How long does it take for Sn to convert to sodium nitrate when damp?

[1234dave]

Does anyone know?

Thanks
Pretty instant I guess. Fuuuuuuuuuck.

 

[Joannf]

Does anyone know?

Thanks
Pretty instant I guess. Fuuuuuuuuuck.

I searched the web for ten minutes but could find NO evidence that the nitrite REACTS with water, it is water soluble.
Another source says water will split it into nitrous acid and oxygen... the acid should again crystallize into the salt, that is nitrite, when it dries.
It seems that sodium nitrate tends to change into nitrite under certain circumstances, not vice versa.
This makes sense as the nitrite is NaNO2, while the nttrate is NaNO3 and has a volatile oxygen atom too many...
Can you point me to the source of the information saying that nitrite reacts into nitrate when humid ?

 

[1234dave]

Nitrate converts to nitrite in humid conditions, so I thought it'll be the same the other way. Mines been slightly damp for a day. So I thought it's changed to nitrate?
It's slightly wet to touch, not much
Does anyone else know?
Please help
I've got about 17 g of the stuff, decanted it from the main bag before it was confiscated but the bottle I used had some slight water inside it.
I'm going to go with it anyway I think

 

[Joannf]

Nitrate converts to nitrite in humid conditions, so I thought it'll be the same the other way. Mines been slightly damp for a day. So I thought it's changed to nitrate?
It's slightly wet to touch, not much
Does anyone else know?
Please help
I've got about 17 g of the stuff, decanted it from the main bag before it was confiscated but the bottle I used had some slight water inside it.

I think there's a simple way to test - 15 grams of nitrate in an ample lunch won't kill you ;)
On the other hand I think if you just let it dry you will be okay.
Why would anyone confiscate a food preservation chemical, are they all nuts now ?
Has it been declared an islamophobic substance already ?
This stuff seems to be storable forever, it's a conservant...

https://www.sigmaaldrich.com/content/dam/sigma-aldrich/docs/Sigma-Aldrich/Product_Information_Sheet/s2252pis.pdf

 

[jake3d]

Nitrate converts to nitrite in humid conditions, so I thought it'll be the same the other way. Mines been slightly damp for a day. So I thought it's changed to nitrate?
It's slightly wet to touch, not much
Does anyone else know?
Please help
I've got about 17 g of the stuff, decanted it from the main bag before it was confiscated but the bottle I used had some slight water inside it.
I'm going to go with it anyway I think

If your bottle has been sealed and not left exposed to air there is a good chance it is still usable for your purposes.

 

[Joannf]

If your bottle has been sealed and not left exposed to air there is a good chance it is still usable for your purposes.

Jake, can you tell me where you heard that NaNo2 goes zero when it attracts water ?
There doesn't seem to be a logical reason why it should.
Sources say that it shouldn't be used as a solution (dissolved in water), because instability in that aggregate state. So, dry it before use.
It's in sausage, actually even in fresh ones because it turns the stuff red (!) - sausages would look brown-grey without it...
It's in all the preserved meat stuffs you buy except cut fresh meat, and in almost ALL sausage, even fresh, because red.
And there's lots of water in the stuff, too. Doesn't seem to matter.
It sounds like H2SO4 in car batteries. the water dries off, you refill with water (not acid), because the crystals are still there and will dilute again...
They don't even say "store under low humidity and at a cool place."
Nothing at all.
If you have a source, please point me to it, TY - have to clear this up ;)

 

[jake3d]

I was talking about leaving it exposed to air, not water.

 

[Joannf]

I was talking about leaving it exposed to air, not water.

Hmm. That's bad and would lead me to assume that it has to be stored and is being sent, in a vacuum.

 

[jake3d]

A sealed/tightly shut container will be fine. It's if you leave it exposed to air for a long time that it slowly oxidizes to nitrate.

 

[Joannf]

A sealed/tightly shut container will be fine. It's if you leave it exposed to air for a long time that it slowly oxidizes to nitrate.

Aha... I can imagine that. Water would likely not speed that process up, so dave 1234 will be okay ;)