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
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.
Cryogenic storage dewar
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A cryogenic storage dewar is a specialised type of vacuum flask used for storing cryogens, whose boiling points are much lower than room temperature. It is named after inventor James Dewar, who develo
Liquid nitrogen
…alone. As a cryogenic fluid that rapidly freezes living tissue, its handling and storage require thermal insulation. It can be stored and transported in vacuum flasks, the temperature being held constant at 77 K by slow boiling of the liquid. Depending on the size and design, the holding time of vacuum flasks ranges…
A self-pressurising dewar (silver) being filled with liquid nitrogen from a larger storage tank (white)