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Name: Wlater
Status: student
Grade: 4-5
Location: NJ
Country: N/A
Date: May 2006

Question:
How does a carbon dioxide filter work? (like the one on Apollo 13)



Replies:
The chemical reaction is:

CO2 + 2LiOH --> LiCO3 + H2O

Thus, the carbon dioxide is passed through filters that contain lithium hydroxide. The reaction than converts the carbon dioxide to lithium carbonate and water.

Greg (Roberto Gregorius)



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