NEMO-Chemistry
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Acetylacetonates?
I am really interested in making some slightly unusual Cobalt salts. One that has popped up is Cobalt Acetylacetonate. I didnt find much that makes
this very easy, so far i am thinking of this route...
2 CoCO3 + 6 Hacac + H2O2 → 2 Co(acac)3 + 4 H2O + 2 CO2
So the first question is, seeing as i am in the UK, 12% hydrogen peroxide is about as high as I can get. Will this be strong enough for the oxidation?
For the Acetylacetonate i am looking at....
NaOEt + EtO2CCH3 + CH3C(O)CH3 → NaCH3C(O)CHC(O)CH3 +
2 EtOH
NaCH3C(O)CHC(O)CH3 + HCl → CH3C(O)CH2C(O)CH3 + NaCl
Or is there a better route?
Also i would love to have a go at doing a Nickel one!
[Edited on 8-12-2017 by NEMO-Chemistry]
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Rhodanide
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Quote: Originally posted by NEMO-Chemistry  | I am really interested in making some slightly unusual Cobalt salts. One that has popped up is Cobalt Acetylacetonate. I didnt find much that makes
this very easy, so far i am thinking of this route...
2 CoCO3 + 6 Hacac + H2O2 → 2 Co(acac)3 + 4 H2O + 2 CO2
So the first question is, seeing as i am in the UK, 12% hydrogen peroxide is about as high as I can get. Will this be strong enough for the oxidation?
For the Acetylacetonate i am looking at....
NaOEt + EtO2CCH3 + CH3C(O)CH3 → NaCH3C(O)CHC(O)CH3 +
2 EtOH
NaCH3C(O)CHC(O)CH3 + HCl → CH3C(O)CH2C(O)CH3 + NaCl
Or is there a better route?
Also i would love to have a go at doing a Nickel one!
[Edited on 8-12-2017 by NEMO-Chemistry] |
I love the look of Acetylacetonates, I've just never made any. Random Experiments International has a good video on Fe(acac)3.
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NEMO-Chemistry
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great i will take a look. have a look at Cobalt Acetylacetonate
http://onyxmet.com/?route=product/product&path=69_93_270...
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Bert
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I recall posting a procedure here for doping a porous ceramic matrix with (cheaper!) non platinoid catalysts?
http://www.sciencemadness.org/talk/viewthread.php?tid=2329
The Cobalt version seems applicable-
Attachment: Lab-Manual-Metal-acetylacetonate-Complexes-web-1.pdf (2.6MB)
This file has been downloaded 649 times
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NEMO-Chemistry
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So am i correct in thinking this can be done with Cobalt2+ and 3+?
That would be cool. 2+ looks much less darker, but hard to tell.
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Bert
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The PDF I uploaded has instructions for Co3+, have not seen anything on +2, but haven't looked, because-
I got side tracked into the Cu ACAC, wondered if it was possibly a blue flame colorant and fuel in one? YES. There are European patents on this, used
with ammonium perchlorate for blue stars, bound with alcohol & shellac or lactose and water.
Copper benzoate melts before decomposing/burning. This is usually less desirable in an organic pyrotechnic fuel than decomposing/burning without
melting- Which is how the Cu ACAC behaves. I think I need to get/make some...
There WAS a brief mention of this compound having an awful smell? And I do wonder how impact and friction sensitive star mixtures made with this would
be.
(Edit) Hold on, I remember from March- A guy from Lacroix feu d'artifice in France who was sitting next to me at the conference in Omagari, this
came up and he said they tried it for commercial use, but had to quit using it due to workers refusing to handle it because of the smell. Described as
"odor of vinegar, squared but even worse than that sounds".
(2nd edit) I believe there is some spectrum information in the seminar book, showing Copper benzoate and ACAC relative to eachother. The benzoate came
in 2nd place. Will look for that.
(3rd edit) just for fun, how 'bout Sr ACAC oxidized by Strontium perchlorate...
And ditto for the Barium compound and Barium perchlorate.
Found posts by Mumbles and Rosco discussing both the Cu and the Co ACAV as a whistle catalyst, 6-7 years back, on another forum too.
Attachment: EP0252803A1.pdf (362kB)
This file has been downloaded 276 times
[
[Edited on 9-12-2017 by Bert]
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NEMO-Chemistry
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Interesting stuff, a bit more searching has dug up more info on procedures. Mainly on gel growing it....
Pyro isnt something i mess with, i am not even sure on the rules here anymore. I think they have downgraded the types of fireworks you can buy as
well. I noticed this year it was mainly large 100 shot+ fireworks on sale. Very few 'box's' of fireworks with a selection in.
I think pyro here is something that could get you in a world of bad trouble. I would love to try a few things out, but even owning perchlorates seems
a bad idea here. Hell you now need two licenses if you want to buy and use weed killers!.
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Bert
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It is easier in many parts of USA. I have a federal license to manufacture, and another to import.
If you want to find out, and stay out of jail in England?
I would suggest you contact Kimbolton Fireworks
[Edited on 9-12-2017 by Bert]
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NEMO-Chemistry
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Thx I will give them a call. I assumed as most oxidizers are now off limits, there isnt much you can do at home.
The rules changed in the last year or two on fireworks, i am pretty sure they even cut what you could buy to use at home. Nothing they have done in
the name of anti terror, will stop it.
The favored weapon here is running a car into people or knives.
What did surprise me was finding out that we can make and own a very small amount of black powder!
For some reason Kimbolton Fireworks rings a bell with me, I wonder if they been in the news recently for doing a display or something. I was aware we
still had manufacturers here in the UK!
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Bert
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The Reverand Ron Lancaster was the founder of Kimbolton, starting when he was a chemistry teacher at Kimbolton school. He also wrote one of the
several books I had when starting out on fireworks chemistry and techniques.
He seems to enjoy teaching...
Yes, you probably have heard of the company. Olympics, London eye New Years Eve, royal weddings and such.
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