Booze
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White Fuming Nitric Acid
Hello. I got interested in WFNA, as it has very little info on wikipedia. My current guess on its prep is a nitric acid synthesis without water, and
maybe bubbled with air afterward? Or added a little bit of urea? Can someone clarify a little bit? Thanks
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j_sum1
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There are YT vids on the synthesis. Not dissimilar from making azeotropic NA. Simply distil from sulfuric acid and a dry nitrate.
Red fuming nitric acid occurs is you get any evolution of nitrogen oxides. Then you need to redistil.
But really, why? 68% is suitable for nearly everything. And WFNA is painful to store.
Make in small volumes as you need it.
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Booze
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Quote: Originally posted by j_sum1  | There are YT vids on the synthesis. Not dissimilar from making azeotropic NA. Simply distil from sulfuric acid and a dry nitrate.
Red fuming nitric acid occurs is you get any evolution of nitrogen oxides. Then you need to redistil.
But really, why? 68% is suitable for nearly everything. And WFNA is painful to store.
Make in small volumes as you need it. |
I wasn't going to make much, or keep it for very long.
Possible RDX synth.
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Melgar
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Before I could get 68% nitric acid OTC, my nitric acid was always WFNA, because I had to make it myself. It's actually not that bad, in my opinion.
I just stored it in a dark brown polyethylene bottle and never had a problem. Basically, if you vacuum-distill sulfuric acid and 68% nitric acid, or
sulfuric acid and a nitrate salt, you get WFNA. If you distill it without a vacuum, it's less white and more red. Of course, the vapors will destroy
just about anything that you'd use to pull a vacuum except an aspirator, so keep that in mind.
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Praxichys
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I usually distilled KNO3 and H2SO4 without a vacuum to get RFNA and then used a fishtank air pump to blow dry air through it to kick out the
NOx until water clear.
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Booze
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| Quote: Originally posted by Praxichys | | I usually distilled KNO3 and H2SO4 without a vacuum to get RFNA and then used a fishtank air pump to blow dry air through it to kick out the
NOx until water clear. |
I have a pump, but really don't want to risk destroying it. I will do that.
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ave369
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I've made WFNA successfully using battery acid boiled down to 90%, fertilizer grade potassium nitrate and a retort. Density measurements showed the
concentration to be 95%. The trick is not to overheat the distilling flask, or you'll get RFNA instead.
Smells like ammonia....
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CuReUS
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While we are on the topic of W/RFNA,could someone answer these questions please -http://www.sciencemadness.org/talk/viewthread.php?tid=71219#...
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akmetal
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| Quote: Originally posted by Booze | | Quote: Originally posted by j_sum1 | There are YT vids on the synthesis. Not dissimilar from making azeotropic NA. Simply distil from sulfuric acid and a dry nitrate.
Red fuming nitric acid occurs is you get any evolution of nitrogen oxides. Then you need to redistil.
But really, why? 68% is suitable for nearly everything. And WFNA is painful to store.
Make in small volumes as you need it. |
I wasn't going to make much, or keep it for very long.
Possible RDX synth. |
Very easy to just get an ATF permit, and if you use it the same day you dont have to have a magazine, even if you have to build a magazine its not
that big of a deal unless you live in a highly urban area.
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thermochromic
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| Quote: Originally posted by akmetal | | Quote: Originally posted by Booze | | Quote: Originally posted by j_sum1 | There are YT vids on the synthesis. Not dissimilar from making azeotropic NA. Simply distil from sulfuric acid and a dry nitrate.
Red fuming nitric acid occurs is you get any evolution of nitrogen oxides. Then you need to redistil.
But really, why? 68% is suitable for nearly everything. And WFNA is painful to store.
Make in small volumes as you need it. |
I wasn't going to make much, or keep it for very long.
Possible RDX synth. |
Very easy to just get an ATF permit, and if you use it the same day you dont have to have a magazine, even if you have to build a magazine its not
that big of a deal unless you live in a highly urban area. |
Someone can correct me if I am wrong but I am pretty sure you do not need any permit from the AFT to simply synth rdx or other energetic (minus a few
outlawed by name like TATP). Permitting is required for transportation, storage, or if you are making a destructive device. Is far is the “ if you
use it on the same day” statement, I think you are thinking of ffl 07/SOT requirements for serializing and logging destructive devices. Perhaps
there is a similar requirement for record keeping of explosives but like I said, if you are making some, not transporting, and using experimentally
the same day on your own property, no licensing is needed, federally at least
[Edited on 24-12-2023 by thermochromic]
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Rainwater
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In the US, federal level, your correct.
But every state has different restrictions, and every county, more restrictions.
There is not a one size fits all answer here.
Best to ask your local authorities.
Most will be understanding, some will think your a nut job.
Mine wanted to see me workspace and lab logs.
Since moving into a more populated area, i was granted permission for quantities less than 0.1g.
and local noise/firework restrictions apply.
[Edited on 24-12-2023 by Rainwater]
"You can't do that" - challenge accepted
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