Jon,
Pardon me, I meant to say minor amounts of oil/grease. Years ago had to work with many of the various scrubber materials when developing parts for the US Navy's EX-19 rebreather with a 12-hour duration.
R/Jay
-----Original Message-----
From:
owner-personal_submersibles@psubs.org [
mailto:owner-personal_submersibles@psubs.org] On Behalf Of Jon Wallace
Sent: Tuesday, November 24, 2009 5:07 PM
To:
personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] ExtendAir scrubber cartridge
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.
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
>
> / /
>
> Bartsch
> *Sent:* Tuesday, November 24, 2009 4:06 PM
> *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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