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Abbo · 29th January 2008, 09:32

Quote: (Originally Posted by schnappi)

dont know whether this is enough, but here is some details on the reaction in the lime:
Soda lime - Wikipedia, the free encyclopedia

cheers
--bruno

Yes, but as described by Molecular Products Ltd, carbonic acid does not play a significant part in the reaction:
http://www.rebreatherworld.com/scrub...scrubbers.html
That said, as I commented at the end of the thread on 11 Jan, the equations are not balanced in Molecular Products' post.
I think he meant to write:
CO2 + NaOH => NaHCO3
NaHCO3 + Ca(OH)2 => CaCO3 + NaOH + H2O

For confirmation, if you look up carbonic acid
Carbonic acid - Wikipedia, the free encyclopedia
it reminds us that at 25 degrees C, carbonic acid does not form.

Take all this with a pinch of sodium chloride as I'm a physicist not a chemist.

29th January 2008, 09:32	#4 (permalink)
Abbo Nicholas Smith Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: Aug 2006 Location: Tokyo Posts: 449	Re: Sofnolime chemistry Quote: (Originally Posted by schnappi) dont know whether this is enough, but here is some details on the reaction in the lime: Soda lime - Wikipedia, the free encyclopedia cheers --bruno Yes, but as described by Molecular Products Ltd, carbonic acid does not play a significant part in the reaction: http://www.rebreatherworld.com/scrub...scrubbers.html That said, as I commented at the end of the thread on 11 Jan, the equations are not balanced in Molecular Products' post. I think he meant to write: CO2 + NaOH => NaHCO3 NaHCO3 + Ca(OH)2 => CaCO3 + NaOH + H2O For confirmation, if you look up carbonic acid Carbonic acid - Wikipedia, the free encyclopedia it reminds us that at 25 degrees C, carbonic acid does not form. Take all this with a pinch of sodium chloride as I'm a physicist not a chemist.
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