Quicklime: Properties & Uses for Drying Gases

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SUMMARY

Quicklime, also known as calcium oxide, is primarily utilized for drying gases due to its basic properties. It effectively dries neutral gases but cannot be used for acidic gases such as sulfur dioxide and carbon dioxide, as these gases react with quicklime to form calcium sulfate and other byproducts. This reaction highlights the limitations of quicklime in gas drying applications.

PREREQUISITES
  • Understanding of chemical reactions involving acids and bases
  • Knowledge of gas drying processes
  • Familiarity with the properties of quicklime (calcium oxide)
  • Basic chemistry terminology related to gas interactions
NEXT STEPS
  • Research the chemical properties of quicklime and its applications in gas treatment
  • Explore alternative drying agents for acidic gases
  • Learn about the formation and uses of calcium sulfate in industrial processes
  • Investigate the environmental impact of using quicklime in gas drying
USEFUL FOR

Chemists, environmental engineers, and industrial professionals involved in gas treatment and drying processes will benefit from this discussion.

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Quicklime is used to dry gases.It is also basic in nature. It cannot be used to dry acidic gases such as sulphur dioxide and carbon dioxide.

Why is this so? Is it because alkali (quicklime) will react with the acidic gases to form salt and water?

Please help. Thanks. :smile:
 
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You have answered your own question. Sulfur dioxide and quicklime will react to make calcium sulfate, CO2 also reacts.
 
Thanks jim. :)
 

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