Sciencemadness Discussion Board

Pretty Pictures (2)

 Pages:  1  ..  17    19

arkoma - 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

Rainwater - 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.

Morgan - 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]

Tsjerk - 6-3-2022 at 02:38

PXL_20220305_174137665.MP.jpg - 3.5MB

Hydroxylamine HCl from approximately 80% methanol.

DrRadium - 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

DrRadium - 7-3-2022 at 12:03

Metal substitution variants of YInMn blue, YAlCuTi greens

yacuti green.jpg - 757kB

Tsjerk - 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?

Brain&Force - 3-4-2022 at 10:43

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

Image003.png - 7MB

Lion850 - 21-4-2022 at 21:26

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



not really, just a leaf of lead iodide :)

kweiny - 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

DraconicAcid - 16-5-2022 at 18:46

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

CuAcacXtals2.jpg - 102kB

Lion850 - 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

DrRadium - 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

DrRadium - 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?

DraconicAcid - 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.

Tsjerk - 1-8-2022 at 23:21

Thanks for the answer, I was asking about the YInMn :)

Lion850 - 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

Texium - 24-8-2022 at 05:34

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

Lion850 - 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 :)

Texium - 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.

Gammatron - 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]

Gammatron - 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

vano - 8-9-2022 at 08:45

some photos

IMG-2253.jpg - 4.7MBIMG-2254.jpg - 2.1MB302100572_558434002744268_4544076773131803198_n.jpg - 413kB

vano - 9-9-2022 at 06:56

some ampoules.

IMG-2216.jpg - 2MBIMG-2215.jpg - 2.7MB

vano - 9-9-2022 at 07:07

accidentally grown cobalt nitrate crystals.

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

Gammatron - 9-9-2022 at 12:53

That's one of the coolest crystals I've ever seen

vano - 9-9-2022 at 13:19

Thank you!

vano - 12-9-2022 at 09:15

Uranium metal

IMG-2302.jpg - 3MB IMG-2303.jpg - 1MB IMG-2300.jpg - 1.3MB

Gammatron - 12-9-2022 at 13:36

Burning graphite with pure O2. Notice the little tails coming off the sparks

20190629_005149.jpg - 1.4MB

Gammatron - 20-9-2022 at 08:58

UO2(NO3)2 in tributyl phosphate / dilute HNO3

Screenshot_20220920_125614.jpg - 651kB

vano - 22-9-2022 at 22:55

Some inorganics: Cesium, Antimony, Bismuth, Samarium, Cerium, Copper ... compounds.

IMG-2385.jpg - 3.8MB

j_sum1 - 23-9-2022 at 18:32

Oxidation states of vanadium:
+5, +4, +3, +2

I am not terribly happy with the green, but it is still rather nice to have them all on display.

2022-09-24 12.27.09.jpg - 2.5MB

Texium - 23-9-2022 at 18:36

Nice! Are the lower ones backfilled with nitrogen or argon? If not, I’d worry the colors won’t last for long.

j_sum1 - 23-9-2022 at 18:48

Quote: Originally posted by Texium  
Nice! Are the lower ones backfilled with nitrogen or argon? If not, I’d worry the colors won’t last for long.

The +2 has a little sliver of zinc still in there. It seems to be stable. I have a second without the zinc to compare with.
The +3 was more tricky to produce. I found that it would oxidise back to the blue within seconds after removing the zinc strip that I was using to reduce it. I ended up doing the reduction in the ampoule and sealing it as soon as it looked right. There is a tiny piece of zinc in there too which should mitigate against the trapped oxygen. That one was a balancing act. And I definitely did not capture the best shade of green.

[edit]
You were right to be suspicious, Texium.
This photo shows the two ampoules a couple of hours later: one with a zinc strip and one without.

[Edited on 24-9-2022 by j_sum1]

2022-09-24 14.13.01.jpg - 1.8MB

Bedlasky - 26-9-2022 at 12:54

It is possible that V2+ react with water. But I am not sure about it. I did recently some titanometric titrations and I also want to try chromometry, but CrCl2 solution decompose in 24 hours even under inert atmosphere. But TiCl3 is very stable under inert atmosphere.

Btw. you can make V(III) fairly quickly just by mixing V(II) with V(V) in stoichiometric amount.

[Edited on 26-9-2022 by Bedlasky]

Gammatron - 26-9-2022 at 15:07

K2UO2(SO4)2
The fluorescence is incredible in person, unfortunately shining uv directly on it floods the picture with purple light so I had to shine it to the side.

20220926_131415.jpg - 1.1MB

CharlieA - 28-9-2022 at 08:02

This is the "perfect pairing."

PerfectPairing.jpg - 2.6MB



I don't know why this pic is inverted. :(

[Edited on 9-28-2022 by CharlieA]

[Edited on 9-28-2022 by CharlieA]

Herr Haber - 28-9-2022 at 09:52

Quote: Originally posted by CharlieA  


I don't know why this pic is inverted. :(

[Edited on 9-28-2022 by CharlieA]


Did you post after drinking the bottle ? :)

To drink "Atom" wine I would have gone for these glasses:


IMG_3654.JPG - 55kB

[Edited on 28-9-2022 by Herr Haber]

Morgan - 28-9-2022 at 10:32

I found this South African Jam Jar wine that paired nicely with a jam jar jet effect.

Western Cape, South Africa - Crafted in a lighter style this Shiraz is a fresh, fruity, sweet wine that displays aromas and flavors of ripe blueberries, blackberries and raspberries with dark chocolate undertones. Refreshing and approachable with a perfect balance.
https://youtu.be/LPe29o0OUSw
https://www.jamjarwines.com/

CharlieA - 28-9-2022 at 17:21

@Herr Haber: When I took the pic, the bottle was opened. ...but that was before dinner....it is no longer unopened. Are those goblets the ones that are colored with U salts? I seem to remember something about that. But I just might look for a bottle of that wine locally. Thx for the video and link'


@Morgan: I do like Shiraz, but I prefer a dry rather than a sweet red. Thx for the links. I may look for a bottle locally.

[Edited on 9-29-2022 by CharlieA]

Herr Haber - 29-9-2022 at 09:29

Quote: Originally posted by CharlieA  
Are those goblets the ones that are colored with U salts?
[Edited on 9-29-2022 by CharlieA]


Yes. You can easily find uranium glass also called vaseline or depression glass on eBay.
NileRed made a video on how to make such glass.
https://youtu.be/RGw6fXprV9U

vano - 30-9-2022 at 09:55

CrO3 accident at homelab

FD3539C6-C419-4DB2-BEA6-41C5941753BB.JPEG - 1.9MB

Texium - 3-10-2022 at 18:17

Clusters of 1-bromo-2-methyl-4-nitronaphthalene crystals coming out of solution in a column chromatography fraction.

B4757462-0706-46C9-B24A-BBB769A42A44.jpeg - 2.4MB

violet sin - 3-10-2022 at 21:20

Went back over to the coast and cleaned out my poor Toyota pickup. I haven't been hanging drywall over there for 3-4 years. One of the things discovered was an plastic pan with some solution in it and what sounded like glass rolling around. I assume it chrome alum? Nice lavender purple color. There was a small pile of agate's I found on the beaches, and in the glovebox I found a pile of carbonized ground cherry skeletons probably already pictured in the bread pyrolysis thread.

16648598120127015280311015512446.jpg - 2.4MB

16648599608562128009437780268322.jpg - 2.4MB 16648600806991070423889540310063.jpg - 2.1MB

It sure used to get boring over there away from the fam, and my scienceing budget was dollar store or thrift store max, lol. See if I can't clean up a couple crystals and get a decent pic without the yellow solution adhering.

andyloris - 11-10-2022 at 02:41

Acetaminophen cristals

IMG_7826.jpg - 1.1MB

Bedlasky - 16-10-2022 at 16:24

I found in mountains place with many red granites. They look really nice.

IMG_20221017_022523.jpg - 3.1MB

DSC05916x.JPG - 310kB

[Edited on 17-10-2022 by Bedlasky]

Rainwater - 17-10-2022 at 05:13

20221017_090308.jpg - 1.2MB
Corrosion of a copper pipe when cathodic protection is connected incorrectly. 3 days old

Gammatron - 17-10-2022 at 12:15

Carbonized fossil wood mineralized with calcite with uranium and vanadium crusts (gummite & carnotite) -Late Triassic -Moss Back Conglomerate

Screenshot_20221017_092250.jpg - 703kB

DraconicAcid - 28-11-2022 at 11:46

tris(bipy)nickel(II) sulphate


surprisingly soluble in organic solvents- these were grown by vapour diffusion of acetone into a methanolic solution. I'm going to try again, starting with a more dilute solution, so there isn't the sudden rush of crappy crystals with better ones growing on top.
NibipySO4.jpg - 962kB

[Edited on 28-11-2022 by DraconicAcid]

Rainwater - 28-11-2022 at 13:20

So a while back I posted this shortly after
I rigged up a drying tube to diaphragm pump, pid heater and insulated bucket.
Every hour 10ml of dry air is pumped in and 10ml of moist air is pumped out. Keep the temperature at 28c, Set it in the corner and completely forgot about it.
Inside was a beaker, containing a saturated solution of KCl obtained from multiple recrystallizations of "Muriate of Potash 0-0-60"



20221128_152637.jpg - 1.1MB20221128_152702.jpg - 2.2MB20221128_152713.jpg - 1.5MB

DraconicAcid - 5-12-2022 at 16:05

Another attempt at getting nice crystals of Ni(bipy)3SO4. The dark blue(?) crystals are presumable nickel with 2 bipy and either water or sulphate as the other ligands.

Nibipy2.jpg - 2.4MB

arkoma - 9-1-2023 at 15:52

First go at Picric Acid.

20230109_174710.jpg - 514kB

20230109_174802.jpg - 482kB

greenlight - 10-1-2023 at 10:52

Quote: Originally posted by arkoma  
First go at Picric Acid.





Beautiful canary yellow colour indeed, love it. :)

Has a nasty habit of staining everything though haha.

Had a wet batch out drying on minimal paper towels when I was a teenager in my closet and it soaked through. The carpet is still a pretty yellow all these years later.

Pok - 29-1-2023 at 05:20

tin metal beads.jpg - 1.6MB

Tin beads, created during an attempt to melt some tin.

arkoma - 30-1-2023 at 02:01

Quote: Originally posted by greenlight  


Beautiful canary yellow colour indeed, love it. :)

Has a nasty habit of staining everything though haha.


somehow i managed to not get yellow stains on my skin, but my god, glass with no discernible residue on it shed yellow like mad when being (re)washed.

Raid - 13-2-2023 at 06:27

here are some photos from under the microscope

unnamed (2).jpg - 276kBunnamed (3).jpg - 315kBunnamed (4).jpg - 488kBunnamed (5).jpg - 200kBunnamed (6).jpg - 465kBunnamed (7).jpg - 377kBunnamed (9).jpg - 364kB

Herr Haber - 13-2-2023 at 08:40

Quote: Originally posted by arkoma  

somehow i managed to not get yellow stains on my skin, but my god, glass with no discernible residue on it shed yellow like mad when being (re)washed.


You dont necessarily see the stains on your skin with normal light.
Try a black light for some fun :)

CharlieA - 13-2-2023 at 13:47

Quote: Originally posted by Raid  
here are some photos from under the microscope


Nice photos!
How did you prepare your slides?
Did you use a stereo microcope?
What magnification(s) did you us?

Sorry for all the questions, but I have been thinking about similar observations for some time.

Charlie

Raid - 16-2-2023 at 07:38

I just kinda plopped the crystals on my microscope slide and held my camera up to the observation area and took a picture.
I used between 40x zoom and 100x

[Edited on 16-2-2023 by Raid]

arkoma - 16-2-2023 at 09:55

It's not difficult to clobber up a "stand-off" from your objective lens with a bit of paper tube and tape. You can get sharp photos easier if all you have to do is lay your camera on top of a tube cut to focal length.

Try it on a telescope with self timer (no shake from button push):



104_0018.JPG - 942kB

that was taken with a cheap kodak with NO zoom, but i had it taped to this: ;)



104_0039.JPG - 906kB

Raid - 16-2-2023 at 15:25

Nice telescope :)

Amos - 23-2-2023 at 21:55

Homemade crystals of manganese(II) sulfate, purified from cheap pottery MnCO3 that gave a foul reddish-black solution on acidification. Very rewarding to make!

IMG_2234.jpg - 910kB IMG_3051.jpg - 862kB

[Edited on 2-24-2023 by Amos]

DraconicAcid - 23-3-2023 at 22:38

I happened to have some dry ice, so I made some dinitrogen trioxide to show my students.

BlueNoNoo.jpg - 18kB

Sir_Gawain - 31-3-2023 at 08:30

Picric Acid Recrystallization

IMG_6247.JPG - 1.3MB

The only yellow chemistry I'll do.:)

Tsjerk - 12-4-2023 at 10:30



grey.php.jpg - 15kB

Rainwater - 12-4-2023 at 14:22

Sunrize over the mountain, pre daguerreotype era

DraconicAcid - 14-4-2023 at 20:49

Neodymium sulphate octahydrate. I was rather surprised to see these- they grew from the filtrate after collecting and washing the same substance with near-boiling water.

NeodymiumSulphate.jpg - 253kB

Unknown mineral

Rainwater - 24-4-2023 at 09:38

Found this deep purple colored layer (2mm thick) in south eastern united states.
Adjacent layers are sandstone quartz mixture this lots of pyrite


20230424_133123_01.jpg - 2.8MB
Daylight
20230424_201504.jpg - 1.5MB
UV light

[Edited on 25-4-2023 by Rainwater]

Rainwater - 5-5-2023 at 06:28

There be gold in them industrial controllers
20230505_102458.jpg - 2.6MB
Got me about 1/2 a beers worth here

xxxhibition - 5-6-2023 at 06:53

Nice green Crystals.
This is CuCl2•XH2O
the dihydrate :)

IMG-20230605-WA0001.jpg - 413kB

teodor - 30-6-2023 at 06:03

I turned 47 today. I was more busy last year helping people from Ukraine, but still had some time to synthesize some new compounds which itself made a separate topic in my celebration which I want to share with my SM friends :)

20230630_155117.jpg - 3.1MB


Bedlasky - 30-6-2023 at 12:29

Happy birthday, Teodor!

Texium - 30-6-2023 at 14:00

Quote: Originally posted by xxxhibition  
Nice green Crystals.
This is CuCl2•XH2O
the dihydrate :)

Based on the color, it looks like there is still a significant amount of HCl hanging on. Tetrachlorocuprate gives it that lime green color. CuCl2 • 2 H2O is more of an aqua blue-green color when pure. Recrystallizing a couple times from water should correct that.

Also, happy birthday teodor!

violet sin - 30-6-2023 at 14:33

Happy birthday Teodor! You're just about a year n half my senior, chronologically. I hope you have/had a great time. Looks a fair bit cooler there than it is here this glorious day. Supposed to hit 102°F today and 108°F tomorrow. Glad you got some sciencing time, always a treat to get to paly

teodor - 1-7-2023 at 02:46

Thank you, Bedlasky and Violet Sin. On the background of my picture is a frame of my home observatory by the way. I am also "staring at stars from the back yard" when the weather permits. Yes, 102F is pretty common for Ukrainian summer for last 20 years or so (the global warming), and now I live in a different clime.

I promise to upload some new pretty chemical pictures soon :)

SnailsAttack - 2-7-2023 at 00:18

Quote: Originally posted by DraconicAcid  
Neodymium sulphate octahydrate. I was rather surprised to see these- they grew from the filtrate after collecting and washing the same substance with near-boiling water.
What a nice pink color. Maybe I ought to do something with my neodymium magnets that got smashed together and cracked.

Thyzoid - 6-7-2023 at 05:01

This may look like a normal extraction but do not be deceived by its look. You are looking at a 6L RBF and a 2L extractor. An absolute unit of an extractor. The first run will be the extraction of harmala alkaloids from 1Kg of seeds (legal here) later on also the extraction of piperine from a lot of black pepper and also the extraction of quinine from 2-5kg of china bark.

IMG_6375.jpg - 751kB

Sulaiman - 6-7-2023 at 05:38

Nice :)

From reading only: organic alkaloids and piperine are used as 'green' corrosion inhibitors for copper.
... No idea if of any significance wrt copper wire at bottom of extractor.

Thyzoid - 8-7-2023 at 00:01

This is what the harmala alkaloid extraction looks like under UV light. The solvent is isopropanol.

IMG_6434.JPG - 1.8MB IMG_6431.JPG - 1.2MB

New stuff

Thyzoid - 17-7-2023 at 03:56

Got some new chems and can finally start the cubane preparation because of the benzene. On the nitropropene I´ll try to turn the double bond into a cyclopropane ring. May also brominate the double bond. Only got it because of the want to smell it once lol. I have no interest of using it for something illegal whatsoever.

IMG_6629.JPG - 1.6MB

Pretty

Pumukli - 17-7-2023 at 10:11



pnpno.jpg - 84kB

P-Nitro-Pyridine-N-Oxide crystals (are they? :D ) on the tip of a glass rod. (They are much smaller IRL, the rod is around 5 mm diameter in reality.)

Rainwater - 14-10-2023 at 09:17

Todays partial eclipse, as seen from south eastern, north american continent (Georgia, USA) through a welding mask

Bad with good refractions
20231014_130215.jpg - 2.9MB

Better view
20231014_130209.jpg - 1.1MB

Video
https://youtu.be/Cld1lbYyfEo?si=NDNfLPLh6C3bfFfe

DraconicAcid - 14-10-2023 at 09:21

My view of the eclipse was some brightish clouds on the horizon.

andyloris - 14-10-2023 at 09:49

@Pumukli, where did you find your procedure for the synthesis of 4-Nitropyridine-N-oxide ?
I can recall searching a lot for it a while ago but couldn't find one.

[Edited on 14-10-2023 by andyloris]

Texium - 14-10-2023 at 10:20

Had a very good view of the eclipse here in SLC! I took them both with my phone camera, the first one through my eclipse glasses, and the second one without a filter.

IMG_0298 copy.png - 449kB IMG_0306 copy.png - 7.1MB

Fery - 14-10-2023 at 12:24

Quote: Originally posted by andyloris  
@Pumukli, where did you find your procedure for the synthesis of 4-Nitropyridine-N-oxide ?
I can recall searching a lot for it a while ago but couldn't find one.

https://www.oc-praktikum.de/nop/en/instructions/pdf/1004_en....
https://onlinelibrary.wiley.com/doi/abs/10.1002/recl.1951070...
https://sci-hub.ee/10.1002/recl.19510700704

Attachment: 1004_en.pdf (80kB)
This file has been downloaded 78 times

Attachment: recl.19510700704.pdf (497kB)
This file has been downloaded 84 times

andyloris - 15-10-2023 at 10:09

Thanks !
Now I just need to make pyridine...

Fery - 15-10-2023 at 19:01

By the pyridine cheaply.
https://shop.es-drei.de/heterocyclen/163/pyridin-min.-99-5-z...
https://www.laboratoriumdiscounter.nl/en/pyridine-995.html

Brain&Force - 29-10-2023 at 12:24

I was lucky enough to receive a microscope, so here are some crystals of dysprosium nicotinate (which reliably forms x-ray quality crystals through uncontrolled evaporation on a slide – how convenient!).

dy nicotinate.jpg - 507kB

Texium - 30-10-2023 at 09:33

Nice! Is nicotinate a particularly good anion for lanthanides in general?

Also, have you grown crystals of every lanthanide yet (sans promethium)?

Brain&Force - 2-11-2023 at 19:40

I'm still working on getting the crystals to be large, but the nicotinate seems to be the most promising salt I've worked with. I might try the benzoate next.

I've made the acetates of all stable lanthanides except lanthanum and lutetium, but neodymium acetate crystals are somewhat unstable and prone to desolvation, and cerium/praseodymium acetates don't seem to form crystals easily.

j_sum1 - 3-11-2023 at 02:49

So good to see you, B&F.

Rainwater - 3-11-2023 at 10:22

Cathodic protection wired wrong or electrolysis in the workplace.
You decide
https://youtube.com/shorts/tjeJzt_BwPM?si=hhnMTQiFyyOKChmV
Screenshot_20231103_141829_Gallery.jpg - 424kB
26 day old SCH40 galvanized rigid conduit

Sir_Gawain - 3-1-2024 at 10:39

Frozen dioxane. Might need to get a heater for the lab.

IMG_0246.jpeg - 1.9MB

DraconicAcid - 10-1-2024 at 16:06

I've tried several times to make both K2CuCl4*2H2O (blue crystals) and KCuCl3 (deep red crystals). I've managed this...

PXL_20240110_194137528.jpg - 1.7MB

greenlight - 8-2-2024 at 04:01

Some Cesium nitrate precipitating crystals out of solution as the water evaporates slowly.

[Edited on 8-2-2024 by greenlight]

Screenshot_20240208_195825_Gallery.jpg - 1.6MB

Bedlasky - 8-2-2024 at 11:46

PbCl2 crystals

IMG_20240208_204420.jpg - 2MB

Na2[BiCl5] crystals

IMG_20240208_204449.jpg - 2.9MB

 Pages:  1  ..  17    19