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Registered Member #1497
Joined: Thu May 22 2008, 05:24AM
Location: Toronto, Ontario, Canada
Posts: 801
Just to put it in perspective, NaK pretty much *explodes* with any moisture or free protons.... Even though ammonia doesn't have a free proton, it was never stated as anhydrous or a solution in a different solvent....
We can probably help you better if you describe the process that you are trying to do, there may be alternatives that don't require a liquid metal.
Registered Member #49
Joined: Thu Feb 09 2006, 04:05AM
Location: Bigass Pile of Penguins
Posts: 362
I certainly don't require a metal, but my density requirement makes a liquid metal an obvious choice. I have a gas nozzle in the bottom of a vessel which needs to be isolated from the contents of the vessel while still being able to deliver gas. Whatever I choose, its gotta sink to the bottom of the vessel and not dissolve or react with the contents.
Also my first post says the ammonia would be aqueous, so I've already discounted NaK
Sorry for being coy, you know how it is when you're not working alone. ::sigh::
Registered Member #193
Joined: Fri Feb 17 2006, 07:04AM
Location: sheffield
Posts: 1022
I seem to have been overdosing on the stupid pills. I thought that you needed a liquid metal for conduction of electricity or heat.
If all you need is something dull and dense then you could try the "fomblin" range of oils or the "Fluorinert" oils. The problem with these is that you might want to sit down and take a deep breath before looking at the prices.
Registered Member #2027
Joined: Mon Mar 16 2009, 07:34AM
Location: Texas
Posts: 5
Try a perchlorinated parrafin. Fluorinated ones work too, but they're hidiously expensive, and much harder to synthesize yourself. If you, like everyone and their brother these days, are operating a chlorate cell, Get some PVC and put one of these around your anode.
_______
| |
| ====(hose)
| |
| ------(wire)
| | |
| | |
| | |
: A :
: N :
: O : <= Fiberglass cloth, terra cotta, pvc with holes angled outward down, etc.
: D : (Could be solid, but conductivity is better with something porous)
: E :
Lead the chlorine through a water bubbler to get rid of the salt and a CaCl2 dryer for the water, then bubble into a beaker of mineral oil under strong sunlight (or a high power UV lamp if you have such a thing.)
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mercury substitute?
