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Separating pure salt from dirty rock salt

Separating pure salt from dirty rock salt

Science • Separation techniques

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The properties of the substances in a mixture help to determine the technique best suited to separate them. When mixtures contain more than two components, multiple techniques may be needed to separate them. Creating a solution of an existing mixture can allow a specific technique to be used for separation. Separating salt from rock salt requires: making a solution, filtration, and crystallisation.