what is dry ice,why is it called dry ice?
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Dry ice or dry ice is called carbon dioxide (CO2) in the solid state. It receives this name because, despite resembling normal ice or snow due to its appearance and temperature, when sublimated it leaves no residue of moisture because its base is not water and its natural state is gaseous even at low ambient temperatures. It has a sublimation temperature of -78.5 ° C (at an atmosphere of pressure).
Since it is carbon dioxide, it can also be used to fix metal, to remove floor tiles and to remove warts. It can also be found in tools such as fire extinguishers. One of the main uses of dry ice is to preserve perishable foods. It is also used by ice cream parlours to keep the ice cream they sell cold. In the world of spectacle it is also sometimes used to release at ground level a very visible white vapor, similar to cold fog.
Since it is carbon dioxide, it can also be used to fix metal, to remove floor tiles and to remove warts. It can also be found in tools such as fire extinguishers. One of the main uses of dry ice is to preserve perishable foods. It is also used by ice cream parlours to keep the ice cream they sell cold. In the world of spectacle it is also sometimes used to release at ground level a very visible white vapor, similar to cold fog.
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Dry ice, carbon dioxide in its solid form, a dense, snowlike substance that sublimes (passes directly into the vapour without melting) at −78.5 °C (−109.3 °F), used as a refrigerant, especially during shipping of perishable products such as meats or ice cream. In the production of dry ice, advantage is taken of the spontaneous cooling that occurs when compressed, liquefied carbon dioxide at −57 °C (−71 °F) or lower is allowed suddenly to expand to atmospheric pressure: the liquid freezes to a finely divided solid that is compacted into cakes, weighing about 20 kg (45 pounds).
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