Re: [PSUBS-MAILIST] ExtendAir scrubber cartridge

[Jon Wallace <jonw@psubs.org>]

Jay,

You sure you have that correct?  One of the by-products of the CO2 
absorption is water.  What are the conditions that cause it to be 
flammable/explosive?  We know it was used in Apollo and also in existing 
submarines so those conditions can't be very conducive to this extreme 
behavior.

Here's some wiki info.
http://en.wikipedia.org/wiki/Lithium_hydroxide

Jon


Jay K. Jeffries wrote:
> The lithium hydroxide cartridges are of a larger diameter as compared 
> to the much more common Extend-air slaked calcium hydroxide units.  
> The LiOH cartridges are MUCH more expensive with a proportionally 
> extended duration time.  As a by-product, they produce a lot of heat.  
> In addition to the downside of the cost, exposure to water makes them 
> flammable/explosive.  The other cartridges can be acquired through 
> many SCUBA shops.
>
> R/Jay
>
> / /
>
> *From:* owner-personal_submersibles@psubs.org 
> [mailto:owner-personal_submersibles@psubs.org] *On Behalf Of *David 
> Bartsch
> *Sent:* Tuesday, November 24, 2009 4:06 PM
> *To:* personal_submersibles@psubs.org
> *Subject:* RE: [PSUBS-MAILIST] ExtendAir scrubber cartridge
>
>  
>
>   Just a note...Lithium Hydroxide canisters were aboard my submarine 
> in case of emergencies. I would assume that the navy did extensive 
> research and found these to be the best purchase for the limited space 
> available.
>  
>   My .02 cents
>  
>                                                                                 
> David Bartsch
>  
>             
>  




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