[TheForge] Argon-CO2 mix question

[Toni Janz]

Sorry, the wording in my reply is misleading. I did not mean to imply that it 
was one of the Ideal Gas Laws. I was hoping to communicate the fact that this 
tendency to mix without agitation is a characteristic of gasses.

There is a wealth of understanding on this list so I'm sure you will get a
more thorough explanation shortly. 

Toni

* Toni Janz (egg at only-an-egg.org) wrote:
> 
> Its one of the gas laws, when two gasses mix they both expand to fill the container
> as such the CO2 and Argon have both mixed throughout the container.
> 
> Any gas or mixture of gasses will expand to fill its respective container.
> 
> Toni
> 
> 
> 
> * craig.schaefer at verizon.net (craig.schaefer at verizon.net) wrote:
> > Why do you say 'impossible'?   They are not bonded chemically, and since the two gasses have different weights, couldn't they sort themselves out?  On the other hand, I would think that just opening the valve to release the gas would mix up the insides pretty well.
> > 
> > CraigS
> > 
> > 
> > 
> > >From: Bruce Freeman <freemab222 at yahoo.com>
> > >Date: 2007/06/04 Mon PM 08:59:17 CDT
> > >To: Craig Schaefer <craig.schaefer at verizon.net>, 
> > 	Sponsored by ABANA <theforge at mailman.qth.net>
> > >Subject: Re: [TheForge] Argon-CO2 mix question
> > 
> > >If the argon and CO2 exist as gases in the cylinder,
> > >then separation is impossible.
> > >
> > >However, CO2 may exist at that temperature and
> > >pressure as a liquid, in which case separation is
> > >possible.
> > >
> > >I would guess that in formulating the Argon-CO2
> > >mixture, this possibility was accounted for, and
> > >somehow rendered irrelevant.  
> > >
> > >However, to be sure, you'd have to talk to a technical
> > >man at the gas supplier.  I don't mean the local
> > >welding supply store, but someone back at the
> > >headquarters of the company - like AirGas, MG, etc. -
> > >that does the gas blending.
> > >
> > >Bruce
> > >NJ
> > >--- Craig Schaefer <craig.schaefer at verizon.net> wrote:
> > >
> > >> I just read on another forum that someone suggested
> > >> that over time, argon 
> > >> and CO2 might tend to stratify (separate) in the
> > >> cylinder.  Has anyone ever 
> > >> heard of this?   This is news to me, but I could
> > >> have had my head in the 
> > >> ground over the past 30 years or so.....
> > >> 
> > >> CraigS
> > >> Gresham, OR 
> > >> 
> > >> 
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