dry ice

     

Dry ice is soli carbon dioxide. It is commonly used as a versatile cooling agent. Dry ice sublimates, changing directly to a gas at atmospheric pressure. Its sublimation and deposition point is -78.5 °C (-109.3 °F). Its enthalpy of sublimation (ΔHsub) at -78.5 °C (-109.3 °F) is 571 kJ/kg (245.5 BTU/lb). The low temperature and direct sublimation to a gas makes dry ice a very effective coolant, since it is colder than ice and leaves no moisture as it changes state. (Although it can carbonate food that is near).

Trivia about dry ice

  • Solid water is ice; solid carbon dioxide has this 2-word name
  • It's the more common name for frozen carbon dioxide
  • It's the more common name for solid CO2
  • 2-word name for solid carbon dioxide, useful for shipping perishables like fish

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