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Author: Subject: Pretty Pictures (2)
Mailinmypocket
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[*] posted on 21-12-2013 at 18:14


Awesome! I guess this is considered "break time" at work? ;)
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kristofvagyok
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[*] posted on 21-12-2013 at 18:24


Quote: Originally posted by Mailinmypocket  
Awesome! I guess this is considered "break time" at work? ;)
Yes, something like that. The professor who I worked for previously teaches "chemistry safety" classes where he also teaches from explosives, poisons, ect. The good part is, he demonstrates a lot thing. More: http://labphoto.tumblr.com/tagged/explosive

Another interesting experiment was generating some phosphine.



In the round bottom flask some white phosphorous is melt under a sodium-hydroxide solution and the phosphine/diphosphane what is generated from this mixture is blown out from the gas phase using some argon.

The gas is bubbled through water and when it contacts with air, it ignites due the diphospane content. -do not try this at home(;




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kristofvagyok
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[*] posted on 24-12-2013 at 10:00







I have a blog where I post my pictures from my work: http://labphoto.tumblr.com/
-Pictures from chemistry, check it out(:

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elementcollector1
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[*] posted on 24-12-2013 at 11:58


Quote: Originally posted by kristofvagyok  


Another interesting experiment was generating some phosphine.


In the round bottom flask some white phosphorous is melt under a sodium-hydroxide solution and the phosphine/diphosphane what is generated from this mixture is blown out from the gas phase using some argon.

The gas is bubbled through water and when it contacts with air, it ignites due the diphospane content. -do not try this at home(;


I thought this produced sodium hypophosphite?




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UnintentionalChaos
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[*] posted on 26-12-2013 at 11:21


Quote: Originally posted by elementcollector1  


I thought this produced sodium hypophosphite?


It does. It's a disproportionation. Phosphorus is both oxidized to hypophosphite and reduced to phosphine in a redox-balanced manner.




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Arthur Dent
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[*] posted on 27-12-2013 at 15:37


Copper Acetate synthesis:
Some coiled telephone wire in a test tube filled with glacial Acetic Acid. After 3 days at room temperature, the solution is a nice sharp cyan color. A previous synthesis yielded some very nice 1/2mm dark blue crystals.



Robert




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UnintentionalChaos
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[*] posted on 31-12-2013 at 13:03




My brother is into photography and recently built a diffuser for his flash to use for macro photography. I found him a subject in my jar of 1,3,5-trioxane while I was reorganizing my lab space.

EDIT: attached a large sized version for anyone who wants it.

[Edited on 12-31-13 by UnintentionalChaos]

Attachment: trioxane.7z (1.6MB)
This file has been downloaded 269 times





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Arthur Dent
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[*] posted on 1-1-2014 at 13:30


Quick follow-up to last week's experiment:
You can already see the formation of Copper Acetate crystals on the surface of the copper wire coil



Robert




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[*] posted on 3-1-2014 at 01:24


Quote: Originally posted by Arthur Dent  
Quick follow-up to last week's experiment:
You can already see the formation of Copper Acetate crystals on the surface of the copper wire coil

Robert


looks nice, will try soon and post some macro photos.

... some copper sulphate crystals ( you can find 4 more photos of one big copper sulphate monocrystal here copper sulphate monocrystal)




[Edited on 3-1-2014 by Hegi]

<!-- bfesser_edit_tag -->[<a href="u2u.php?action=send&username=bfesser">bfesser</a>: removed quoted image]

[Edited on 3.1.14 by bfesser]
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kristofvagyok
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[*] posted on 4-1-2014 at 16:16


Fun with fluorescent dyes. Here I used fluorescein-isothiocyanate, rhodamine 6g, aesculin and eosine(:












I have a blog where I post my pictures from my work: http://labphoto.tumblr.com/
-Pictures from chemistry, check it out(:

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[*] posted on 6-1-2014 at 08:08


Quote: Originally posted by kristofvagyok  
Fun with fluorescent dyes. Here I used fluorescein-isothiocyanate, rhodamine 6g, aesculin and eosine(:




beautiful pics, could you please tell me exposure settings? ..
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kristofvagyok
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[*] posted on 6-1-2014 at 15:11


Quote: Originally posted by Hegi  
beautiful pics, could you please tell me exposure settings? ..

ISO: 100
40 mm f/6, 1/2s to 1/8s




I have a blog where I post my pictures from my work: http://labphoto.tumblr.com/
-Pictures from chemistry, check it out(:

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Hegi
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[*] posted on 7-1-2014 at 10:10


Quote: Originally posted by kristofvagyok  
Quote: Originally posted by Hegi  
beautiful pics, could you please tell me exposure settings? ..

ISO: 100
40 mm f/6, 1/2s to 1/8s


thanks.

silver growing on a copper wire..




<center>to see more photos click here silver crystals</center>

[Edited on 7-1-2014 by Hegi]




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Zyklon-A
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[*] posted on 9-1-2014 at 10:28


Recrystallized potassium nitrate.

632.JPG - 167kB




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[*] posted on 11-1-2014 at 06:13


dipotassium bis(oxalato-O,O')-copper(II) complex photo + infrared spectra for dihydrate and tetrahydrate you can find on my blog -> infrared spectra of copper complex






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[*] posted on 11-1-2014 at 20:54


Here is terbium (actually ferroterbium) taking a bath in HCl. The sample I received was contaminated with iron, and I'm attempting to determine the purity of the source material.
The second photo is some magnesium I burned. For the last two New Year's Eves I've burned magnesium. This may be the start of a new tradition.
The third photo is a mixture of red lettuce pigments separated through chromatography. Fun lab. Unfortunately the pigments faded away after a few weeks.

tb in hcl.png - 1006kB

mg burning.png - 808kB chromatography.png - 1.9MB




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[*] posted on 12-1-2014 at 08:40


I know there has already been a post on copper sulfate crystals, but I thought I should add this.
You should open the file to full size, it is much better.

Screen Shot 2014-01-12 at 11.30.19 AM.png - 477kB

Here are the specifications:
Camera: Canon 60D
Focal Length: 55mm
Aperture: f/5.6
Shutter Speed: 1/100 sec
ISO: 100
Flash: None




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[*] posted on 13-1-2014 at 06:31


Maybe not pretty, but I like the look of this dial and tube:

<table><tr><td><a href="http://www.flickr.com/photos/35937732@N02/11920229446/" target="_blank"><img src="http://farm8.staticflickr.com/7297/11920229446_d53f268636_n.jpg" width="320" height="240" alt="CD V-715"></a></td><td><a href="http://www.flickr.com/photos/35937732@N02/11919846204/" target="_blank"><img src="http://farm8.staticflickr.com/7438/11919846204_a47cfc66ec_n.jpg" width="320" height="240" alt="SI-3BG"></a></td></tr><tr><td align="center">CD V-715 Ion Chamber Survey Meter</td><td align="center">SI-3BG Geiger–Müller Tube</td></tr></table>




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[*] posted on 13-1-2014 at 11:51


Quote: Originally posted by bfesser  
Maybe not pretty, but I like the look of this dial and tube:


I don´t even know what is the first device used for.. o.O looks pretty! ;)

<!-- bfesser_edit_tag -->[<a href="u2u.php?action=send&username=bfesser">bfesser</a>: removed quoted images]

[Edited on 24.1.14 by bfesser]




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[*] posted on 13-1-2014 at 13:24


My phenol usually arrives as small loose crystals but this time the supplier poured it liquid into the bottle and I was pleased to see a shiny solid 250g mass when opened :) never seen large phenol crystals in person

Pic is not as nice as UC's previous phenol though


image.jpg - 66kB

[Edited on 13-1-2014 by Mailinmypocket]
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[*] posted on 13-1-2014 at 16:28



the philosopher's stone :D

by unknown


http://www.weather.com/news/science/nikon-small-world-contes...

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[*] posted on 13-1-2014 at 18:40


Phase separation of methanol/water azeotrope (top) and toluene/dichloromethane mix.

IMG_1049.jpg - 17kB




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[*] posted on 17-1-2014 at 13:10


Not the best shot ever, but these hydroxylammonium chloride crystals won't cooperate with my camera. I made them in a few rather annoying steps from sodium nitrite. I'd be more annoyed if there wasn't 400mmol in the picture because that should be plenty for my needs.

hydroxylamineHClsharpen.jpg - 144kB

[Edited on 1-17-14 by UnintentionalChaos]




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[*] posted on 19-1-2014 at 07:51


Gold refined from a chain somebody was throwing away because it was ugly... Managed to get 2.85g from the 14 carat item. So got about 125$ worth of gold for free :)

image.jpg - 66kB
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[*] posted on 21-1-2014 at 08:17


Mailinmypocket: Nice! I'd be interested to hear about your procedure; sounds like a fun experiment. What's the (ballpark) purity of your recovered gold?
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