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calcium hydroxide
(redirected from hydrated lime)

   Also found in: Dictionary/thesaurus, Medical, Acronyms, Encyclopedia, Wikipedia 0.01 sec.

calcium hydroxide

White solid, slightly soluble in water. A solution of calcium hydroxide is called limewater and is used in the laboratory to test for the presence of carbon dioxide.

It is manufactured industrially by adding water to calcium oxide (quicklime) in a strongly exothermic reaction:

CaO + H2O → Ca(OH)2

It is used to reduce soil acidity and as a cheap alkali in many industrial processes.



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? Mentioned in ? References in periodicals archive
 
application to the soil of calcium in various forms, generally as ground limestone, but also as marl, chalk, shells, or hydrated lime.
This may consist of a half-inch coating of Portland cement mortar (mixed in the proportion of 1 sack of Portland cement to 2 cubic feet of clean, well-graded sand, plus finely divided materials, such as hydrated lime or diatomaceous silica), or a plastic cement applied to the interior surface of the wall with a trowel.
application to the soil of calcium in various forms, generally as ground limestone, but also as marl, chalk, shells, or hydrated lime.
 
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