Separating Techniques

1. Physical Separation/Mechanical Separation

• handpicking

• separating solid components of heterogeneous mixtures using hands or forceps

2. Magnetic Separation/Magnetism

• separating metals and non-metals using magnets

3. Filtration

• used to separate insoluble solid from a liquid

• uses filter like mesh cloth or filter paper

4. Decantation

• technique used in separating heterogeneous mixtures made up of solid and liquid or two different liquids with different density.

5. Distillation

• process of separating liquids from a solution

• separation technique is based on the boiling point of the substances in the mixture

6. Evaporation

• the process in which a liquid changes into gaseous form on heating

• allowing the liquid to evaporate, leaving the soluble solid behind

7. Paper Chromatography

• separates the components of mixtures that are based on the ability of each component to draw across the surface of another material