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Author: Subject: Pretty Pictures (1)
Eddygp
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[*] posted on 14-11-2012 at 13:14


Oh, I would love to have some iodine crystals to work with... Anyway.



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Pyro
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[*] posted on 14-11-2012 at 13:15


well then make them!
there are many, very easy ways to make I2. then just heat to 180-200*C with a flask of cold water on top




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Eddygp
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[*] posted on 14-11-2012 at 13:23


Yeah, I'll try.



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Pyro
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[*] posted on 14-11-2012 at 13:32


you could try NO2 and KI. its very effective



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Eddygp
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[*] posted on 14-11-2012 at 13:35


OK, thank you. Atm I need more KI to make this, but I'll try this. The NO2 can be generated by using nitric acid or is there a better way?

[Edited on 14-11-2012 by Eddygp]




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Pyro
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[*] posted on 14-11-2012 at 13:39


lol, yes with nitric acid is abouth the ony way :D best is nitric acid and sugar, nitric acid and any cheap metal works well too, but less effective. read my post about it to get all details.



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Eddygp
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[*] posted on 14-11-2012 at 13:41


Thank you.



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kristofvagyok
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[*] posted on 14-11-2012 at 13:56


Just some new photos:

In old times when they used nitrocellulose in the cinemas there was a lot “accident’, because the film easily ignited, like on this picture:


And a few crystal at the bottom of my breaker under UV, it is a pyrrole polycarboxylic acid amide, looks like a spiders nest(:


Isn't chemistry just simply beautiful?;)




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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mr.crow
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[*] posted on 15-11-2012 at 12:04


I love the precious metal pictures! Too bad I took down my palladium dissolving in aqua regia video, seems to be a popular topic again. Check the very first post in the thread.

Iodine is also very beautiful. I love the weird crystals it makes. You can melt it under H2SO4

To make NO2 you can mix Cu, ammonium nitrate and HCl. Then add aluminum foil to get your crude Cu back for another batch. I haven't done this, so I don't know how vigorous it gets




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[*] posted on 16-11-2012 at 05:04
Chunky Pure Silver Crystals


Large elemental silver crystals grown in my silver cells.

To see the cells that produced these crystals, please see the technochemistry forum - post titled Electrolytic Silver Cells.

kadriver

P1230585.jpg - 443kB
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plante1999
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[*] posted on 16-11-2012 at 07:33


My last batch of mercury from cinnabar.

43.1 gram of mercury.






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elementcollector1
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[*] posted on 16-11-2012 at 08:48


Quote: Originally posted by plante1999  
My last batch of mercury from cinnabar.

43.1 gram of mercury.




Very nice! Maybe you could start a mercury cell for sodium with that much Hg...




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Mailinmypocket
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[*] posted on 16-11-2012 at 09:19


So long as we are on the Hg topic, here is a 50g brass weight floating in a small crucible boat, on mercury of course :) (need to clean the mercury at some point..)


mercury.JPG - 92kB
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[*] posted on 16-11-2012 at 10:10
Calcite Phosphorescence


<a href="http://www.mindat.org/min-859.html" target="_blank">Calcite</a> <img src="../scipics/_ext.png" /> (<a href="http://en.wikipedia.org/wiki/Calcium_carbonate" target="_blank">CaCO<sub>3</sub></a> <img src="../scipics/_wiki.png" />, likely with <a href="http://www.fluomin.org/uk/fiche.php?id=157" target="_blank">Mn<sup>2+</sup></a> <img src="../scipics/_ext.png" /> <a href="http://en.wikipedia.org/wiki/Activator_(phosphor)" target="_blank">activator</a> <img src="../scipics/_wiki.png" />;) digitally photographed under it's own <a href="http://en.wikipedia.org/wiki/Phosphorescence" target="_blank">phosphorescence</a> <img src="../scipics/_wiki.png" /> after brief <a href="http://en.wikipedia.org/wiki/File:Calcite_ShortwaveUV_HAGAM.jpg" target="_blank">excitation</a> <img src="../scipics/_wiki.png" /> by 254nm 4W <a href="http://en.wikipedia.org/wiki/Ultraviolet" target="_blank">UV</a> <img src="../scipics/_wiki.png" /> <a href="http://www.uvp.com/compactlamps.html" target="_blank">lamp</a> <img src="../scipics/_ext.png" />:
<img src="../scipics/user:bfesser/calcite_phosphorescence.jpg" />
Cropped, resized, & corrected contrast slightly to compensate for poor <a href="http://en.wikipedia.org/wiki/Exposure_(photography)" target="_blank">exposure</a> <img src="../scipics/_wiki.png" />&ndash;this is how it looks to the <a href="http://en.wikipedia.org/wiki/Naked_eye" target="_blank">naked eye</a> <img src="../scipics/_wiki.png" />.

<!-- Specimen collected by myself at this <a href="http://en.wikipedia.org/wiki/Cut_(earthmoving)" target="_blank">roadcut</a> <img src="../scipics/_wiki.png" /> in the <a href="http://en.wikipedia.org/wiki/Big_Horn_Mountains" target="_blank">Big Horn Mts., WY</a> <img src="../scipics/_wiki.png" /> (note: <a href="http://en.wikipedia.org/wiki/Hominid" target="_blank">hominid</a> <img src="../scipics/_wiki.png" /> below red streak for scale):<a href="../scipics/user:bfesser/bighorn_dolostone_roadcut.jpg"><img src="../scipics/user:bfesser/bighorn_dolostone_roadcut.jpg" width="800" /></a>
If memory serves, this was a cut through <a href="http://en.wikipedia.org/wiki/Dolostone" target="_blank">dolomitic</a> <img src="../scipics/_wiki.png" /> <a href="http://en.wikipedia.org/wiki/Limestone" target="_blank">limestone</a> <img src="../scipics/_wiki.png" /> of the <a href="http://en.wikipedia.org/wiki/Madison_Group" target="_blank">Madison</a> <img src="../scipics/_wiki.png" /> <a href="http://en.wikipedia.org/wiki/Formation_(stratigraphy)" target="_blank">Fm.</a> <img src="../scipics/_wiki.png" />&ndash; with plenty of <a href="http://en.wikipedia.org/wiki/Druse_(geology)" target="_blank">drusy</a> <img src="../scipics/_wiki.png" /> <a href="http://en.wikipedia.org/wiki/Calcite" target="_blank">calcite</a> <img src="../scipics/_wiki.png" /> <a href="http://en.wikipedia.org/wiki/Vug" target="_blank">vugs</a> <img src="../scipics/_wiki.png" />.

[/end wiki-linking rampage&hellip; apologies]-->

[Edited on 7/27/13 by bfesser]




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Mailinmypocket
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[*] posted on 16-11-2012 at 12:09


Very nice! How long does the phosphorescence last?

[Edited on 16-11-2012 by Mailinmypocket]
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[*] posted on 16-11-2012 at 12:22


It's visible for maybe 10 seconds, but dims rapidly.



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[*] posted on 18-11-2012 at 09:26


Red iron oxide. Actually samples of the many colors of iron oxides! :)
<a href="http://s1273.beta.photobucket.com/user/Joey_Dealbuquerq/library/joeydealbuquerqs" target="_blank"><img src="http://i1273.photobucket.com/albums/y403/Joey_Dealbuquerq/joeydealbuquerqs/sampleironoxides.jpg" border="0" alt="sampleironoxides"/></a>

<a href="http://s1273.beta.photobucket.com/user/Joey_Dealbuquerq/library/" target="_blank"><img src="http://i1273.photobucket.com/albums/y403/Joey_Dealbuquerq/vrio.jpg" border="0" alt="Photobucket"/></a>


[Edited on 11-18-2012 by Poppy]
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Eddygp
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[*] posted on 18-11-2012 at 14:53


Is it all Fe2O3 except that black part, top left part of the picture?



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[*] posted on 18-11-2012 at 15:36


Not exactly. All thats known is that its majorly Fe III.
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Mailinmypocket
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[*] posted on 24-11-2012 at 13:50


Ozone generator... Made with a test tube stuffed with Al foil and a wire coiled around the outside. Connected to an induction coil it makes enough ozone to be uncomfortable...

image.jpg - 58kB
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[*] posted on 25-11-2012 at 04:34


Quote: Originally posted by Mailinmypocket  
Ozone generator... Made with a test tube stuffed with Al foil and a wire coiled around the outside. Connected to an induction coil it makes enough ozone to be uncomfortable...



Very nice :)




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tetrahedron
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[*] posted on 27-11-2012 at 09:49


Quote: Originally posted by Mailinmypocket  
Ozone generator

could you give a more detailed description of your setup? would be worth a try if only for the evil glow =D
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[*] posted on 27-11-2012 at 10:24


Quote: Originally posted by tetrahedron  
Quote: Originally posted by Mailinmypocket  
Ozone generator

could you give a more detailed description of your setup? would be worth a try if only for the evil glow =D


Oh...suuuuuuure......... It was supposed to be proprietary and top secret, but what the hell ;)

It's a rather crude set up I made in about 15 minutes. Anything similar to this set up will work, whether its a test tube, glass plate with foil on either side etc. I used a test tube because it allowed me to coil wire on the outside and fill the inside with foil which has lots of sharp corner and edges which seems to be where the plasma concentrates itself.

The more blue glow you see, the more ozone you are making.


First a metal wire with a hook with roughly the same curve as the test tube bottom was stuck into the tube. Then aluminum foil was jammed in in small pieces and compacted quite a bit with a metal rod. This forms one electrode.
ozone1.JPG - 82kB

Then wire was tightly wound around the tube as shown here. It helps to wind it around the tube, remove the "spring" of wire and tighten it to make it have a smaller diameter and then push it onto the tube to ensure it stays on tightly without needing tape etc.
ozone2.JPG - 86kB

At first I tried to use this small transformer chip that came from a small neon tube display... It produced no glow or ozone. Im not sure what voltage these things operate at but obviously not high enough. The output wires do arc though and give nasty little shocks.
ozone 4.JPG - 93kB

So instead I took out the bigger guns and used a real induction coil (which does give a wicked shock...), this thing easily makes 3 inch long sparks through the air. I'm not entirely sure of the output voltage but the only power supply I have is 6V, 3A. Just connect the output terminals of your HV source to either of the electrodes on the tube (doesn't matter which one) and you have a crude ozone generator.
ozone3.JPG - 120kB

This is just running the coil with alligator clips on a porcelain dish...
acr.JPG - 111kB

PS: If somebody could enlighten me on how to calculate the output voltage of this induction coil it would be appreciated. Im not a big electronics guy and this was just something I bought on eBay due to good pricing.

I plan to place this tube into a larger glass vessel and use an air pump to circulate air through it and have a dilute source of ozone. This test alone gave me a horrid sore throat the next morning... which I am directly blaming having my face too close to the damned thing for so long. Nonetheless.

You can do this too... http://www.bigclive.com/oz.htm


[Edited on 27-11-2012 by Mailinmypocket]
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[*] posted on 27-11-2012 at 14:09


Quote: Originally posted by Mailinmypocket  
It was supposed to be proprietary and top secret, but what the hell ;)

great info. this deserves its own thread. a quick question: since the corona discharge can be intensified by making the electrode more 'spiky' (ideally a needle), is the dielectric really necessary?
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[*] posted on 27-11-2012 at 16:56


http://www.humboldt.edu/scimus/HSC.54-70/CatDesc/InducCoil_C...
http://www.humboldt.edu/scimus/HSC.54-70/Descriptions/Induct...

[Edited on 28-11-2012 by Morgan]
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