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Author: Subject: Pretty Pictures (1)
kristofvagyok
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[*] posted on 17-6-2013 at 14:28


Someone asked a few days ago, that what is my favorite chemical reaction. So I made it:

When we place a piece of copper wire to a silver (nitrate/sulfate) solution beautiful silver crystals will start to grow on the surface of the copper, while the copper dissolves into the solution.









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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Squall181
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[*] posted on 17-6-2013 at 17:09


Copper Acetate Crystals, not sure what the light blue crystals are. I made these by dissolving copper (II) oxide in an excess of acetic acid and let the mixture evaporate in my desiccator.


CuAc.jpg - 498kB
CuAc-2.jpg - 442kB
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Mailinmypocket
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[*] posted on 18-6-2013 at 09:33


Phthalimide crystals that sublimed in the mouth of a reaction tube, taking macro pictures with an iPhone is ridiculous :(

image.jpg - 57kB image.jpg - 47kB

[Edited on 18-6-2013 by Mailinmypocket]
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Finnnicus
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[*] posted on 18-6-2013 at 09:56


Quote: Originally posted by Mailinmypocket  
taking macro pictures with an iPhone is ridiculous


I know that feel bro. I know that feel... Stupid apple.




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Endimion17
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[*] posted on 18-6-2013 at 11:06


Oh great, new wallpapers for my desktop have arrived. :D



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Mailinmypocket
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[*] posted on 18-6-2013 at 11:21


Quote: Originally posted by Endimion17  
Oh great, new wallpapers for my desktop have arrived. :D


Ain't this thread awesome!!? :D
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Endimion17
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[*] posted on 18-6-2013 at 11:45


Quote: Originally posted by Squall181  
Copper Acetate Crystals, not sure what the light blue crystals are. I made these by dissolving copper (II) oxide in an excess of acetic acid and let the mixture evaporate in my desiccator.


Dark ones are anhydrous, lighter ones should be a dihydrate.


@Mailinmypocket It makes my work on the computer much easier. Now I'm using this first copper acetate photo because it looks cold, and the weather around here is turning into a first heat wave this year. :(




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kristofvagyok
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[*] posted on 19-6-2013 at 13:38


Just another one, my fav from the silver crystal series:






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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ElizabethGreene
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[*] posted on 25-6-2013 at 06:24


WP_001219.jpg - 78kB

"Oops?"
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Wizzard
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[*] posted on 25-6-2013 at 07:19


My single largest Neodymium Sulfate crystal - The cleavage planes are a very harsh mistress. Such is life. Crystal was just under 1" on it's longest side, and .75" tall. It has a single zone in the larger part, which is nearly 2ccs, and is perfect, no fractures or inclusions.

I can make smaller ones all day long - The two largest ones were riddles with fractures, one remained in 2 pieces, the other became far more. There will be more to come.




larger:
http://imgur.com/BncMzL4

[Edited on 6-25-2013 by Wizzard]

[Edited on 6-25-2013 by Wizzard]
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bfesser
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[*] posted on 25-6-2013 at 08:14


Gneiss cleavage you have there, <strong>Wizzard</strong>.
<img src="http://itc.gsw.edu/faculty/bcarter/physgeol/metrx/gneiss.JPG" width="225" />

[Edited on 7/8/13 by bfesser]




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[*] posted on 25-6-2013 at 09:38


I almost forgot to introduce myself. Greetings from Russian Hyperlab!

propenes2.jpg - 47kB
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mr.crow
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[*] posted on 25-6-2013 at 14:58


Wow, interesting nitro compounds. Be careful with the top right one



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Eddygp
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[*] posted on 26-6-2013 at 05:42


Wow those last compounds are beautiful and have a beautiful chemistry, of course. I like the light yellow one (top right) >:) .



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Eddygp
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[*] posted on 26-6-2013 at 05:50


Quote: Originally posted by watson.fawkes  
Quote: Originally posted by Adas  
The lead must have contained some copper, which is known to create those rainbow colors. Or can other metals do this as well?
It's called thin-film interference and occurs with oxide layers of most metals.

(I know this was quite a while ago)
I love that effect. I have managed to get that on many metals, including iron, nickel, lead and niobium :) The process is called tempering , by the way.

[Edited on 26-6-2013 by Eddygp]




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plante1999
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[*] posted on 26-6-2013 at 05:52


I think one is phenyl 2 nitropropene, but what are the three other ones?



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Endimion17
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[*] posted on 26-6-2013 at 06:16


Quote: Originally posted by Eddygp  
(I know this was quite a while ago)
I love that effect. I have managed to get that on many metals, including iron, nickel, lead and niobium :) The process is called tempering , by the way.

[Edited on 26-6-2013 by Eddygp]


Tempering might create such thin films, but not neccesarily. Tempering is simply a name for a hardening process. The appearance of thin film depends on the atmospheric conditions involved and can come as a result of other processes, too.




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Adas
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[*] posted on 26-6-2013 at 08:58


Quote: Originally posted by plante1999  
I think one is phenyl 2 nitropropene, but what are the three other ones?


Isn't phenyl-2-nitropropene used to make meth? Or is there a mess in my memory?




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mayko
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[*] posted on 26-6-2013 at 12:41


Cobalt nitrate crystals, clinging to a test tube...



kobald.jpg - 110kB




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[*] posted on 27-6-2013 at 04:51


Quote: Originally posted by Adas  
Isn't phenyl-2-nitropropene used to make meth? Or is there a mess in my memory?

Not only meth. Amphetamine too. Other nitro-compounds can de reduced to PMA, DOM (STP), MDA. Monomethylation of MDA gives MDMA, and monomethylation of PMA yields PMMA. Alternative route: first make a ketone (for example, methylenedioxyphenylacetone) then react it with MeNH2 and reduce with NaBH4.

[Edited on 27-6-2013 by tsukasa]
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[*] posted on 27-6-2013 at 05:09


Nice work done! I'am wondering in what kind of solvent and temperature you did the condensation between benzaldehyde and nitroethane?

In my case it was rapidly undergoing a polymerization and the solvent turned orange-red. Hydrogenisation is not so straightforward because the stable conjugated system.
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[*] posted on 27-6-2013 at 07:20


Quote: Originally posted by Number 9  
Nice work done! I'am wondering in what kind of solvent and temperature you did the condensation between benzaldehyde and nitroethane?

Microwave synthesis was used. Small amount of glacial acetic acid is used as solvent (for example, 5 mL of acid per 30 mL nitroethane). Cyclohexylamine was used as a catalyst. The RM was heated in microwave oven for 10-15 seconds, until boiling starts and then cooled to RT. This was repeated 5 times.
Quote: Originally posted by Number 9  

In my case it was rapidly undergoing a polymerization and the solvent turned orange-red.

Polymerization will always take place. So recrystallization (in this case from IPA) is necessary to get product with high purity.
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[*] posted on 28-6-2013 at 06:21


Quote: Originally posted by kristofvagyok  
Just another one, my fav from the silver crystal series:




Ridiculously beautiful
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[*] posted on 28-6-2013 at 06:32


Recrystallizing Acetylsalicylic acid in IPA

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[*] posted on 28-6-2013 at 06:56


my ghetto distillation of DCM. No goop to clean from the glassware!!




[Edited on 28-6-2013 by togipaw]
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