John: Peter Jones here. I am not sure what size of desiccant canister you are looking for, but there is one I use to keep my camera dry from moisture on long caving trips. Works really well for me, as long as the desiccant is recharged and sealed in a ziplock plastic baggie with my camera when it is not in use. These are small rectangular aluminum canisters filled with a silica gel material that can be recharged by heating the whole unit to 300 degrees in an oven to dry it out. When it has soaked up a lot of moisture, it turns pink, when recharged it turns dark blue. To find it, go to http://www.coleparmer.com/Product/Reusable_desiccant_canister/EW-07193-91 for info. They offer other desiccant materials as well, but I am only familiar with this one and very pleased with it.
Hope that helps. Peter On Aug 24, 2012, at 7:48 PM, John Corcoran wrote: > Derek, > > Do you have suggestions for desiccant suppliers and water resistant > containers or plastic bags? > > Regards, > > John > > From: [email protected] [mailto:[email protected]] On Behalf Of > Bristol, Derek > Sent: Friday, August 24, 2012 4:12 PM > To: Gary Moss; Mark Minton; [email protected]; [email protected] > Subject: Re: [SWR] [Texascavers] Re: Cave articles in Spiegel (German weekly) > > Don’t forget the cave camp sleeping bag desiccant market. > > From: [email protected] [mailto:[email protected]] On Behalf Of Gary > Moss > Sent: Friday, August 24, 2012 1:55 PM > To: Mark Minton; [email protected]; [email protected] > Subject: Re: [SWR] [Texascavers] Re: Cave articles in Spiegel (German weekly) > > Hi Mark: > > I think Carbide is still used in the production of steel. Some friends of > mine once to a steel plant thinking they could get the empty 100 lb cans. > They just through the carbide in the mix can and all. It appears the steel > can did not hurt the steel :) > > Gary Moss > > > At 10:47 PM 8/23/2012, Mark Minton wrote: > > I agree. Calcium carbide is mainly used for production of acetylene > for welding where it is not available in tanks. In the West that is > increasingly rare. My guess is that carbide will soon cease to be available > at reasonable cost. (It is already hazardous cargo.) > > Mark > > At 10:07 PM 8/23/2012, DONALD G. DAVIS wrote: > > >Mark, > >You'd be the best to answer this, wasn't calcium carbide a byproduct of > something else, and used to produce commercial acetylene gas quantities? What > is the current practice to get the gas? > >john Lyles > > No, calcium carbide was never a byproduct. It was, from the late > 1800s, and still is, produced by reacting calcium carbonate and coke in > electric furnaces. Its major use is still for making acetylene, but where > petroleum and natural gas are plentiful, most acetylene today is derived > from those instead. The Wikipedia article "calcium carbide" explains it. > > --Donald > > Please reply to [email protected] > Permanent email address is [email protected] > > --------------------------------------------------------------------- > Visit our website: http://texascavers.com > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] > _______________________________________________ > SWR mailing list > [email protected] > http://lists.caver.net/cgi-bin/mailman/listinfo/swr > _______________________________________________ > This list is provided free as a courtesy of CAVERNET
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