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A look at different types of techniques used to separate mixtures: magnetism, decant, filtration, distillation, chromatography.
4.2: Centrifuging/Decanting. These are used as alternative techniques to filtration. Decanting means carefully pouring off the liquid and leaving the undissolved solid, for example, sand, at the bottom of the beaker. It is quicker than filtration but separation may not be so effective.