[TheForge] Argon-CO2 mix question

[craig.schaefer at verizon.net]

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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