Dry Ice (redirected from Cardice)

dry ice: see carbon dioxide.

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dry ice

Carbon dioxide in solid form. It is a dense, colourless substance, resembling compressed snow, that at normal atmospheric pressure passes directly from solid to vapour (see sublimation) at −109.3 °F (−78.5 °C). Commonly available in blocks, it is used chiefly to keep foods, vaccines, and other perishable products cold during shipping or storage.

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dry ice

solid carbon dioxide, which sublimes at --78.5?C: used as a refrigerant, and to create billows of smoke in stage shows

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dry ice [¦drī ′īs]

(inorganic chemistry)

Carbon dioxide in the solid form, usually made in blocks to be used as a coolant; changes directly to a gas at -78.5°C as heat is absorbed.

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Dry Ice 

solidified carbon dioxide (CO₂). Under ordinary conditions of atmospheric pressure and room temperature, dry ice changes directly to a gas, bypassing the liquid phase. Its name derives from its physical resemblance to ice. Industrial-grade dry ice has a density of approximately 1,560 km/m³ and absorbs approximately 590 kilojoules/kg (140 kilocalories/kg) during sublimation.

Dry ice is used to refrigerate food products, for example, ice cream, during shipment and storage. It is also used in producing low temperatures (approximately –79°C) in scientific research and in assembling and testing certain units in machine building.