Inert Cryogenic Liquids Fact Sheet

Types of Inert Cryogenic Liquids include liquid nitrogen, liquid helium and liquid argon.

Hazards

  • Asphyxiation: Risk when cryogenic liquids are stored or used in poorly ventilated areas, as they displace oxygen in the air.
  • Cryogenic Burns: Risk when skin contacts liquid nitrogen or surfaces that are/have been in contact with liquid nitrogen. The risk is greater for eyes and other delicate tissue.
  • Frostbite: Risk where there is a continued exposure of unprotected skin to cold atmospheres.
  • Hypothermia: Risk from low temperatures arising from the proximity of liquefied gases.
  • Explosion Hazard: Risk from pressure buildup (due to the large expansion ratio of cryogenic liquids) in containers where ventilation is blocke