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Proteios
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Jonny... as you couldnt be bothered to read it the first time... here it is again!
| Quote: | Originally posted by Proteios
If I had to do and experiment with D6 benzene.... i would buy the stuff.....its cheap and easily available. If i had to make the stuff..... I would
use the above literature proc. Its SIMPLE, labour effiecient, and it works. The idea that I would waste months figuring out reaction
conditions/purification protocols and several tens of thousands of dollars building kit for some fiddly hot gas reaction somehow doesnt have the same
appeal.
AGAIN THIS IS LAB SCALE WORK.... NOT HEAVY INDUSTRY! |
READ THE THREAD JONNY
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mick
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Sigma-Adrich do not manufacture basic deuterated solvents, they might buy them in and might use them to manufacture high value deuterated chemicals,
there are only so many primary sources of these type of chemicals.
We had a thing in the papers here (UK) about some one using osmium tetraoxide in a dirty bomb. If you want to buy osmium tetraoxide I think it all
comes from the same place whether you buy it from Aldrich, Fisher etc. If anyone started to buy enough stuff to make a dirty bomb I think the
manufacturers
would know. .
PS D2O is not very expensive if you buy it in bulk. Deuterated chloroform is only 6 UK pounds for a 100g and deuterated DMSO (with a lot of deuterium)
is 60 UK pounds.
mick
typo
[Edited on 12-9-2004 by mick]
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vulture
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A warning for all of you
1) This is degenerating into a flamewar
2) Don't double post, edit your posts!
3) Keep it on topic. The thread says deuterated acetone, NOT benzene.
I won't tolerate any more shit. If someone, I don't care who, is going to continue this vendetta, this thread is closed. No exceptions.
One shouldn't accept or resort to the mutilation of science to appease the mentally impaired.
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JohnWW
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| Quote: | Originally posted by mick
Sigma-Adrich do not manufacture basic deuterated solvents, they might buy them in and might use them to manufacture high value deuterated chemicals,
there are only so many primary sources of these type of chemicals.
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Wrong - unless they have changed their stock radically in the most recent years. I happen to possess one of their catalogs, of several years ago, in
which they list deuterated chemicals for sale.
John W.
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JohnWW
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Regarding deuterated compounds sold by Sigma-Aldrich: here are the URLs of their PDF catalog parts which detail their deuterated solvents, and other
isotopically labeled products including C-13 and N-15 compounds. I searched their site for PDF files containing the phrase "deuterated
solvents":
http://www.sigmaaldrich.com/img/assets/9742/NMR_web.pdf
http://www.sigmaaldrich.com/img/assets/9742/NMR1-24.pdf
http://www.sigmaaldrich.com/img/assets/15469/al_chemfiles_v2...
http://www.sigmaaldrich.com/img/assets/4242/fl_analytix1_200...
http://www.sigmaaldrich.com/img/assets/3760/al_acta_33_3.pdf
http://www.sigmaaldrich.com/img/assets/9742/Cat7-10.pdf
http://www.sigmaaldrich.com/img/assets/3760/al_acta_34_2.pdf
http://www.sigmaaldrich.com/img/assets/4242/fl_analytix1_200...
John W.
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mick
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Owe you an apology JonnyWW, Aldrich-Sigma do manufacture deuterated solvents though their subsidary Isotech.
Apparently benzothiophene, benzenethiol and p-methylbenzenethiol can be per-deuterated with D2O containing dissolved metal salts at 250-315 oC and
then desulfurizing the products gave per-deutero ethylbenzene, benzene and toluene in >95% yield. That all the abstract says.
mick
[Edited on 13-9-2004 by mick]
I meant to put this in the D2O thread, sorry
mick
[Edited on 13-9-2004 by mick]
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JohnWW
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Thank you, Mick.
John W.
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vulture
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Beware
Seems like my warning wasn't enough. You're walking a very thin line here.
Besides, refrain from posting single line posts.
One shouldn't accept or resort to the mutilation of science to appease the mentally impaired.
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halogen
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minor excursion
Is DF worse than HF
And Thallium deuteride makes an hbomb green if so, pray it happens and help some foreign country with nuclear technology. Say the Tl is a nuclear
catalyst or something.
F. de Lalande and M. Prud'homme showed that a mixture of boric oxide and sodium chloride is decomposed in a stream of dry air or oxygen at a red heat
with the evolution of chlorine.
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unionised
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Thanks for letting us know about your minor excursion. Please tell us when you are back on the planet Earth.
Or, to put it another way, WTF are you on about?
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