[TheForge] Argon-CO2 mix question

[Paul]

Yeah,
One of the properties of the internet is, if you want to know something, 
and no one is responding, all you need to do is post something that's 
technical and incorrect.

That usually gets a lot of discussion going :-)

And I'm sure someone will correct me on this too :-) :-)

**Paul

Toni Janz wrote:
> 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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