Friday, August 27, 2010

Separation Technique

They are many different separation techniques
-Magnetic attraction
-Filtration
-Evaporation to dryness
-Distillation
-Chromatography
-Sublimation
-Using separating funnel

Magnetic attraction is used to separate magnetic objects such as steel from non-magnetic objects in a mixture

Filtration is used to separate insoluble solids from the liquid in solid-liquid mixture.
The insoluble solid left behind on the filter paper is called residue.

Evaporation to dryness is used to separated dissolved solid which does not decompose on heating

Distillation is used to separate a liquid from solid-solid solution or liquid-liquid solution

Fractional Distillation is used to separate miscible liquids with different boiling points.

Chromatography is used to separate different components in a liquid or gaseous mixture.

Sublimation is used to separate a solid which sublimes when heated.

Using a separation funnel is used to separate two immersible liquid(capable of being completely immersed in water without suffering damage), such as oil and water

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