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What is efflorescence?


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September 21, 2008 4:57AM

Efflorescence is the loss of water (usually as evaporation to air) in an aqueous solution of salts, leaving behind crusts of solid salt crystals, called efflorecent salts (see mineralogy). See also In botany, the process of blooming. In chemistry, a growth of salt crystals caused by evaporation salt water. In medicine, a rash or eruption on the skin.