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UnintentionalChaos
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Unfortunately, I wasn't planning on doing any additional videos unless I get a new camera. The sound is shot and I can't use an external mic with it.
I get so much more done without constantly editing and recording, too...
I did do a writeup with some pictures in prepub though, which I suggest you have a look at.
Department of Redundancy Department - Now with paperwork!
'In organic synthesis, we call decomposition products "crap", however this is not a IUPAC approved nomenclature.' -Nicodem
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kristofvagyok
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Making some water free KOH by melting and boiling it out in a silver pot. It is ready when it stops boiling.
Care should be taken while working with it, especially when it's molten 
I have a blog where I post my pictures from my work: http://labphoto.tumblr.com/
-Pictures from chemistry, check it out(:
"You can’t become a chemist and expect to live forever." |
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Brain&Force
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Kristof, your pictures are amazing. What were you trying to make?
I'll try to compete with my more modest photos:
1. Terbium, after a real beating. It's a lot shinier on the inside. Wikipedia says it's soft, but doesn't say it's ridiculously durable.
2. Bismuth stairs.
 
Edit: Kristof, I was referring to your post with the hydrogen apparatus.
[Edited on 2-12-2013 by Brain&Force]
At the end of the day, simulating atoms doesn't beat working with the real things...
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kristofvagyok
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For the hydrogenation we tried to make a 1,1 disubstitued hydrazine from a nitroso coumpound (both quite toxic...). Sadly the N-N bond broke and I
got back the disubstitued amine and some ammonia.
For the molten KOH, we needed something to distill from ethylamine, since we opened a few cylinders of it, what were stored for a few years. It was
great to distill 2-5 liters of this gas, everything smelled like fish, even since it was under a fume hood 
I have a blog where I post my pictures from my work: http://labphoto.tumblr.com/
-Pictures from chemistry, check it out(:
"You can’t become a chemist and expect to live forever." |
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Bezaleel
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A very all day compound: K2SO4
  
The individual crystals making up this cluster are about 1 cm long.
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Hegi
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Quote: Originally posted by kristofvagyok  |
Making some water free KOH by melting and boiling it out in a silver pot. It is ready when it stops boiling.
Care should be taken while working with it, especially when it's molten
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definitely would be scared to do this thing... but anyway, very interesting
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Zephyr
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some beautiful uranophane crystals posted by kristofvagyok in the uranium thead.
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Pyro
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m-dinitrobenzene
 
smells a bit like almonds, but more like marzipan. in the spirit of Christmas
all above information is intellectual property of Pyro. |
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kristofvagyok
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A biphasic highly fluorescent oil under UV light, containing some substitued coumarine what I made a few day ago.
I have a blog where I post my pictures from my work: http://labphoto.tumblr.com/
-Pictures from chemistry, check it out(:
"You can’t become a chemist and expect to live forever." |
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Sublimatus
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One of your best photos, kristof. 
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mr.crow
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New element sample Probably only a few mg
Double, double toil and trouble; Fire burn, and caldron bubble
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Mailinmypocket
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Tried the oxidation of paracetamol to p-benzoquinone with aqua regia. The appearance looks good but this afternoons melting point will give a better
idea of how the reaction turned out, looks nice though
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Brain&Force
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Not chemistry related, but pretty nonetheless. The panorama feature on my camera is useful for capturing such phenomena.
I wish I could upload the monster 2800x1440 full size photo.
Bonus: Is it a solar halo, or a street lamp at 1.21 gigawatts?
At the end of the day, simulating atoms doesn't beat working with the real things...
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HeYBrO
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Hydrolysis of ASA to yield SA gave some nice crystals: ( 95% yield too  )
Some ethyl acetate from non-acetone nail polish remover.
[Edited on 14-12-2013 by HeYBrO]
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DJF90
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@Mailinmypocket: Looks really good. It appears as if you sublimed it? I've noticed that no mater how clean you make it, it eventually gets a green
tinge and it can only get worse from there. Use it as soon as possible! Maybe storing under argon would help...
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Mailinmypocket
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@DJF90 - Thanks, not sublimed though. These crystals were produced by 2x recrystallization from boiling 90% 2-propanol. I plan on sublimating them
before taking a mp though. After the initial reaction with aqua regia, quenching with water, and filtration I noticed small black bits in the filter
cake.
When dissolved in boiling alcohol the first time it yielded an extremely deep red (almost black) solution. I think there may have been some over
oxidation or likely a bit of chlorination happening during the reaction, despite being kept in ice, which yielded side products. Anyhow, left to cool
slowly with insulation long orangey-yellow needle like crystals formed from the wine red liquor which were again, recrystallized from boiling
2-propanol. That is what produced the crystals seen above. I took your suggestion and flushed the bottle with argon in the meantime until a
sublimation and mp can be done though.
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Tdep
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Location: Laser broken since Feb 2020 lol
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Mood: PhD is done! It isn't good but it's over lol
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Bismuth trioxide thermite, a series of explosions that happened in a short amount of time
   
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DutchChemistryBox
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I don't have the best camera. I was inspired by other photo's, so I thought let's try it myself.
<img class="decoded" src="http://www.sciencemadness.org/talk/files.php?pid=311781&aid=28118"
alt="http://www.sciencemadness.org/talk/files.php?pid=311781&aid=28118"></img>
[Edited on 19-12-2013 by DutchChemistryBox]
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MrHomeScientist
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Very pretty. What is it?
Best to include a description of your experiment along with the photos, as others have done!
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Tsjerk
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GFP expressing E. coli
Not the best quality picture ever, but showing clear fluorescence though.
This is a 50 ml tube with a pellet of E. coli expressing green fluorescent protein (GFP) above a UV lamp. The picture is taken through a filter,
filtering the UV/blue light, but not the green light.
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SM2
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Some pretty pictures
They are all empty, LOOOOOOONG ago.
Attachment: Vintage Pharmaceuticals.rar (2MB)
This file has been downloaded 1173 times
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bfesser
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Threads Merged
19-12-2013 at 14:22 |
thebean
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| Quote: Originally posted by Mailinmypocket | Tried the oxidation of paracetamol to p-benzoquinone with aqua regia. The appearance looks good but this afternoons melting point will give a better
idea of how the reaction turned out, looks nice though
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Would you care to right your procedure up? I'd like to try it.
"You need a little bit of insanity to do great things."
-Henry Rollins
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Mailinmypocket
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Sure! I used the procedure posted by our own benzylchloride1 in this thread:
http://www.sciencemadness.org/talk/viewthread.php?tid=8250
I still have the stuff stored under argon waiting for a chance to take a melting point, when time permits... Damned holidays
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HeYBrO
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Here is an old photo I found when I stained a nematode with methylene blue (which stains acid regions like proteins and nucleic acids)
Notice the flagella which help nematodes move.
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kristofvagyok
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Some trimethylsilyl acetylene’s silver salt just when it was ignited.
I have a blog where I post my pictures from my work: http://labphoto.tumblr.com/
-Pictures from chemistry, check it out(:
"You can’t become a chemist and expect to live forever." |
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