Separating salt from rock salt

Separating salt from rock salt

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Credit: TREVOR CLIFFORD PHOTOGRAPHY/SCIENCE PHOTO LIBRARY

Caption: Separating salt from rock salt. Rock salt being separated from its impurities. Crushed rock salt is added to warm water to dissolve the salt and filtered to remove any insoluble impurities. The solution is then heated gently to evaporate off the water. Here the pure salt is left behind after heating.

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Keywords: adult, apparatus, beaker, bunsen burner, caucasian, chemical, chemistry, close-up, detail, device, dissolved, equipment, evaporated, evaporation, experiment, experimenting, filtered, heating, human, one person, people, preparation, preparing, purification, purifying, rock salt, science education, separating, separation, warm water, white

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