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Separating Mixtures

Separating Mixtures. How do we separate …?. Filtration Chromatography Centrifuging Evaporating Dissolving.

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Separating Mixtures

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  1. Separating Mixtures

  2. How do we separate …?

  3. Filtration • Chromatography • Centrifuging • Evaporating • Dissolving

  4. Filtration - The process whereby fluids pass through a filter or a filtering medium. A process like sieving, where large particles are caught on filter paper, whilst solutions pass through

  5. Centrifuges rotate containers of • liquids to separate suspended • materials with different densities. • Centrifuges separate different components of human blood or milk and to clarify solutions. A high speed separator can rotate at great speed to separate fat (cream) from milk. • The spin drier in washing machines is a type of centrifuge that throws out the liquid by the "centrifugal force" of the rotation.

  6. http://www.rocketguy.com/rocket/cent_trial.html

  7. Centrifuging

  8. Evaporationchanges state from a liquid to a gas. Evaporation occurs only from the surface of the liquid.

  9. Distillation is a method used to separate a liquid from a solution through boiling and condensation Rose oil distillation

  10. Chromatography ( colour writing) is used to separate small amounts of chemicals so that they can be analysed. • Different substances or different components move at different speeds through a strip of wet paper a gel or a gas.

  11. References • Physics and Chemistry • IES Jaume Salvador i Pedrol • February 2009 • http://blocs.xtec.cat/fqmms/files/2009/02/separating-mixtures.pdf • www.eastmarinedrive.com/edulinks/Xfiles/separation.ppt

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