Calcium-oxide definitions

A white, caustic, lumpy powder, CaO, used as a refractory, as a flux, in glassmaking, in waste treatment, in insecticides, as an industrial alkali, and in manufacturing steel, paper, and building materials.
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A white, soft, caustic solid, CaO, prepared by heating calcium carbonate; lime: used in making mortar and plaster, in ceramics, etc.
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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.
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(inorganic chemistry) A white powderous substance, CaO, commonly known as lime or quicklime; normally made by heating calcium carbonate.
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