Very expensive gas

[Showdog75]

What is this welding gas used for ? http://http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=290443944258

[DamageInc537]

looks more like a bio-pharm type of gas, dunno about welding.

http://encyclopedia.airliquide.com/encyclopedia.asp?GasID=20

if i read the whole sheet on it, i would have seen that its a flammable gas, so most likely NOT a shielding gas

[pro70z28]

I think Scotty uses it when the wrap drive runs out of dylithium crystals.

[Showdog75]

You can gas weld with hydrogen and it seems similiar but super expensive. I didn't really think it was for welding just curious what folks would say it's for.

[enlpck]

It's used for a variety of things. It is an isotope of hydrogen with a single neutron. Most hydrogen (much more than 99%) has no neutron in the nucleus-- only a proton. Deuterium is chemically the same (in most processes) as normal hydrogen, but can be identified by the greater weight of the atom, usually using a mass spectrometer. It's used in chemical synthesis, in nuclear research (the neutron changes the nuclear cross section dramatically), and in a number of other places.

The place I have seen it was in making up tracers when I was working in the medical research lab. They would use deuterium in synthesizing a compound, and where the deuterium ended in a biological process that involved the compound, it told them about how the process worked. For example, if you replace a hydrogen at one end of a five-carbon linear hydrocarbon, like pentane, and the deuterium shows up in a bacterium growing exposed to it, you have evidence that the bacteria is taking hydrogens from the end of the molecule.

[kcstott]

It's for welding unobtainium!!!!

[pro70z28]

Sounds like something that would require permits or license to handle or some sort of paper trail.

[SundownIII]

pro,

No, that's methane that normally requires a "paper trail".

[MR.57]

Hmm...interesting!

https://www.fbo.gov/index?s=opportunity&mode=form&tab=core&id=7539ea25f7d417549940a0c99e50566b&_cview=0

[Railmen]

pro,

No, that's methane that normally requires a "paper trail".

Oh Man now that's FUNNY................

[pro70z28]

pro,

No, that's methane that normally requires a "paper trail".

I was thinkin' more like a "documentation" paper trail......

[fjk]

It's also good for making those Really ReallyReallyBIG EARTHSHATTERING KABOOMS!