Nitrogen in tyres interesting points

It is all to do with the molecular size and permeability through a membrane.

However for normal use in car tyres it is a total waste of money.
 
If one wishes to be perdantic even Argon - a noble gas is not inert

It is well known in ICP_MS that argon forms an interfering complex which interferes with the measured mass of certain metals

Nitrogen is used in the collision cell off some mass spectrometers because it is inert and will not react with the compounds that enter the cell

If you are into chemistry then you will know

When something is classed as inert and when it is not
Just because a compound has a lower molecular weight it is not necessarily a smaller molecule

Etc, etc
 
blueranger said:
To quote the infamous wiki "reaction with hydrogen (H2) using a metal catalyst under high temperatures and pressures:


Before the development of the Haber process, ammonia had been difficult to produce on an industrial scale"

Inert, I don't think so. Low on the reactivity scale...yes bit of a difference I'd say.
Click to expand...
'Relatively inert' is the phrase we're struggling towards.
 
Blackal said:
That’s because he pretends he knows, then googles it - and then has to muddle his words to make it look like he was saying that all the time..................
Click to expand...

Just had to dig out my old chemistry text books that have been in the cupboard since about 1976 :)
 
stolzy said:
More inert than halogens, less than noble gasses. :-)



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At STP, very inert relative to most other gases :) hence the reason it exists as an elemental gas in the atmosphere.

I can see agreement converging.
 
Engineer said:
At STP, very inert relative to most other gases :) hence the reason it exists as an elemental gas in the atmosphere.

I can see agreement converging.
Click to expand...
This puzzles me. So how does oxygen exist in the air? Based on your comments, not in an elemental state - because unlike nitrogen, we know it is highly reactive?

Genuine question. Chemistry ain't my thing. But your comments started me thinking...



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Slipperyeel said:
This puzzles me. So how does oxygen exist in the air? Based on your comments, not in an elemental state - because unlike nitrogen, we know it is highly reactive?

Genuine question. Chemistry ain't my thing. But your comments started me thinking...



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Click to expand...

Most of the oxygen is produced as a by product of transpiration by plant life, it gets used up by you breathing and iron rusting etc(oxidation). Evolution has kept life , up until now at a nice balance of production/comsumption of O2 at 20.8% of the atmosphere. chopping down lots of trees and burning lots of stuff is not helping the balance. Enjoy it whilst you can.
 
CPJS said:
Most of the oxygen is produced as a by product of transpiration by plant life, it gets used up by you breathing and iron rusting etc(oxidation). Evolution has kept life , up until now at a nice balance of production/comsumption of O2 at 20.8% of the atmosphere. chopping down lots of trees and burning lots of stuff is not helping the balance. Enjoy it whilst you can.
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Thanks. But that I get...

What I don't get is the comment saying nitrogen exists in its elemental form in air.

My question then, perhaps put differently, is before the oxygen has reacted with something, what form is it in, if not its elemental form? Presumably, before it has been used by us to breathe or it has rusted something, it's floating around in its elemental state also?

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