Medical Nitrogen (N2)

Nitrogen (N2) constitutes 78% of air by volume. It is a ‘permanent gas’, colourless, tasteless, odourless, and non-combustible. N₂ is very inert in a free state and incapable of supporting life, is intensely cold in a liquid state reaching -196 ˚C. One volume of Liquid Nitrogen gives approximately 700 volumes of gas at ambient conditions. N₂ forms many important compounds, such as Ammonia, Nitric Acid, and the Cyanides and is a constituent of all organised living tissues, animal or vegetable.

•    Freezing and preserving blood, tissues, semen and other biological specimens.   
•    Cryosurgery and cryopreservation   
•    A source of pneumatic pressure to power gas-operated medical devices    
•    As a coolant for Carbon Dioxide surgical lasers.  
•    As a component in many gas mixtures:
             A displacement medium for sterile equipment. 
             A non-oxidizing displacement medium in pharmaceutical vials.
             A propellant in pressurised aerosol type dispensers

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