DubaiAmateurRocketry
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Making copper perchlorate ? Is this method valid ?
So..
Since im guessing copper perchlorate would give a very beautiful Green flame. and Being a strong oxidizer in its anhydrous form, i really want to make
it !!!
I have Lithium and Ammonium perchlorate. I am guessing if LP work, it should be this.
2 LiClO4 + Cu(NO3)2 = 2LiNO3 + Cu(ClO4)2
and if AP work, it shall be
2NH4ClO4 + Cu(NO3)2 = 2NH4NO3 + Cu(ClO4)2
Does those work ? Is it worth trying ?
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bfesser
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Thread Moved
5-8-2013 at 10:05 |
Metacelsus
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What would drive the reactions? Also, mixing ammonia and copper salts with oxidizing anions might be a bad idea, as it could lead to formation of
sensitive tetraamine copper salts.
http://www.sciencemadness.org/talk/viewthread.php?tid=16220
Copper perchlorate is usually the hexahydrate. Dehydrating it to anhydrous might be impossible, going off of copper nitrate as an example.
If you really want the perchlorate, you could try reacting perchloric acid (be careful!) with copper oxide/hydroxide/basic carbonate.
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DubaiAmateurRocketry
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Quote: Originally posted by Cheddite Cheese  | What would drive the reactions? Also, mixing ammonia and copper salts with oxidizing anions might be a bad idea, as it could lead to formation of
sensitive tetraamine copper salts.
http://www.sciencemadness.org/talk/viewthread.php?tid=16220
Copper perchlorate is usually the hexahydrate. Dehydrating it to anhydrous might be impossible, going off of copper nitrate as an example.
If you really want the perchlorate, you could try reacting perchloric acid (be careful!) with copper oxide/hydroxide/basic carbonate.
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Oh thanks, well, I found on the net that AP can react with CuN2O6 with this reaction.
2 NH4ClO4(aq) + Cu(NO3)2(aq) = 2 NH4NO3(aq) + Cu(ClO4)2(s)
So, im guessing i shall give it a shot ? I have several KG of those stuff, so yeah, any one else can give me little suggestion before I do this ?
Thanks.
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Metacelsus
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From the CRC handbook (86th edition):
Cu(ClO4)2 solubility @30 C: 59.3% by mass
Cu(ClO4)2 solubility @0 C: 54.3% by mass
NH4ClO4 solubility @100 C: 46.6% by mass
NH4ClO4 solubility @30 C: 21.7% by mass
NH4ClO4 solubility @0 C: 10.8% by mass
Copper perchlorate is more soluble than ammonium perchlorate (its solubility is only listed at 0 C and 30 C, but I assume this is true over all
temperatures). Ammonium nitrate is also more soluble than copper nitrate at all temperatures listed. Therefore, I believe that your reaction will not
work as stated. (The same goes for lithium perchlorate.) However, if it does work, it would be very interesting. Could you give me a link to where you
found it?
If you really want to use a displacement reaction, you could try something like lead or silver perchlorate with copper chloride. Lead and silver
chlorides are insoluble and will precipitate (again from the CRC handbook).
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Dany
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Hello, DubaiAmateurRocketry
Cheddite cheese is wright when saying that metathesis rection will work. silver halide are insoluble in aqueous solution and will precipitate.
i suggest to try to synthesis the copper perchlorate from cupric(II) oxide (CuO) with perchloric acid. theoretically you should obtain water and
cupric perchorate following the equation :
2HClO4+ CuO= Cu(ClO4)2+H2O
i didn't try it, but it seem feasible.
Dany.
[Edited on 8-8-2013 by Dany]
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DubaiAmateurRocketry
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Thx for replying, I tried the experiment.
Not sure what happened though, i added non-stoichiometrically, but i did add more Ammonium perchlorate because i should, and then, i mixed two
solutions, and nothing happened, but the blue copper nitrate color faded into a lighter blue.
not sure if thats an reaction or not, i started boiling the water until theres a very bit left, i was afraid i shouldnt heat too much since the salt
can decompose.
and now just waiting to see what happens.
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Fantasma4500
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anyhow the tetraamminecopperperchlorate just burns alike a fuse powder, or well KClO4 / Sugar
http://www.youtube.com/watch?v=Rds_KhCR19Q
this might be useful, but you might be sure to pay attention to handling this, and long time storage wouldnt be preferably, but this might be the way
to get enough energy to make this burn without the water killing the whole energy output
as the video shows its possible to detonate with a hammer, so plausibly closing it in might act like well flashpowder would
perhaps it could be added to a neutral flame like pure potassium flame?
it does seemingly burn with a very bright and beatiful blue CuCl2 flame
if you would want anhydrous Cu(ClO4)2 then you might want to use anhydrous HClO4
but as demonstrated and discussed earlier this more or less detonates (?) on contact with just paper so you might want to be careful and it would
limit it to very small amounts
if anything suitable it would be ceramics
i dont recommend it
acid that blows up, where the acid doesnt go off, thats just most chemists nightmare
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bfesser
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Thread Moved
8-8-2013 at 07:45 |
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