Liquid Nitrogen
Liquid nitrogen is nitrogen in a liquid state at an extremely low temperature Boiling Point -196 degree centigrade. It is a colorless clear liquid with a density of 0.807 g/ml at its boiling point and a dielectric constant of 1.43.Liquid nitrogen is denoted as LN2, LN, or LIN
Liquid nitrogen has many uses, mainly based on its cold temperature and low reactivity. Examples of common applications include:
- As an inert Media and in Petroleum Industry for oil push up. Pipe line purging
- Freezing and transport of food products.
- Cryopreservation of biological samples, such as sperm, eggs, and animal genetic samples.
- Coolant for superconductors, vacuum pumps, and other materials and equipment.
- Cryotherapy to remove skin abnormalities.
- Shielding materials from oxygen exposure.
For quick freezing of water or pipes to allow work on them when valves aren't available.