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bfesser
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[*] posted on 16-12-2012 at 15:05


What the shit is 2-3 <em>inches</em>‽ Do you mean 5.08 cm to 7.62 cm?



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[*] posted on 16-12-2012 at 15:12


On the topic of bromine...

<img src="http://24.media.tumblr.com/5372f93ac6771cf50b5a30d1897af726/tumblr_mf5c6ipklf1ri4na2o1_1280.jpg" width="800" />

<!-- bfesser_edit_tag -->[<a href="u2u.php?action=send&username=bfesser">bfesser</a>: reduced image width]

[Edited on 7/7/13 by bfesser]




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kristofvagyok
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[*] posted on 16-12-2012 at 15:12


Let's see something special, 62g of metallic rubidium(:


And something what looks nice, an organic intermediate:



P.S.: should I post a "manual" illustrated with pics that how should anyone work with pyrophoric substances? E.g.: with metallic rubidium?

[Edited on 16-12-2012 by kristofvagyok]




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[*] posted on 16-12-2012 at 15:13


Quote: Originally posted by bfesser  
What the shit is 2-3 <em>inches</em>‽ Do you mean 5.08 cm to 7.62 cm?


No that sounds far too big!

2-3 inches is more appropriate.
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[*] posted on 17-12-2012 at 07:02


Quote: Originally posted by kristofvagyok  

And something what looks nice, an organic intermediate:



[Edited on 16-12-2012 by kristofvagyok]


WHAT... the hell.. is that? :O :O




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[*] posted on 17-12-2012 at 09:57


Quote: Originally posted by Adas  
WHAT... the hell.. is that? :O :O

Diisopropyl oxaloacetate or it's tautomer, diisopropyl hydroxymaleic acid. It was a side product of a reaction.

It is easily formed if diisopropyl tartarate is reacted with cc H2SO4 in alcoholic solutions.




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[*] posted on 17-12-2012 at 14:20


kristof:

What's being done with/to that rubidium?




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[*] posted on 17-12-2012 at 15:41


Quote: Originally posted by blogfast25  
kristof:

What's being done with/to that rubidium?

The larger part will go to the metalorganic research group (I have no idea what do they plan with it) and the rest will stay at us for presentation purposes (e.g.: reaction on air, with water...).




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[*] posted on 17-12-2012 at 17:43


Kristof you have the best job in the world. Thanks for posting all those pictures, really awesome to see.



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[*] posted on 18-12-2012 at 13:33


Thanks Kristof.



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[*] posted on 18-12-2012 at 14:17



Anyone want a sniff from it? It has a really characteristic odor :D

And something what is simple but looks nice:

Some random test tubes laying around.




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[*] posted on 20-12-2012 at 15:49


1Kg??? I bet it is for making nitriles



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[*] posted on 20-12-2012 at 16:02


Quote: Originally posted by mr.crow  
1Kg??? I bet it is for making nitriles

Yes, I would use it to make nitriles, but the only problem is that the reaction is not so easy as it seems and the only product what comes out is something what is not preferred.

But here's another pics(:


A polyhydroxipyrrole under UV.

[Edited on 21-12-2012 by kristofvagyok]




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[*] posted on 21-12-2012 at 02:45


Damn, that's several times more than the greatest amount of KCN I've seen with my eyes.
Lots of lethal doses. LOL




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[*] posted on 21-12-2012 at 03:42


Shouldn't this topic be sticky or pinned?



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Pyro
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[*] posted on 21-12-2012 at 14:52


yeah! sticky sticky!
this thread should be as sticky as sticky the stick insect who got stuck on his sticky bun!




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[*] posted on 22-12-2012 at 05:00



When something is described everywhere as a white crystalline solid and if you make it then it is beautiful purple oil, then it is a really bad sign.

And some funny reagent:


Various butyl lithiums, an awesome highly pyrophoric reagent dissolved in hexane.

Anyone wants to open one bottle? :D




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[*] posted on 23-12-2012 at 18:17


Tell me about your beautiful purple oil!



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[*] posted on 24-12-2012 at 08:09


Quote: Originally posted by Oscilllator  
Tell me about your beautiful purple oil!


It'a an N-trifluoracylated phenylalanine derivative substitued on the aromatic ring with a few methoxy and a nitro group. I have no idea what could cause the purple color... Maybe the NMR will tell the truth(:




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[*] posted on 26-12-2012 at 14:39


they're GROWING! my little ones!!!! MWUHAHAHAHAHA
Br2 in an ampule on my desk


Br21.jpg - 134kBBr22.jpg - 143kB




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[*] posted on 28-12-2012 at 09:50




Iodine crystals. Looks a lot like graphite.
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[*] posted on 28-12-2012 at 10:37


how did you get those? mine look like broken chips :P yours look like little pebbles or something



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[*] posted on 28-12-2012 at 10:39


Mine look like round, slightly damp balls... then again, I didn't really bother to dry them before ampouling. Maybe I should make another ampoule?



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[*] posted on 28-12-2012 at 10:44


Quote: Originally posted by Pyro  
how did you get those? mine look like broken chips :P yours look like little pebbles or something


Theirs looks a lot like my commercial "resublimed" iodine... actually it looks exactly like it. Perhaps this is how it normally looks? I have also seen it in the form of little prills though... curious!
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[*] posted on 28-12-2012 at 10:58


All the tiny stuff is the broken up "shake" at the bottom of the container. Most of the material is actually more chunky, as you can see in this picture.



The iodine itself was sublimed, melted under sulfuric acid (to consolidate the material, it's too light and feathery otherwise), rinsed, broken up with a scoopula, and then dried in a small desiccator. It's been around for a few years, resubliming in that container. There's always a slight purple haze in the bottle.
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