Dry Ice (CO2): Definition, Properties, and Uses

Context:  

Recently, at Gurugram restaurant, diners were mistakenly served ‘dry ice’ leading to severe health consequences.

What is Dry Ice?

dry ice

  • Definition: It is the solid form of carbon dioxide, commonly used as a cooling agent for food products like ice cream, frozen desserts etc.
  • Dry Ice Formula: CO2
  • Properties of Dry Ice:

    • Extreme Cold: It remains at extremely low temperatures, around -78.5 degrees Celsius (-109.3 degrees Fahrenheit). 
    • Sublimation: which enables it to transition straight from a solid to a gas without going through a liquid phase unlike regular ice.
    • It is frequently used for food items that are needed to be cold or frozen, without the use of mechanical cooling. 
  • Uses of Dry Ice: 

    • Food Industry: 
      • It’s employed for freezing at ultra-low temperatures, preserving food without water, and extending shelf life
      • Ex: in environments like aircraft lacking refrigeration systems, Popular in Restaurant & Bars.
    • Medical and Pharmaceutical Applications: It is crucial in transporting and storing biological samples and medicines
      • Ideal for preserving pharmaceuticals like vaccines, maintaining their potency. .
    • Transportation and Storage: Keep moisture-sensitive goods free from water during transportation and storage, as dry ice does not melt.
    • Special Effects in other Fields: 
      • In Entertainment Photography, film, and theater leverage dry ice for special effects, utilizing its sublimation for visual impact
      • Fog and smoke machines enhance ambiance at parties or create eerie atmospheres for events like Halloween.

Safety Concerns and Risks 

  • Respiratory Issues: The accumulation of carbon dioxide in poorly ventilated areas can lead to oxygen deficiency, and increasing the risk of asphyxiation.
  • Skin Hazards: The low temperature of dry ice may cause frostbite or cold burns if it comes into close contact with the skin.

Also Read: Global Initiative On Digital Health (GIDH)

News Source: DTE

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Comprehensive coverage with a concise format
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Quick Revise Now !
UDAAN PRELIMS WALLAH
Comprehensive coverage with a concise format
Integration of PYQ within the booklet
Designed as per recent trends of Prelims questions
हिंदी में भी उपलब्ध

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