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crystal grower
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Quote: Originally posted by Velzee  |
He's back! Welcome back!
Yes, as DraconicAcid said, I made an attempt at potassium ferrioxalate, but I forgot to account for the stoichometry when I replace KOH with K2CO3,
thus excess contaminates remained. |
Lol thanks Velzee  .
Actually I still check sm from time to time. Summer holidays are just too busy .
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fluorescence
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Hopefully some Vanadium(II)
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Arg0nAddict
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This was an experiment for storing sodium short term without an oxide layer and to get pictures for ebay ads.
30 grams of Sodium was made molten inside a bath of mineral oil, I believe paraffin oil, and then injected into room temperature, 70°F (~21°C), oil
using an all glass 10mL syringe.
I have been trying several different techniques to get uniform sizing and the middle section, where it looks the best, is what I described above. The
bottom 1/4 of the vial I used cold oil 50°F (10°C). The top 1/4 of the jar was hot oil, 100°F (~38°C).
**SAFETY NOTES**
I learned the hard way that molten sodium will fall out of the syringe as soon as it points just 1° below 180° luckily it bounced off my finger and
didn't do more damage. In the gallery you'll see the Pea size blister on the tip of my pinky finger.
Clean sodium catches fire much easier, especially when shiny and molten.
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Beaded Sodium Gallery ~ 8 more pics
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Beaded Sodium Gallery ~ 8 more pics
[Edited on 2-9-2016 by Arg0nAddict]
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BobD1001
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Absolutely beautiful Arg0nAddict!
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j_sum1
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Gorgeous.
I think the variable size adds to the aesthetic. And probably makes it more usable -- if you are using it for more than just a display.
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Arg0nAddict
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https://www.youtube.com/watch?v=iRTDf4m6V0k
Not a pretty photo but it is my adaptation of the dancing sodium reaction. The music is important as I think you all will enjoy it.
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Arg0nAddict
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Here's some more sodium, which is best?
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crystal grower
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Third one IMO, but they are all pretty pictures .
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Velzee
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I made this one as a birthday gift for a friend; it is a two week old potassium ferricyanide crystal.
 
Check out the ScienceMadness Wiki: http://www.sciencemadness.org/smwiki/index.php/Main_Page
"All truth passes through three stages. First, it is ridiculed. Second, it is violently opposed. Third, it is accepted as being self-evident."
—Arthur Schopenhauer
"¡Vivá Cristo Rey!"
—Saint José Sánchez del Río |
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arkoma
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beautiful!
иди нахуй, путин
| Quote: | “Travel is fatal to prejudice, bigotry, and narrow-mindedness, and many of our people need it sorely on these accounts. Broad, wholesome, charitable
views of men and things cannot be acquired by vegetating in one little corner of the earth all one’s lifetime.”
and..
“The gentle reader will never, never know what a consummate ass he can become until he goes abroad.”
Mark Twain, The Innocents Abroad |
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violet sin
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That is mighty impressive, nice! What an awesome gift.
[Edited on 11-9-2016 by violet sin]
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Metacelsus
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How did you make it? Slow evaporation with a seed crystal, or something like that?
As below, so above.
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Fidelmios
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Yeah my current potassium ferricyanide crystals aren't coming out yet. It's like they're neither growing or dissolving.
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Velzee
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Yep!
@Fidelmios how long have you had the solution left out?
Check out the ScienceMadness Wiki: http://www.sciencemadness.org/smwiki/index.php/Main_Page
"All truth passes through three stages. First, it is ridiculed. Second, it is violently opposed. Third, it is accepted as being self-evident."
—Arthur Schopenhauer
"¡Vivá Cristo Rey!"
—Saint José Sánchez del Río |
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fluorescence
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So we took a thermal image of a cup of coffee and saw these darker spots which always move in thise kind of net shapes on the surface.
I changed the colors so it becomes easier to see and added some temperatures so you can see the difference. For some reason these spots are around
3-4°C cooler than the rest of the coffee.
I think it might be the oils which are hydrophobic and collect on the surface but as oils dont evaporate that easily the stay longer on the surface
and can therefore cool off a bit which makes these spots colder. At first I thought it was only a minor temperature difference but when I looked into
the data I saw that there is a surprising temperature difference. Any idea ? I waited till the surface was perfectly still and most of the boiling and
fuming was over before I took the image.
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wg48
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| Quote: Originally posted by fluorescence | So we took a thermal image of a cup of coffee and saw these darker spots which always move in thise kind of net shapes on the surface.
I changed the colors so it becomes easier to see and added some temperatures so you can see the difference. For some reason these spots are around
3-4°C cooler than the rest of the coffee.
I think it might be the oils which are hydrophobic and collect on the surface but as oils dont evaporate that easily the stay longer on the surface
and can therefore cool off a bit which makes these spots colder. At first I thought it was only a minor temperature difference but when I looked into
the data I saw that there is a surprising temperature difference. Any idea ? I waited till the surface was perfectly still and most of the boiling and
fuming was over before I took the image.
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They look like the tops of convection cells.
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arkoma
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| Quote: Originally posted by mayko | These lovely blue mushrooms pop up around this time of year. Turns out, they also bruise a lovely green color!
Incidentally, does anyone have protips on preserving mushrooms? I tried putting this one in a closed container with some CaCl2 but it just got slimy
and grungy...
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It's a breakdown product of the psilocybin. Sun dry them, then freeze. (Have experience this area; they're worth $240/OZ in California. Idiots)
иди нахуй, путин
| Quote: | “Travel is fatal to prejudice, bigotry, and narrow-mindedness, and many of our people need it sorely on these accounts. Broad, wholesome, charitable
views of men and things cannot be acquired by vegetating in one little corner of the earth all one’s lifetime.”
and..
“The gentle reader will never, never know what a consummate ass he can become until he goes abroad.”
Mark Twain, The Innocents Abroad |
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Tsjerk
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Maybe you can repeat the experiment after adding a drop of soap? That could test your hypothesis.
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mayko
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| Quote: Originally posted by arkoma | | Quote: Originally posted by mayko | These lovely blue mushrooms pop up around this time of year. Turns out, they also bruise a lovely green color!
Incidentally, does anyone have protips on preserving mushrooms? I tried putting this one in a closed container with some CaCl2 but it just got slimy
and grungy...
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It's a breakdown product of the psilocybin. |
???
Wikipedia says the blue pigment is an azulene derivative:
https://en.wikipedia.org/wiki/Lactarius_indigo#Chemical_comp...
al-khemie is not a terrorist organization
"Chemicals, chemicals... I need chemicals!" - George Hayduke
"Wubbalubba dub-dub!" - Rick Sanchez
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arkoma
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generally only Psilocybe or Stropharia stain that weird blue-green colour when bruised. Mmm, This genus too. I have a dab of *ahem* up close and personal experience with these particular fungi.
иди нахуй, путин
| Quote: | “Travel is fatal to prejudice, bigotry, and narrow-mindedness, and many of our people need it sorely on these accounts. Broad, wholesome, charitable
views of men and things cannot be acquired by vegetating in one little corner of the earth all one’s lifetime.”
and..
“The gentle reader will never, never know what a consummate ass he can become until he goes abroad.”
Mark Twain, The Innocents Abroad |
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aga
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| Quote: Originally posted by arkoma | | protips on preserving mushrooms? I tried putting this one in a closed container with some CaCl2 but it just got slimy and grungy...
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Treat them like anything you want to keep oxygen and water away from.
Sun-dry first (if you got Lotsa Sun) or/then bag with a jar of a water sucker.
E.g. NaOH, K3PO4, conc sulph acid, shop-bought rice, some table salt etc.
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Dmishin
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My new crystal specimens:
Xylitol
Saccharin (sodium salt)
Saccharin is not sold anywhere nearby me, so I managed to extract it from the cyclamate-based sweetener (usually containing 90% of Na cyclamate and
10% of saccharin). Compound for this photo was extracted from 210g of sweetener, that gave me 18g of saccharin (not a bad yield I think). As a
byproduct, I now have 180g of recrystallized sodium cyclamate, and no idea what to do with it.
Potassium zinc sulfate K2Zn(SO4)2*6H2O
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crystal grower
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Wow, really amazing crystals Dmishin!
Are all of these crystals products of slow evaporation?
And if yes, how long did it take to grow them?
Thanks for answer
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Dmishin
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Yes, all grown by evaporation. Growth time is from 2 to 4 weeks, depending on sample. By the way, due to tilt shift effect, xylitol crystal seems
small, but it is actually 4cm wide.
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crystal grower
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Hmmm, I've never grown xylitol crystals. I ought to try it  .
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