| Pages:
1
..
72
73
74
75
76 |
Gammatron
Hazard to Others
Posts: 125
Registered: 30-8-2022
Location: Abandoned Uranium Mines
Member Is Offline
|
|
That's one of the coolest crystals I've ever seen
|
|
|
vano
National Hazard
Posts: 661
Registered: 22-3-2019
Location: Georgia
Member Is Offline
|
|
Thank you!
|
|
|
vano
National Hazard
Posts: 661
Registered: 22-3-2019
Location: Georgia
Member Is Offline
|
|
Uranium metal
  
|
|
|
Gammatron
Hazard to Others
Posts: 125
Registered: 30-8-2022
Location: Abandoned Uranium Mines
Member Is Offline
|
|
Burning graphite with pure O2. Notice the little tails coming off the sparks
|
|
|
Gammatron
Hazard to Others
Posts: 125
Registered: 30-8-2022
Location: Abandoned Uranium Mines
Member Is Offline
|
|
UO2(NO3)2 in tributyl phosphate / dilute HNO3
|
|
|
vano
National Hazard
Posts: 661
Registered: 22-3-2019
Location: Georgia
Member Is Offline
|
|
Some inorganics: Cesium, Antimony, Bismuth, Samarium, Cerium, Copper ... compounds.
|
|
|
j_sum1
Administrator
Posts: 6218
Registered: 4-10-2014
Location: Unmoved
Member Is Offline
Mood: Organised
|
|
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.
|
|
|
Texium
Administrator
Posts: 4508
Registered: 11-1-2014
Location: Salt Lake City
Member Is Offline
Mood: PhD candidate!
|
|
Nice! Are the lower ones backfilled with nitrogen or argon? If not, I’d worry the colors won’t last for long.
|
|
|
j_sum1
Administrator
Posts: 6218
Registered: 4-10-2014
Location: Unmoved
Member Is Offline
Mood: Organised
|
|
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]
|
|
|
Bedlasky
International Hazard
Posts: 1219
Registered: 15-4-2019
Location: Period 5, group 6
Member Is Offline
Mood: Volatile
|
|
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
Hazard to Others
Posts: 125
Registered: 30-8-2022
Location: Abandoned Uranium Mines
Member Is Offline
|
|
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.
|
|
|
CharlieA
National Hazard
Posts: 645
Registered: 11-8-2015
Location: Missouri, USA
Member Is Offline
Mood: No Mood
|
|
This is the "perfect pairing."
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
International Hazard
Posts: 1236
Registered: 29-1-2016
Member Is Offline
Mood: No Mood
|
|
Did you post after drinking the bottle ? 
To drink "Atom" wine I would have gone for these glasses:
[Edited on 28-9-2022 by Herr Haber]
The spirit of adventure was upon me. Having nitric acid and copper, I had only to learn what the words 'act upon' meant. - Ira Remsen
|
|
|
Morgan
International Hazard
Posts: 1660
Registered: 28-12-2010
Member Is Offline
Mood: No Mood
|
|
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
National Hazard
Posts: 645
Registered: 11-8-2015
Location: Missouri, USA
Member Is Offline
Mood: No Mood
|
|
@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
International Hazard
Posts: 1236
Registered: 29-1-2016
Member Is Offline
Mood: No Mood
|
|
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
The spirit of adventure was upon me. Having nitric acid and copper, I had only to learn what the words 'act upon' meant. - Ira Remsen
|
|
|
vano
National Hazard
Posts: 661
Registered: 22-3-2019
Location: Georgia
Member Is Offline
|
|
CrO3 accident at homelab
|
|
|
Texium
Administrator
Posts: 4508
Registered: 11-1-2014
Location: Salt Lake City
Member Is Offline
Mood: PhD candidate!
|
|
Clusters of 1-bromo-2-methyl-4-nitronaphthalene crystals coming out of solution in a column chromatography fraction.
|
|
|
violet sin
International Hazard
Posts: 1475
Registered: 2-9-2012
Location: Daydreaming of uraninite...
Member Is Offline
Mood: Good
|
|
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.
 
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
Harmless
Posts: 49
Registered: 22-9-2022
Location: France
Member Is Offline
Mood: Lazy
|
|
Acetaminophen cristals
|
|
|
Bedlasky
International Hazard
Posts: 1219
Registered: 15-4-2019
Location: Period 5, group 6
Member Is Offline
Mood: Volatile
|
|
I found in mountains place with many red granites. They look really nice.
[Edited on 17-10-2022 by Bedlasky]
|
|
|
Rainwater
National Hazard
Posts: 799
Registered: 22-12-2021
Member Is Offline
Mood: indisposition to activity
|
|
Corrosion of a copper pipe when cathodic protection is connected incorrectly. 3 days old
"You can't do that" - challenge accepted
|
|
|
Gammatron
Hazard to Others
Posts: 125
Registered: 30-8-2022
Location: Abandoned Uranium Mines
Member Is Offline
|
|
Carbonized fossil wood mineralized with calcite with uranium and vanadium crusts (gummite & carnotite) -Late Triassic -Moss Back Conglomerate
|
|
|
DraconicAcid
International Hazard
Posts: 4278
Registered: 1-2-2013
Location: The tiniest college campus ever....
Member Is Offline
Mood: Semi-victorious.
|
|
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.
[Edited on 28-11-2022 by DraconicAcid]
Please remember: "Filtrate" is not a verb.
Write up your lab reports the way your instructor wants them, not the way your ex-instructor wants them.
|
|
|
Rainwater
National Hazard
Posts: 799
Registered: 22-12-2021
Member Is Offline
Mood: indisposition to activity
|
|
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"
  
"You can't do that" - challenge accepted
|
|
|
| Pages:
1
..
72
73
74
75
76 |
![[*]](images/xpblue/default_icon.gif){kind=icon}
