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Author: Subject: Pretty Pictures (2)
plastics
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Quote: Originally posted by Hegi
 Quote: Originally posted by Tetra Double recrystallized Nitroguanidine, formula CH4N4O2

Where did you get it?

Tried it myself ages ago

Hegi
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Quote: Originally posted by plastics
Quote: Originally posted by Hegi
 Quote: Originally posted by Tetra Double recrystallized Nitroguanidine, formula CH4N4O2

Where did you get it?

Tried it myself ages ago

Very nice guys, wish I had more time for organic synthesis...

Our webpage has been shut down forever cause nobody was willing to contribute. Shame on you all!!!
Σldritch
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Aluminium Copper Alloy

Hegi
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 Quote: Originally posted by Σldritch

Our webpage has been shut down forever cause nobody was willing to contribute. Shame on you all!!!
Σldritch
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Im trying to make raney copper and this was seen on a blob of 1:1 Al:Cu metal that was cooled by pouring into water. The picture was taken through a loupe but im still impressed by the crystal size considering the cooling rate. It is probably Al2Cu .
TheNerdyFarmer
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It is beginning to get very cold where I live. I was doing an inspection of my chemicals (to make sure no glass bottles broke due to freezing) and was pleasantly surprised with this. The water crystals in this have formed nice, needle like structures in the bottle.

wg48
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Mandelbrot set

View my zoom movie into the Mandelbrot set. I trimmed down from 150MB

Attachment: trip5.avi (6.9MB)

[Edited on 19-1-2018 by wg48]
violet sin
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Got a small vial of trimethoxy benzaldehyde some time ago, extra toss in from getting indium sample. Well, I found it yesterday when cleaning. KA-THUMP! What was that... Ohh just a pile of stuff put in an odd location months ago.

Any how it was brown and odd looking. Got to check the melting point sans thermometer, = melts under boiling water temp. But only gave back brown looking crud. Did again and left wrapped in a towel to cool, big plates but not exactly better, same appearance. But it was soluble in water to a minor extent and I just used that capacity. Made a nice sat solution while learning the fun of makeshift filter and clogging said filter.

But the results were at least aesthetically pleasing, even if grueling to do. The day job suffered a touch from low sleep science when you can, consequences be damned.

Crystals <------> crude mid solidification

Suggestions for a legit use?

[Edited on 20-1-2018 by violet sin]

Melgar
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Oh, hey, I know something about that.

The first step in the process of learning something is admitting that you don't know it already.

I'm givin' the spam shields max power at full warp, but they just dinna have the power! We're gonna have to evacuate to new forum software!
violet sin
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You sure do man, it was almost lost to a crash of phosphoric acid, oil of wintergreen, Cu/NH3 cellulose solution, and some other random crap(not headed to garbage) left in the gutted out microwave that is FINALLY heading to the dump. Everything lived some how even after getting briskly lifted and tossed in a truck, lol.

Here are a couple pics from actual time in workspace. I was trying to study up and identify positively rhenium powder from an eBay purchase. It did not like most of the chem I threw at it. The borax bead test worked though. Sulfuric acid, not so much. Hydrogen peroxide 30% dented it though, add in some ammonia and it was dissolving the dust. And a last test, a tiny bit heated in a test tube with air in there made a subliming straw yellow oxide. Missing some pics though...

Ammonium perrhenate (1-4)

Ammonium tungstate and a super tiny mag stir w/ Ru powder

We should come up with a "testing eBay buys" thread for frustrated purchasers. Man that would be useful, lost ~230$a couple years back on fake Or powder... But if you figure it out soon enough, eBay covers it. [Edited on 20-1-2018 by violet sin] aga Forum Drunkard Posts: 7030 Registered: 25-3-2014 Member Is Offline Drinking too much is bad for the health, however Nature makes use of Everything. CharlieA International Hazard Posts: 578 Registered: 11-8-2015 Location: Missouri, USA Member Is Offline Mood: No Mood That's an example of green chemistry, isn't it? WouldSynthesizeForFood Harmless Posts: 8 Registered: 19-2-2018 Location: Ukraine Member Is Offline Mood: No Mood Some photos of a mixture of p-xylene and water from who knows how long ago: [Edited on 19-2-2018 by WouldSynthesizeForFood] violet sin International Hazard Posts: 1331 Registered: 2-9-2012 Location: Back yard staring at stars Member Is Offline Mood: Good 1)Thrift store find, another good book. 2) EBay purchase 5$ = 50 switches.

3) Can't really tell, but that's bees wax bubbling up outta yuck soup... Rotting pollen etc. from a failed colony.
4) Built another ATX power supply for working around with small projects. The two power resistors are fixed on a heat sink over the exhaust fan, conveniently blowing outward.

LearnedAmateur
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Whoops, might’ve left some sodium sulphate solution in a separatory funnel. Also, a sodium sulphate forest in a 250mL RBF.

In chemistry, sometimes the solution is the problem.

It’s been a while, but I’m not dead! Updated 7/1/2020. Shout out to Aga, we got along well.
RogueRose
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I think this is a CaSO4 crystal in a solution of HNO3 and H2SO4. I took a concentrated solution of Ca(NO3)2 and added it to a 30% solution of H2SO4, with excess H2SO4, filtered and then tried to distill off some of the HNO3 (didn't work to well) but about 150ml of liquid came over, so there was more CaSO4 dissolved in the hot solution after about 2 weeks I checked the bottle and found these little beauties growing.

crystal grower
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Wow those are beautiful.
Is it possible to take them out of the bottle or are they too britle?

Elements collected:31/92
Last acquired: Co
Also make sure to check out my and hegi's website :
http://pieceofscience.com
Thanks.
Sulaiman
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 Quote: Originally posted by violet sin We should come up with a "testing eBay buys" thread for frustrated purchasers. Man that would be useful, lost ~230\$ a couple years back on fake Or powder... But if you figure it out soon enough, eBay covers it.

I too have had difficulty fiding pure Or powder

CAUTION : Hobby Chemist, not Professional or even Amateur
LearnedAmateur
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 Quote: Originally posted by crystal grower Wow those are beautiful. Is it possible to take them out of the bottle or are they too britle?

On the last page, I had a similar thing going on with the fluffy crystal balls. They’re far too delicate to do anything with and just disintegrate when touched, which is disappointing to say the least. Best thing to do would be to transfer the solution into a fresh ‘display’ container to let it evaporate off, where it can then be capped and stored (not sure how they behave with long exposure to air, but I’ve grown some stunning crystals in the past just for them to fall apart into powder!)

In chemistry, sometimes the solution is the problem.

It’s been a while, but I’m not dead! Updated 7/1/2020. Shout out to Aga, we got along well.
violet sin
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sulaiman: ya got me there... Ir as in Iridium... 99% of the time I'm typing on a phone that was popular in, wow I'm not sure. wiki- "The smartphone was unveiled on 19 February 2013". I've been a victim of the dreaded Auto-Correct, no matter how it occurred i blame the operator

Vicarious3rdEye2
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Not quite sure what this is but it is beautiful

I ran a cell using two graphite electrodes in my first attempt to make NaBrO3 from NaBr and after putting the solution after electrolysis into a beaker and added some KOH in the hopes that the less soluble KBrO3 would crystallize out I ended up with this.

The Volatile Chemist
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That looks sweet. It's always fun to go down to the lab and find something like that, even when you're not 100% certain what it is.

Vicarious3rdEye2
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Yeah I know right?

I left the solution sitting in a beaker for about three days until I figured out a way to get the graphite powder out of solution without using a glass fritt and then saw this sea urchin looking crystal and decided it was just too pretty to dissolve it again.

I actually had another strange formation, I did the procedure for p-DDNP from acetaminophen nitration written by I believe the member nitro-genes which was an excellent and fun project. I was recrystallizing recovered Isopicramic acid before diazotization and I had it sitting in a weighing boat dissolved in MeOH and it seems that as the solvent evaporated it grew these strange looking crystals

Morgan
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Yellow Cardinal

[Like its red counterpart, this rare cardinal relies on the carotenoids (organic pigments) in its diet to turn its feathers a bright yellow. But diet isn't everything: Research has shown that certain genes determine which of several carotenoids the bird deposits into its feathers and bare skin.]

[For instance, red cardinals synthesize their red hues from four yellow or orange pigments they consume, according to research published in the journal The Condor in 2003.]

[In that study, researchers found that the plumage of a yellow Northern cardinal collected in 1989 in Baton Rouge, Louisiana, didn't show any of the red carotenoids found in common Northern cardinals. Assuming the yellow bird had access to similar foods as the red-hued ones, the researchers concluded that this bird couldn't manufacture any of the four carotenoids typically found in a cardinal's red feathers. A genetic mutation, they said, knocked out the bird's ability to carry out the chemical reactions that would have led to red feathers.]
https://www.livescience.com/61897-rare-yellow-cardinal-alaba...

Σldritch
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A not very natural scenery

Im making a lot of Copper Acetylide for an upcoming project, this is a mixture of Cupric Chloride and Nickel Chloride that i have lazily let dry out over a couple of weeks before i separate it. It grew some nice structures and with the blue wall of my lab it looks like some kind of scenery.

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 Sciencemadness Discussion Board » Fundamentals » Miscellaneous » Pretty Pictures (2) Select A Forum Fundamentals   » Chemistry in General   » Organic Chemistry   » Reagents and Apparatus Acquisition   » Beginnings   » Responsible Practices   » Miscellaneous   » The Wiki Special topics   » Technochemistry   » Energetic Materials   » Biochemistry   » Radiochemistry   » Computational Models and Techniques   » Prepublication Non-chemistry   » Forum Matters   » Legal and Societal Issues   » Test Forum