Triflic Acid
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Precipitation of TACN (tetraamine copper nitrate)
Made a solution of this explosive earlier today. I currently have it in solution, but am not sure how to get it out. I don't have much isopropanol
left, (and trying to conserve it) like the usual preps call for, but I have loads of ethanol-methanol fuel alcohol. Could I precipitate the TACN using
this fuel alcohol instead? I really don't want to use up my iPOH.
There wasn't a fire, we just had an uncontrolled rapid oxidation event at the power plant.
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XeonTheMGPony
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I boil it down, then gas with ammonia then salt out or evaporate the remaining water
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Triflic Acid
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Won't plain boiling destroy the ammonia ligands? And I really don't like the thought of evaporating something under a stream of ammonia.
[Edited on 10-6-2021 by Triflic Acid]
There wasn't a fire, we just had an uncontrolled rapid oxidation event at the power plant.
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MineMan
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It should reform when the ammonia is added.
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Triflic Acid
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Ok, so basically make copper nitrate solution, then boil down and last gas w/ ammonia?
There wasn't a fire, we just had an uncontrolled rapid oxidation event at the power plant.
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Triflic Acid
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Actually, I'd really prefer to be able to use alcohol to get it out of solution. At this point, given the lack of info about ethanol being used to
precipitate, I think I'm going to give up and use iPOH.
There wasn't a fire, we just had an uncontrolled rapid oxidation event at the power plant.
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Bedlasky
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[Cu(NH3)4]SO4 is often precipitated out using EtOH or MeOH. I think that this will work for nitrate also.
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Triflic Acid
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Ok, I'll test that on a small scale this afternoon. More results coming shortly.
There wasn't a fire, we just had an uncontrolled rapid oxidation event at the power plant.
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XeonTheMGPony
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Quote: Originally posted by Triflic Acid  | Ok, so basically make copper nitrate solution, then boil down and last gas w/ ammonia?[/rquote
That's the ticket! Make it a super concentrate and most will crash out, the rest gets salted out easily. |
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Laboratory of Liptakov
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Cool the aqueous solution to -10 ° C for 8 hours. If the concentration of NH4OH in the solution is about 20-25%, the yield is 95% or more. The next
operation is only the filtration of TACN crystals. Do not use paper. The solution dissolves everything organic. It's a Schweizer reagent. If the
concentration of NH4OH in the solution is low, for example 10%, bubble the cold solution with ammonia gas. The more concentrated NH4OH, (and the
colder) the higher the yield.
Development of primarily - secondary substances CHP (2015) Lithex (2022) Brightelite (2023) Nitrocelite (2024)
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Triflic Acid
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In the end, I found a really old bottle of iPOH, and just used that. So, no test of ethanol. Also, cooling to just 5C in an ice bath for 1 and a half
hours worked to give me a good amount.
There wasn't a fire, we just had an uncontrolled rapid oxidation event at the power plant.
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Laboratory of Liptakov
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I said that. No ethanol is needed. Another interesting fact is that TACN can be very easily converted to TACP. Simply mix dry 10g TACN + 10g NH4ClO4.
And add 60g NH4HO 25% aq.
Within an hour, at the lab. temperature, the TACN changes to TACP Directly before your eyes. Highly soluble NH4NO3 will in solution. Therefore TACP
requires recrystallization. 10g TACP + 30g NH4OH 15%. The ratios are not specified exactly, but it works reliably. It's a nice reaction to the look.
How dark TACN crystals change to light blue TACP. According to the different colors, it is easy to determine the correct ratio / time / temperature /
for complete conversion. Like with litmus paper. TACN crystals are in solution almost black, but TACP light blue. Is not necessary dissolving all
TACN. Reaction run in mode dark crystal to light crystalb directly.
Development of primarily - secondary substances CHP (2015) Lithex (2022) Brightelite (2023) Nitrocelite (2024)
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Nitrosio
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Attachment: TACN.pdf (1.5MB)
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Attachment: TACN4.pdf (10kB)
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