Thursday, 6 October 2011

Separation

Separating Mixtures
What is separation? Separation is essentially a process in which a mixture is converted into two or more distinct products.

There are several basic techniques for separation:
-Filtration: pass mixtures through porous filters

-Distillation: heating a mixture can cause low boiling components to volatize

-Chromatography: components flow over the material at different speeds.

-Crystalization + Extraction: solids are separated by filtration or floatation

-Hand Separation: separated by using magnets + sieve


-Evaporation: boil away the liquid, solid remains

Chromatography-^Components flow over the material at different speeds^

There are different components within the mixtures, along with different properties
-High density/Low density                                    -Reactive/Inert
-Volatile/Non-volatile                                           -Magnetic/Non-Magnetic
-Soluble/Insoluble                                                -Polar/Non-polar

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