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Author: Subject: Pretty Pictures (2)
arkoma
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[*] posted on 25-2-2022 at 22:33


Long wave UV lamp left column, incandescent light right.

The top four are pictures of a rock I got from Violet Sin,and the other set is a piece of dragon's blood resin (incense)

1a.png - 2.1MB 1b.png - 1.6MB

2a.png - 2MB 2b.png - 2.5MB

3a.png - 1.4MB 3b.png - 1.3MB




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Rainwater
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[*] posted on 5-3-2022 at 12:29


youtube video
Dancing sodium.
The sodium metal is reacting with a secondary alcohol in mineral oil.
This reaction produces hydrogen gas, which stick to the small balls of molton sodium, causing them to float.




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Morgan
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[*] posted on 5-3-2022 at 17:04


This was odd how the syringe pauses and restarts well over twenty times, the ping pong ball reactivating the motion. It's just a 1 ml syringe press fit to a 1 ml test test via a piece of pink silicone tubing. I've run it many times and it's extremely resistant to stopping completely, one run over 5 minutes when I finally stopped it.
I bought the syringe for one dollar on eBay from China several years ago and never used it for anything.

Spontaneous Combustion of a Platinum Catalyst Lighter Powering a 1 ml Syringe Motor
https://youtu.be/PZVBjWIK_3A
Another angle
https://youtu.be/tGD_D9NzDVM

[Edited on 6-3-2022 by Morgan]
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Tsjerk
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[*] posted on 6-3-2022 at 02:38


PXL_20220305_174137665.MP.jpg - 3.5MB

Hydroxylamine HCl from approximately 80% methanol.
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[*] posted on 7-3-2022 at 11:59


One of my earlier attempts to make YInMn blue in two different hues
!after heating.jpg - 543kB

A recent big batch of YInMn blue
!bowl of blue.jpg - 795kB
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[*] posted on 7-3-2022 at 12:03


Metal substitution variants of YInMn blue, YAlCuTi greens

yacuti green.jpg - 757kB
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Tsjerk
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[*] posted on 8-3-2022 at 02:42


That blue is intense! I read about it, is the color in the picture representative for the color in real life?
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Brain&Force
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[*] posted on 3-4-2022 at 10:43


Neodymium acetate tetrahydrate, taken with a really nice Leica microscope and a polarizing filter.

Image003.png - 7MB




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[*] posted on 21-4-2022 at 21:26


Gold!!!
F9B0E0F2-6648-49DA-9A41-C04247200CB8.jpeg - 3.6MB



not really, just a leaf of lead iodide :)
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shocked.gif posted on 30-4-2022 at 03:36


I recently worked with a Chlorine compressor (takes gaseous chlorine from a big electrolysis cell and turns it liquid) and the liquid Chlorine looked absolutely stunning when shining a flashlight through the watchglass.





liquid Chlorine.jpg - 4.1MB Chlorine Compressor.jpg - 3.7MB
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DraconicAcid
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[*] posted on 16-5-2022 at 18:46


Crystals of Cu(acac)2, formed from methanol/isopropanol.

CuAcacXtals2.jpg - 102kB




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[*] posted on 4-6-2022 at 18:01


Nickel sulphate made by dissolving nickel nitrate in glacial acetic acid and then dropwise adding the stoichiometric amount of sulphuric acid.

660243EC-274B-4793-9497-2BFDCE3A9533.jpeg - 1.4MB
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DrRadium
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[*] posted on 1-8-2022 at 19:24


Quote: Originally posted by Tsjerk  
That blue is intense! I read about it, is the color in the picture representative for the color in real life?


I hope you're asking about the YInMn blue or I'm about to answer questions no one is asking. Yes, that is pretty close to how it looks in bright light when synthesis is complete. I adjust white balance and if necessary adjust hue a little in order to make it look in photos as it to my eye. It doesn't come out this intense after the first heating, although it is most definitely blue.

If I had a pelleting press I might be able to do it in one run, but without one it requires a few heat-grind-reheat cycles to develop this intensity. I have photos up that show changes over the typical 3 necessary heating cycles as part of an instructable I recently posted on making the pigment. Figured I kept saying that most anyone with a kiln that could reach 1200°C could make it, so I should try to prove it. I wrote it up as a introduction to solid state chemistry. Relevant photos will be in step 5 even if I improve the images used: https://www.instructables.com/Make-YInMn-Blue-Pigment-Using-...

Regardless the process ends up producing pigment that looks very much like the commercial pigment. I'm attaching an image of mine vs official PB86 shot side by side. The isolated PB86 was a byproduct of analysis I did on Golden heavy body acrylic YInMn blue I bought when it was briefly available. I wanted to find out how much pigment they used in their paint (answer about 20-25% of the total weight of paint, 40-45% of the dry weight in case anyone cares) to guide my own paintmaking.

That is probably more than you or anyone else wanted to know.


mine vs, theirs.jpg - 285kB
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DrRadium
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[*] posted on 1-8-2022 at 19:36


Quote: Originally posted by DraconicAcid  
Crystals of Cu(acac)2, formed from methanol/isopropanol.


Are those crystals as flexible as is claimed? Can they really be tied in knots?
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[*] posted on 1-8-2022 at 19:58


Quote: Originally posted by DrRadium  
Quote: Originally posted by DraconicAcid  
Crystals of Cu(acac)2, formed from methanol/isopropanol.


Are those crystals as flexible as is claimed? Can they really be tied in knots?

I did not know they were supposed to be flexible. I'll try, but I have my doubts.




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Tsjerk
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[*] posted on 1-8-2022 at 23:21


Thanks for the answer, I was asking about the YInMn :)
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[*] posted on 23-8-2022 at 21:44


Wet potassium ferric oxalate. I hope it keeps the color after bench drying :)

8090E7C7-794F-47B0-9809-94C3C7B74C16.jpeg - 1.8MB
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[*] posted on 24-8-2022 at 05:34


Keep it in the dark if you don’t want it turning brown!



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[*] posted on 24-8-2022 at 15:40


Hi Texium yep I am aware of this and wait with interest to see how quick this will happen. Once dry it will in a clear vial which of course don't help but I like to see the colors :)
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[*] posted on 24-8-2022 at 17:26


Some that I made and kept in a clear vial turned very brown within a year. The interesting thing though was that I had kept it on a shelf alongside many other vials of compounds, so the side that was facing outward had turned brown, while the other side was still green.



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Gammatron
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[*] posted on 1-9-2022 at 20:42


Quote: Originally posted by kweiny  
I recently worked with a Chlorine compressor (takes gaseous chlorine from a big electrolysis cell and turns it liquid) and the liquid Chlorine looked absolutely stunning when shining a flashlight through the watchglass.


That is insanely beautiful and scary! I work in a plant with a massive ammonia refrigeration system and I'm always slightly nervous being around that stuff.

[Edited on 9-2-2022 by Gammatron]




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[*] posted on 1-9-2022 at 20:51


Some compositions of uranium over a UV light. I dont even remember how I made this.

20190901_201031.jpg - 2.8MB




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[*] posted on 8-9-2022 at 08:45


some photos

IMG-2253.jpg - 4.7MBIMG-2254.jpg - 2.1MB302100572_558434002744268_4544076773131803198_n.jpg - 413kB
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[*] posted on 9-9-2022 at 06:56


some ampoules.

IMG-2216.jpg - 2MBIMG-2215.jpg - 2.7MB
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[*] posted on 9-9-2022 at 07:07


accidentally grown cobalt nitrate crystals.

IMG-2247.jpg - 1.5MB IMG-2245.jpg - 1.8MB
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