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Nitrogen VS Argon

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Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: December/01/2011 at 11:26
cervelo View Drop Down
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I have noticed that some of the lower priced brands / models have argon gas and the higher end ones have nitrogen--- is one suposodly better than the other and why?? Any one know??
 
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Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: December/01/2011 at 11:48
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 Both are inert gases. Either will work fine as long as the seals hold the gas where it is supposed to be......... inside the binocular.
 Argon is much heavier than nitrogen. Don't think with the small amounts used that it would make much of a difference on weight of binocular.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: December/01/2011 at 12:24
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In theory, as pointed out above, Argon is heavier than Nitrogen.  It is also heavier than Oxygen.  Theory being that in case of seal failure the Argon will be less prone to diffuse through the faulty seal into the atmosphere than Nitrogen would be.  In practice, I doubt there is enough difference to tell about.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: December/01/2011 at 12:40
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Originally posted by cervelo cervelo wrote:

I have noticed that some of the lower priced brands / models have argon gas and the higher end ones have nitrogen..
 
MINOX uses Argon gas and they are not all in the "lower priced brands", far from it.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: December/01/2011 at 12:46
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Originally posted by Klamath Klamath wrote:

In theory, as pointed out above, Argon is heavier than Nitrogen.  It is also heavier than Oxygen.  Theory being that in case of seal failure the Argon will be less prone to diffuse through the faulty seal into the atmosphere than Nitrogen would be.  In practice, I doubt there is enough difference to tell about.
 We use argon as a shielding gas for TIG welding. We also use it as a "purge" on the inside of stainless pipe when an x-ray quality weld is called for. That said, if you leave a hole in the pipe covers and don't keep applying more gas, it will eventually all "leak" out. (Sooner or later atmosphere will displace most of it) So, while nitrogen would leak out at a faster rate than argon, both will eventually leak out in the event of a seal rupture. So the point is kinda moot.
 Not sure on cost these days, but at one time argon was higher than nitrogen. But then again, with the very small amounts used in a binocular, the gas price probably does not come into play. 
 Jmtcw
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: December/01/2011 at 14:20
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