Thursday, September 2, 2010

Seperation techniques

There are many ways to seperate a substance from its solution.
To seperate a solvent from a solution, we can use distillation(e.g: pure water from seawater)
To seperate a solute from a solution, we can use crystallisation(e.g: to purify, as the name implies, crystals) or evaporation to dryness(e.g: salt crystals from seawater)
To seperate a liquid from a solution of two liquids with significantly different boiling points, we can use fractional distillation(e.g: to seperate ethanol from a solution of ethanol and water)
To seperate an immiscible liquid from a mixture, we can use filtration(e.g: to seperate sand from a mixture of sand and water)
To seperate an immiscible liquid from another immiscible liquid with different densities, we can use seperation funnel(e.g: to seperate water from a mixture of water and oil)

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