Liquid nitrogen is the most commonly used element in cryogenics and is legally purchasable around the world.

Liquid nitrogen, a fluid resembling water in appearance, but with 80. 8 % of the density ( the density of liquid nitrogen at its boiling point is 0. 808 g / mL ), is a common cryogen.

** Liquid nitrogen

Liquid nitrogen boils at 77 K, facilitating many experiments and applications that are less practical at lower temperatures.

Liquid nitrogen spray tank

Liquid nitrogen boils at 77 K, facilitating many experiments and applications that are less practical at lower temperatures.

Liquid nitrogen, liquid helium, and dry ice are used as coolants in extreme cases, such as record-setting attempts or one-off experiments rather than cooling an everyday system.

Alternatively, heat may be supplied at ambient temperature and the heat sink maintained at a lower temperature by such means as cryogenic fluid ( see Liquid nitrogen economy ) or iced water.

* Liquid nitrogen cryosurgery is safe for pregnancy.

Liquid nitrogen is circulated through the end of this device.

Liquid nitrogen, supplied in pressurized steel bottles, is sometimes used in similar fashion.

Liquid nitrogen is nitrogen in a liquid state at an extremely low temperature.

Liquid nitrogen is a colorless clear liquid with density of 0. 807 g / mL at its boiling point and a dielectric constant of 1. 4.

Liquid nitrogen is often referred to by the abbreviation, LN < sub > 2 </ sub > or " LIN " or " LN " and has the UN number 1977.

Liquid nitrogen can easily be converted to a solid by placing it in a vacuum chamber pumped by a rotary vacuum pump.

Liquid nitrogen freezes at.

Liquid nitrogen is a compact and readily transported source of nitrogen gas without pressurization.

Liquid nitrogen is produced commercially from the cryogenic distillation of liquified air.

Liquid nitrogen may be produced for direct sale, or as a byproduct of manufacture of liquid oxygen used for industrial processes such as steelmaking.

* Liquid nitrogen vehicle

Liquid nitrogen has a lower boiling point at − 196 ° C ( 77 K ) than oxygen's − 183 ° C ( 90 K ), and vessels containing liquid nitrogen can condense oxygen from air: when most of the nitrogen has evaporated from such a vessel there is a risk that liquid oxygen remaining can react violently with organic material.