dry ice


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dry ice:

see carbon dioxidecarbon dioxide,
chemical compound, CO2, a colorless, odorless, tasteless gas that is about one and one-half times as dense as air under ordinary conditions of temperature and pressure. It does not burn, and under normal conditions it is stable, inert and nontoxic.
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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.

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.

dry ice

solid carbon dioxide, which sublimes at --78.5?C: used as a refrigerant, and to create billows of smoke in stage shows
References in periodicals archive ?
For people in the ice cream business, dealing with dry ice can be an occupational hazard.
At the time, (https://www.jpl.nasa.gov/news/news.php?release=2013-200) NASA explained that the gas produced from the sublimating dry ice was probably concentrated below the frozen hunk, creating "cushions" that help it flow smoothly down the slope and dig its channels into the land.
* Non-abrasive: Dry ice is a very soft media and can clean sensitive electronic equipment, such as printed circuit boards, without etching, profiling or changing surface dimensions.
Dry ice blasting creates zero waste, resulting in saving time and money compared to conventional means.
Cold Jet's dry ice production equipment is said to offer the best output to footprint ratio and is made to UL, USDA, FDA and CE standards.
Careful modeling by Pilorget and Forget shows that the annual frosting of dry ice can become transparent enough to allow sunlight to pass through to ground level.
Dry Ice is basically compressed and frozen carbon dioxide, and is particularly useful for freezing and keeping goods frozen due of its very cold temperature, -78.5C, and as it changes from a solid back to a gas, is mess free.
A new process using dry ice as physical blowing agent has been developed at IKV [21].
| Professor John Kilcoyne creates a dry ice waterfall, |above, and student Nicole Carne, 13, of Coulby Newham, meets Aristotle the Harris hawk
Dry ice cleaning eliminates equipment damage, reduces scrap product when compared to alternative cleaning methods and allows for complete online cleaning so production time can be maximized and touch-up cleanings are safe and easy.
The dry ice-based BioT ULT Transporter is a portable system that addresses common methods of cooling that are insufficient, such as placing valuable biospecimens on dry ice in a styrofoam box.
The explosion occurred when some dry ice, which is solid carbon dioxide, was being unloaded from a truck in an alley on the company's premises.