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Decanting: A crude way of separating solids from liquids, as the liquid is poured away and collected in another container. Note that the insoluble solid should be able to down on standing and this method is not effective for obtaining clear liquid from the mixture especially when the insoluble solid is very fine and light.

: Separation of solids or groups of solids from the liquid in a mixture, using a medium through which the liquid can pass.

Used to separate a dissolved heat-liable (will decompose upon heating and hence can sublime) solid (solute) from a solution.

You will need a saturated solution to being with. A   is a solution that contains the maximum amount of solute dissolved in a given volume of solvent at a particular temperature. Do not mix this up with a  , which is a solution that contains lots of solute dissolved in it. The amount of solute in a concentrated solution may/may not be the maximum amount which can be dissolved in the solution

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