Liquid Nitrogen

About Liquid Nitrogen

• It is an inert, colorless, odorless, noncorrosive, nonflammable, and extremely cold element.
• It is a cryogenic liquid (Cryogenic liquids are liquefied gases that have a normal boiling point below –130°F (–90°C).
• Liquid nitrogen has a boiling point of –320°F (–196°C).
• Health impacts:
  • Liquid nitrogen can scorch the organ or part of the body it contacts, making it appear like frost bites.
  • It can damage the lips, tongue, throat, lungs, and stomach. It may cause lesions or burn tissues.
  • If it reaches the stomach, the organ could get perforated. In the lungs, it could produce CO2 and the person could become unconscious.
• Applications
  • It is used to cool and freeze food rapidly.
  • In food production and industrial processes, a cooling tray filled with liquid nitrogen is used to rapidly cool materials or equipment by immersing the product in nitrogen.
  • In the wellness and sports industry, cryosaunas with liquid nitrogen vapor are used for cryotherapy.
  • Liquid nitrogen test chambers are used in technology and material sciences to test the performance and durability of materials and devices at extremely low temperatures.

Q1: What is Cryosurgery?

Cryosurgery is a minimally invasive surgical technique that involves the use of extreme cold to destroy or remove abnormal tissues, such as tumors or warts. The procedure involves applying a freezing agent, such as liquid nitrogen or argon gas, directly onto the targeted area.

Source: Liquid nitrogen can be used only to preserve food, stress food safety officials