Dry ice
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Dry ice is the solid form of carbon dioxide. It is commonly used for temporary refrigeration as CO2 does not have a liquid state at normal atmospheric pressure and sublimes directly from the solid sta
Subliming dry ice pellet, with white frost on the surface
Dry ice being used to cool beverages in Central Park, New York
Sublimation
Dry ice in water
Liquid nitrogen
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Liquid nitrogen is nitrogen in a liquid state at low temperature. It has a boiling point of about −196 °C. Liquid nitrogen is produced industrially by fractional distillation of liquid air. It is a co
Dry ice
…Dry ice is also produced as a byproduct of cryogenic air separation, an industry primarily concerned with manufacturing extremely cold liquids such as liquid nitrogen and liquid oxygen. In this process, carbon dioxide liquefies or freezes at a far higher temperature compared to that needed to liquefy nitrogen and…
Liquid nitrogen
Students preparing homemade ice cream with a dewar of liquid nitrogen
Liquid nitrogen may be used for cooling an overclocked computer, when an extreme measure of cooling is needed.
A milkshake prepared with liquid nitrogen. Nitrogen vapour can be seen emanating from the top of the glass.