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----- 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 > > > > ************************************************************************ ************************************************************************ ************************************************************************ The personal submersibles mailing list complies with the US Federal CAN-SPAM Act of 2003. Your email address appears in our database because either you, or someone you know, requested you receive messages from our organization. If you want to be removed from this mailing list simply click on the link below or send a blank email message to: removeme-personal_submersibles@psubs.org Removal of your email address from this mailing list occurs by an automated process and should be complete within five minutes of our server receiving your request. PSUBS.ORG PO Box 53 Weare, NH 03281 603-529-1100 ************************************************************************ ************************************************************************ ************************************************************************ |