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Lion850
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Hi CharlieA I paid Australian $30 for 500g thiourea (old stock). As far as I know the supplier I got this from does not ship overseas. Is thiourea
hard to get in the US?
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Bmoore55
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SEM images of dendrites
Some really pretty dendrites taken from a sample submitted to my lab.
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Bedlasky
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Quote: Originally posted by CharlieA  | [rquote=647265&tid=26378
...I visited the supplier yesterday to get some thiourea... ...
[/rquote]
Out of curiosity, what would 10-50g of thiourea, shipped to the US, cost? |
If you have access to ammonium thiocyanate, you can make thiourea by thermal decomposition of NH4SCN.
For test tube complex chemistry can be also used solution for cleaning silver which often contains thiourea.
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Lion850
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Something yellow-ish crystallising out of the red methanol solution as it slowly evaporates.
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Bedlasky
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What compound is that?
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Lion850
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Bedlasky it is an attempt to make nitratopentakis-tiokarbamatbismuth(III) nitrate [Bi(NO3)(CS(NH2)2)5](NO3)2. Thank heavens for copy and paste!
It is mentioned on the crystal growing wiki here:
https://en.m.crystalls.info/Nitratopentakis-tiokarbamatbismuth(III)_nitrate
While trying to find more details about this compound on the internet (I did not find exactly what I was looking for) I saw that some bismuth
complexes are made using methanol as solvent. I then did two experiments (mixing thiourea and bismuth nitrate solutions), one using water and one
using methanol. Water gave a red solution, this is slowly evaporating and so far staying red. Methanol gave a bright orange solution, which slowly
became darker and more black as it was exposed to air, and now as it evaporates down in is becoming redder.
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Lion850
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Potassium ferricyanide crystal, it is still growing.
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j_sum1
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Probably a failure but really interesting nonetheless.
I am attempting to produce Zn powder by elecrolysis in alkaline medium.
Anode is a cast zinc sphere. Cathode is copper sheet now thickly coated in zinc (and not powdering off like I expected.)
The blue coating on the anode I presume is copper zincate. Not required but pretty.
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MidLifeChemist
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It looks like a deep blue death star. Very interesting!
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arkoma
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With the exception of the piperine, these are shots of stuff that ends up "Where Beakers Go To Sit And Get Forgot About".
Piperine
Should be Lead Chloride. Had a beaker with a sat solution of Copper Chloride and chunks of lead in it on shelf for a month
The remnants of a 1940 something Mercury Dime in HNO3. Crystals of AgNO3 hard to see.
Mystery products from BenzylOH and Dichromate. Been sitting on shelf forever. Smells WoNDERFUL. Cherries.
A steel screw in a slotion of CuSO4. Grab bag of Cu powder and Iron Sulfate I reckon
"We believe the knowledge and cultural heritage of mankind should be accessible to all people around the world, regardless of their wealth, social
status, nationality, citizenship, etc" z-lib
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Fyndium
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I dug up my good old heating bath, and found that half of the liquor had crystallized into fancy formations. Did not know that calcium chloride can
also look nice, as it's usually just caulky flakey gunk in big bags to be thrown on dirt roads.
 
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Fluorite
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Sodium zincate
NaOH and battery shell ugh I shouldn't touch it 
cadmium blood test ASAP!
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Bezaleel
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Enjoying the gorgeous red of bis-dimethylglyoximenickel(II), which appears to me like the colour of a raspberry-strawberry smoothie:
[Edited on 22-11-2020 by Bezaleel]
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greenlight
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Dirty old ice pack ammonium nitrate crystals.
[Edited on 24-11-2020 by greenlight]
 
Be good, otherwise be good at it 
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Piroz
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Blue crystals are copper-calcium acetate (with white needles- that's calcium acetate). The orange liquid in smal bottles is dinitrogen
tetraoxide/nitrogen dioxide.
  
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egret
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Steam distilled benzaldehyde.
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paulll
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Mood: It's fine. Really.
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Can't find a single tumbler in the place but luckily my hobby involves collecting glassware... Merry Christmas folks!
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Bedlasky
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[MoOCl(H2O)4]+ solution in conc. HCl in volumetric flask. Concentration of Mo = 1,4 g/l.
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Piroz
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Sulfamic acid crystal
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roXefeller
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Solved the daughter's shark puzzle with a python script I wrote, called sharks_on_a_plane.py
One must forego the self to attain total spiritual creaminess and avoid the chewy chunks of degradation.
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j_sum1
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Winner of the thread!
This has been posted before in this thread: but so worth repeating.
https://labphoto.tumblr.com/tagged/portfolio
Credit to Kristof Hegadus, kristofvagyok
I doubt he is still active here and the tumblr is five years since last post.
But it is a gem that is not worth letting slide into the dark chasms of the internet.
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stibium
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Phosphorescent materials based on alkaline earth sulfides and zinc sulfide
From left to right:
SrS:Eu
CaS:Eu,Ce,Tm
SrS:Bi
CaS:Bi,Ag
ZnS:Cu
I explain how I made them at the thread "making phosphorescent materials"
  
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greenlight
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| Quote: Originally posted by stibium | Phosphorescent materials based on alkaline earth sulfides and zinc sulfide
From left to right:
SrS:Eu
CaS:Eu,Ce,Tm
SrS:Bi
CaS:Bi,Ag
ZnS:Cu
I explain how I made them at the thread "making phosphorescent materials"
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Beautiful!
Be good, otherwise be good at it
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Sulaiman
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Very nice
CAUTION : Hobby Chemist, not Professional or even Amateur
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j_sum1
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Ok. I am indpired. I am going to have tobread that procedure.
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