Why does NASA use LiOH instead of NaOH to take out the Co2 in the air?

ritamsh

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Posts: 21

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11 years ago

Why does NASA use LiOH instead of NaOH to take out the Co2 in the air?

Even though NaOH is much cheaper and readily available. . .
If you can prove it mathematically, that would be wonderful Slight Smile

Thanks guys!

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rivale

wrote...

11 years ago

Here's what I think..both are considered strong bases but if you want to take something into space you may want to take something that is lighter and at the same time you can take more. 1 mole LiOH is about 24g/mol while 1 mole NaOH is 40g/mol...with the same mass of NaOH, you can trap more CO2 using LiOH.

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