic column. The higher the adsorption the slower the substance will move along the column.

Solubility - the property of how well a substance in the mixture dissolves into the solvent. The higher the solubility the faster the substance will move along the column.

This is how it looks like:



















This how fractional distillation looks like:



























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