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Boffis
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Ferrocyanide when finely ground is almost colourless but ferricyanide and nitroprusside are darker yellow to yellow-orange depending on particle size.
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kristofvagyok
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Refining some palladium from 10% Pd/C with aqua regia:
-this color was always one of my favorites(:
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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Adas
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Beautiful. Looks like... a strawberry juice 
Rest In Pieces!
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S.C. Wack
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...so, so envious
...
Water. Solutions of the ferrocyanide are of course pure yellow.
One who gets ferricyanide for the ferrocyanide price should inquire about larger quantities.
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chemcam
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In water it becomes bright yellow. So then the label is correct and I am happy. Ferrocyanide is it.
Why do you suppose it is the exact color of the ferricyanide until I grind it up a bit? Do larger crystals appear darker due to light or something?
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garage chemist
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I have some crystalline ferrocyanide and it is pure yellow even with a crystal size of several millimeters.
The red ferricyanide gives a yellow solution in water! You definitely have ferricyanide, contact your supplier and complain!
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S.C. Wack
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Well, IMHO there is a apple-green note in mine...yes my statement was not correct...it's more that one is much darker and more electric...ferrocyanide
is pale and plain.
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Endimion17
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How can you stand using such obsolete terminology? Ferrocyanide and ferricyanide... It was invented by the devil himself to make people angry.
Hexacyanoferrate(II) and hexacyanoferrate(III). Meaningful, informative and systematic.
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chemcam
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Quote: Originally posted by Endimion17  | How can you stand using such obsolete terminology? Ferrocyanide and ferricyanide... It was invented by the devil himself to make people angry.
Hexacyanoferrate(II) and hexacyanoferrate(III). Meaningful, informative and systematic. |
On forums I try to use the most common terms so people understand what I am saying and don't have to decipher each word one by one. But anyway, so far
I have gotten conflicting information about how to figure out what I have. I think what I will do is just bring back the bottle to my chem supply
warehouse and ask them if they made a mistake.
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Sublimatus
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Taking a shot at isolating potassium via that strange reaction of Mg, KOH, and t-butanol.
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Oscilllator
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Oh dear, I wouldn't use a 3-necked flask for that. Apparently the KOH corrodes the glass quite rapidly. Better to use an el-cheapo erlenmeyer or
something
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MrHomeScientist
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I think just about everyone's experience has been the opposite, actually - little to no corrosion. I've done it 3 times myself now, and no visible
effect on my glassware. I suppose there could be a tiny amount of etching, but if there is it's very slow.
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chemcam
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Finally got a good picture of the etn needle-like crystals!!
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ItalianChemist
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Some nice complexes I have recently made!
-Bis(dibenzoylmethane)Uranyl
-Tris(acetylacetonate)Iron
And some crystals of sodium sulfate!
[Edited on 14-5-2013 by ItalianChemist]
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Bezaleel
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Is the Tris(acetylacetonate)Iron hygroscopic?
Looks nice, with a funny colour somewhere between brown and red.
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Mailinmypocket
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Some 4-aminobenzoic acid (PABA) which was recrystallized from vitamin supplement capsules. Absolutely amazing to watch them grow in solution, like
massive cactus-like pods of crystals. Very easy to separate from the other ingredients in the capsules (magnesium stearate, stearic acid, silica).
Also is a picture of the second batch of crystals that just started to form, sadly when I moved the beaker the layer of crystals floating on the
surface fell down 
 
[Edited on 16-5-2013 by Mailinmypocket]
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Hexavalent
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A nice little crystal of bismuth, it measures ~30x30 mm2 
<img src="https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-snc6/217362_512463482136206_64663793_n.jpg" width="800" />
[Edited on 16-5-2013 by Hexavalent]
<!-- bfesser_edit_tag -->[<a href="u2u.php?action=send&username=bfesser">bfesser</a>: reduced
image width]
[Edited on 7/7/13 by bfesser]
"Success is going from failure to failure without loss of enthusiasm." Winston Churchill
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chemcam
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Thought you guys might enjoy this picture.
It looks as if my watch glass has a big hole in it, but, it's actually crystals of hexamine forming. Photographed from the bottom side.
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Fantasma4500
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K2SO4 crystals from NC synthesis
<img src="http://i.imgur.com/zGZ1xFP.jpg" width="800" />
Na2Cr2O7, i think this picture gets the red almost glowing flouroscent red this gives.. very deep and pretty
<img src="http://i.imgur.com/i7bC4cX.jpg" width="800" />
my favorite above all.. not only does it have incredibly many possibilities for one compound but its also pretty by itself
<img src="http://i.imgur.com/23SjeM3.jpg" width="800" />
another CuCl2 picture, from my mobile phone
<img src="http://i.imgur.com/ZV96Sez.jpg" width="800" />
sorry if the pictures fills 10 times this page :S
<!-- bfesser_edit_tag -->[<a href="u2u.php?action=send&username=bfesser">bfesser</a>: reduced
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[Edited on 7/7/13 by bfesser]
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Finnnicus
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AGH! Resize please!!!!11!!!!11!!!!1
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ItalianChemist
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I don't think it's hygroscopic!
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chemcam
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Bromine Water
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Fantasma4500
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i tried searching around, last times i tried whole SM literally crashed :S
didnt find much of use.. if you care to watch them hold ctrl and scroll back on mousewheel or press ''-''
is there any simple way to resize?
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kristofvagyok
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When you have no access to the NMR at the moment, but it's important to know that the nitration was successful or not.
As it could be seen, it was successful
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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Lambda-Eyde
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| Quote: Originally posted by Antiswat |
i tried searching around, last times i tried whole SM literally crashed :S
didnt find much of use.. if you care to watch them hold ctrl and scroll back on mousewheel or press ''-''
is there any simple way to resize? |
Open them in Paint, press ctrl+W, resize as you wish. Save the picture.
This just in: 95,5 % of the world population lives outside the USA
Please drop by our IRC channel: #sciencemadness @ irc.efnet.org
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