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Experiments with liqid nitrogen dioxide
Iam planning on making some liqid nitrogen dioxide, and i want to ask, what can i do with it? I know that it can be used as oxidizer, but i dont know
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Sulaiman
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From the Wikipedia nitrogen dioxide page;
As suggested by the weakness of the N–O bond, NO2 is a good oxidizer.
Consequently, it will combust, sometimes explosively, with many compounds, such as hydrocarbons.
Take care ....
CAUTION : Hobby Chemist, not Professional or even Amateur
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Tsjerk
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Seal it in a strong glass tube. NO2 is red, but at lower temperatures it forms N2O4 which is blue, and visa versa.
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Metacelsus
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The blue comes from N2O3; pure N2O4 is colorless.
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unionised
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When wiki has a whole page devoted to the toxicity of a material
https://en.wikipedia.org/wiki/Nitrogen_dioxide_poisoning
you need a really good reason to make it.
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BromicAcid
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First time I ever tried to make nitric acid ended up collecting nitrogen dioxide instead. Thought it was red fuming acid even though I couldn't see
though it. Would add it to water and it would spin around on the surface in droplets and little tendrils would spin out around it. Very interesting
to watch. Didn't take long to figure out I didn't make nitric acid.
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DraconicAcid
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NO2 can't be liquified- it dimerizes first.
Please remember: "Filtrate" is not a verb.
Write up your lab reports the way your instructor wants them, not the way your ex-instructor wants them.
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BromicAcid
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Sure, it's an equilibrium reaction between the dimer and the monomer - but there is certainly monomer present. Classic P-Chem experiment was to track
the equilibrium from dry ice temps up to room temp based on color.
[Edited on 8/24/2019 by BromicAcid]
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DraconicAcid
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Quote: Originally posted by BromicAcid  | Sure, it's an equilibrium reaction between the dimer and the monomer - but there is certainly monomer present. Classic P-Chem experiment was to track
the equilibrium from dry ice temps up to room temp based on color.
[Edited on 8/24/2019 by BromicAcid] |
We do the same eq'm at temp from 0 C to 60 C, and the colour practically vanishes before it liquifies. Perhaps your experiment was at a higher
overall pressure.
Please remember: "Filtrate" is not a verb.
Write up your lab reports the way your instructor wants them, not the way your ex-instructor wants them.
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hissingnoise
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| Quote: Originally posted by its me! | | Iam planning on making some liqid nitrogen dioxide, and i want to ask, what can i do with it? I know that it can be used as oxidizer, but i dont know
much more... |
What method will you use to produce NO2, if you don't mind me asking?
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its me!
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| Quote: Originally posted by hissingnoise | | Quote: Originally posted by its me! | | Iam planning on making some liqid nitrogen dioxide, and i want to ask, what can i do with it? I know that it can be used as oxidizer, but i dont know
much more... |
What method will you use to produce NO2, if you don't mind me asking?
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By reaction of copper and nitric acid
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hissingnoise
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How do propose liquefying the vapour ─ it boils at ~20°C?
And you're going to need a shitload of copper and NA...
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its me!
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iam planning to liqify it using ice(passing the gas throu ice cooled tube to ice cooled test tube), i have lots of useless copper wires, so copper is
not a problem, and i wont be makink too much of it anyway... Do you have betther method ?
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icelake
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Take a look at this and be careful.
https://archive.org/download/ChemPlayer/Preparation%20of%20l...
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hissingnoise
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Check this out ─ it's long been the preferred method.
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hissingnoise
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The lead nitrate, NO2 prep. seems the simplest ─ less glassware...?
But excluding moisture is always a problem!
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Sulaiman
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I happened to watch this video earlier today, quite relevant
https://www.youtube.com/watch?v=HESOat2iPzU
CAUTION : Hobby Chemist, not Professional or even Amateur
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