Liquid nitrogen

Liquid nitrogen—LN2—is nitrogen in a liquid state at low temperature. Liquid nitrogen has a boiling point of about −196 °C (−321 °F; 77 K). It is produced industrially by fractional distillation of liquid air. It is a colorless, mobile liquid whose viscosity is about one tenth that of acetone. Liquid nitrogen is widely used as a coolant.

"LN2" redirects here. For the high-speed railway line in France, see LGV Atlantique. For the natural logarithm of 2, see Natural logarithm of 2.
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