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calcium oxide

   Also found in: Medical, Acronyms, Encyclopedia, Wikipedia, Hutchinson 0.03 sec.
calcium oxide
n.
A white, caustic, lumpy powder, CaO, used as a refractory, as a flux, in manufacturing steel and paper, in glassmaking, in waste treatment, in insecticides, and as an industrial alkali. Also called lime3.
calcium oxide
Noun
same as quicklime
calcium oxide
A white solid compound that has a very high melting point and reacts with water to form calcium hydroxide. It is often prepared commercially by heating limestone. Calcium oxide is used as an alkali for treating acidic soils and in manufacturing steel, paper, and glass, and it is the main component of lime. Chemical formula: CaO.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.calcium oxide - a white crystalline oxide used in the production of calcium hydroxide
burnt lime, calcined lime, calx, fluxing lime, quicklime, unslaked lime, lime
atomic number 20, Ca, calcium - a white metallic element that burns with a brilliant light; the fifth most abundant element in the earth's crust; an important component of most plants and animals
oxide - any compound of oxygen with another element or a radical


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? Mentioned in ? References in periodicals archive
 
To create lime, calcium carbonate (CaCO3), naturally occurring in limestone, coral, chalk and shellfish shells, is heated, a process that releases carbon dioxide and results in the formation of calcium oxide (CaO).
Masa in the limelight; Masa (mah-sah): the Spanish word for "dough": ... by Art Culinaire
Chemical residue on the inside of the round-bottomed jars appears to be calcium oxide, a substance known to form during the salt-making process.
A seasoned ancient state: Chinese site adds salt to civilization's ... by Bower, B. / Science News
The contents are heated (heat is produced by a natural reaction from mineral, calcium oxide and water) to 145 degrees F in six to eight minutes - a hot spot will turn from pink to white on the thermal ink label.
GOOD TASTES by Daily News (Los Angeles, CA)
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