Liquid nitrogen

Liquid Nitrogen

Liquid nitrogen (pronunciation: /ˈlɪk.wɪd ˈnaɪ.trə.dʒən/) is a diatomic liquid, which means it is composed of diatomic molecules, consisting of two nitrogen atoms bonded together. It is colorless, odorless, and extremely cold with a boiling point of -195.8 degrees Celsius.

Etymology

The term "nitrogen" comes from the Greek words "nitron" and "genes," which mean "native soda forming." The term "liquid" comes from the Latin word "liquidus," which means "fluid" or "flowing."

Properties

Liquid nitrogen is known for its extreme cold temperature. It is a cryogenic fluid that can cause rapid freezing on contact with living tissue, which may lead to frostbite. Despite this, it is colorless, odorless, tasteless, and non-toxic. It is also lighter than water and slightly less dense than the solid form of nitrogen.

Uses

Liquid nitrogen is used in many fields, including medicine, where it is used in cryotherapy to remove skin abnormalities, and in cryopreservation of blood, reproductive cells, and other biological samples. It is also used in the culinary world for flash freezing food and drinks, and in the industrial sector for cooling a variety of materials.

Related Terms

• Cryotherapy
• Cryopreservation
• Cryogenic
• Nitrogen
• Diatomic molecule

External links

• Medical encyclopedia article on Liquid nitrogen
• Wikipedia's article - Liquid nitrogen

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