Expansion ratio

 ( Cryogenics ) 

The expansion ratio of a liquification and cryogenic substance is the volume of a given amount of that substance in liquid form compared to the volume of the same amount of substance in gaseous form, at room temperature and normal atmospheric pressure.

Rick Houghton (2025). 9780849379680, CRC Press. . ISBN 9780849379680

If a sufficient amount of liquid is vaporized within a closed container, it produces pressures that can rupture the pressure vessel. Hence the use of pressure relief valves and vent valves are important. Safetygram-27 Cryogenic Liquid Containers

The expansion ratio of Liquification and cryogenic from the boiling point to ambient is:

• liquid nitrogen – 1 to 696
• liquid helium – 1 to 745
• argon – 1 to 842
• liquid hydrogen – 1 to 850
• liquid oxygen – 1 to 860
• neon – Neon has the highest expansion ratio with 1 to 1445.
  (2012). 9781461306733, Springer Science & Business Media. . ISBN 9781461306733

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See also

• Liquid-to-gas ratio
• Boiling liquid expanding vapor explosion
• Thermal expansion

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External links

• cryogenic-gas-hazards

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