Filtering rock salt solution

Filtering rock salt solution

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Caption: Filtering impurities from rock salt. The natural rock salt has been ground and dissolved in warm water. All of the salt, sodium chloride, dissolves, leaving a suspension of mineral and organic impurities. These are filtered out in the filter funnel. The liquor that is collected is then evaporated leaving only the pure crystalline salt behind.

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Keywords: cut out, cut-out, cutout, demonstration, education, experiment, filter, filter funnel, filtering, halite, impure, impurity, mineral, natural, no-one, nobody, rock salt, school, school science, science education, sequence, sodium chloride, solution, white background

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