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Find patient medical information for calcium hydroxide on WebMD including its uses, side effects and safety, interactions, pictures, warnings.
Calcium hydroxide is commonly used to prepare lime mortar. One significant application of calcium hydroxide is as a flocculant, in water and sewage treatment. It forms a fluffy charged solid that aids in the removal of smaller particles from water, resulting in a clearer product.
It is noteworthy that CaO is also a separate mineral species, named lime. A pyrometamorphic mineral, it is rare, as it is unstable in moist air quickly turning into portlandite, Ca(OH)2.
