FrankMartin
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Desperately seeking method for ethyl bromide.
We have elemental bromine and now we need a catalyst to drive the following reaction:
EtCl + 0.5Br2 --> EtBr + 0.5Cl2
Properties: (Boiling Points)
EtCl = 12.3degC
Br2 = 60decC
EtBr = 37degC
Cl2 = -34degC
Please help.
Frank
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querjek
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Do you have to start from EtCl? There's a thread on this board about generating EtBr from EtOH.
it's all about chemistry.
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xwinorb
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I suggest to you to look in the Rhodium site under "Nitroalkane FAQ" or something like that.
Easy, I have made it twice. As it is recomended, colect it under water, or it will simply evaporate out. You probably will see it bubling when doing
the reaction, but you might not see it in the condenser because it is just evaporating out. So, have the condenser output under water to collect the
EtBr.
After a while, it starts showing on the bottom. When finished, separate and dry with epson salts. It becomes clear then.
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spong
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http://www.books-about-california.com/Pages/Experimental_Org...
Just keep it cold and you'll be ok, I didn't collect under water because I have a ground glass setup and it's difficult, I kept the receiver in an
icebath with a little water in it to start and you'll be ok. It smells very sweet and fruity just so you can avoid it.
[Edited on 2-1-2011 by spong]
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FrankMartin
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Thanks to all. I can make it by the usual methods, but I have some bromine I want to use up.
Frank
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Sedit
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Then perform the finkelstein reaction in acetone with Sodium bromide. If your hell bent on using up your bromine im sure you could use it for
something that makes more sense.
Knowledge is useless to useless people...
"I see a lot of patterns in our behavior as a nation that parallel a lot of other historical processes. The fall of Rome, the fall of Germany — the
fall of the ruling country, the people who think they can do whatever they want without anybody else's consent. I've seen this story
before."~Maynard James Keenan
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chemrox
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Like the very useful compound bromobenzene!
"When you let the dumbasses vote you end up with populism followed by autocracy and getting back is a bitch." Plato (sort of)
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Nicodem
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Thread Moved
3-1-2011 at 10:06 |
madscientist
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| Quote: | | It smells very sweet and fruity just so you can avoid it. |
No one should be familiar with the scent of ethyl bromide. It is a very potent carcinogen, as is often the case with alkylating agents.
I weep at the sight of flaming acetic anhydride.
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DJF90
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I found that HBr fumes also share a similar fruity odour.
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