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SEPARATION OF MIXTURE TECHNIQUES

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Presentation on theme: "SEPARATION OF MIXTURE TECHNIQUES"— Presentation transcript:

1 SEPARATION OF MIXTURE TECHNIQUES
These methods are by physical means. The chemical properties of each pure substance after separation are not changed. The key is to find a physical property that one part of the mixture does have but the other doesn't.

2 1) Magnetism A magnetically susceptible material is extracted from a mixture depending on a magnetic force.

3 2) Filtration Separation of mixtures of an insoluble solid and a liquid. It depends on solubility. The filtrate (liquid) is the one we want to keep. Residue on the filter paper is the solid (may or may not keep) Filtrate  liquid Residue  solid

4 Separation of a liquid and a soluble solid.
3) Evaporation Separation of a liquid and a soluble solid.

5 4) Decanting Used to separate a liquid from an insoluble solid. The solid that stays in the bottom is the one we want to keep.

6 5) Distillation Boil off and condense the more volatile component (easier to evaporate) in a liquid mixture. Depends on volatility (The one that boils first will condensed back to liquid).

7 6) Chromatography Involves the separation of different dissolved substances as they travel through a material.

8 7) Centrifugation Involves the use of the centrifugal force. More dense components migrate away. Solid particles (pellet) remain on the bottom and will be kept. Liquid (Supernatant) will be disregarded.


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