Hi Ed! Argon is a better blanketing gas due to density but Nitrogen is much
lower in cost and works adequately enough that it is favored by industry.
Bev's stuff covered the toxic and reactive issues associated with CO2.

Dave Hillman
Rockwell Collins
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On Thu, Aug 24, 2017 at 2:18 PM, Ed Popielarski <[log in to unmask]>
wrote:

> Hi all,
>
> I didn't find a good answer for why N2 was chosen as an inert gas for
> soldering purposes. Why not CO2 or Argon?
>
> Regards,
>
> Ed Popielarski
> Engineering Manager
>
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