Calcium-hydroxide definitions

A soft white alkaline powder, Ca(OH)2 , used in making mortar, cements, calcium salts, paints, hard rubber products, and petrochemicals.
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Slaked lime, Ca(OH)2, a white, crystalline compound prepared by the action of water on calcium oxide, used in making plaster, mortar, alkalies, bleaching powder, etc.
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(inorganic chemistry) A soft, white powder, Ca(OH)2, obtained by the action of water on calcium oxide; slaked lime.
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