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calcium hydroxide
(redirected from hydrated lime)

    Also found in: Dictionary/thesaurus, Medical, Acronyms, Encyclopedia, Wikipedia 0.03 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
 
Tests also detected hydrogen sulfide gas and hydrated lime was found on the property, he said.
DISPUTE OVER WASTE SETTLED by Daily News (Los Angeles, CA)
Unlike garden lime, hydrated lime (builder's lime) is heated to a high temperature (similar to cement) to change its molecular structure.
Working your walls with earth plaster: play in the mud with earth ... by Curry, Mollie / New Life Journal
Ohashi confirms this, but he points out that hydrated lime couldn't legally be used against frogs unless it were to receive federal approval as a pesticide.
Hawaii's hated frogs: tiny invaders raise a big ruckus by Raloff, Janet / Science News
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