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Author: Subject: Pretty Pictures (2)
warteo
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[*] posted on 4-10-2017 at 04:22


First post from me in a long time. Something very interesting too, check it out.

Two bottles, both containing quite similar looking compounds:

zmmxcy.jpg - 117kB

Change the lighting and ....

.
.
.
.


2q85z0n.jpg - 118kB

The first photo was taken under incandescent lighting, second photo is after the globe was changed over to a CFL.

In real life it's truly startling seeing the contents of the bottle change colour before your eyes when moving it between areas with different light sources.

On the left is Samarium acetate and at the right is Holmium acetate.
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Sulaiman
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[*] posted on 4-10-2017 at 06:42


Lovely photo's / effect.

Do you realise how much more complicated you have made life for
Periodic Table Of The Elements sample display makers ? :P




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[*] posted on 7-10-2017 at 06:53


Have not posted in a "while" but anyway,
Silicon carbide crystals on a carbon rod:


IMG_20171007_164312.jpg - 1.1MBIMG_20171007_164349.jpg - 1.1MB




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MrHomeScientist
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[*] posted on 10-10-2017 at 09:25


That's awesome! Did you grow those SiC crystals yourself or how were they made?
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crystal grower
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[*] posted on 10-10-2017 at 10:14


Quote: Originally posted by MrHomeScientist  
That's awesome! Did you grow those SiC crystals yourself or how were they made?

My friend gave them to me.
They were made industrially in an electrical arc furnace where carbon is in the centre and SiO2 is put around to rise up resistance and to keep the outer part cooler than the core. I'm not exactly sure what they are actually making but the SiC is basically an unwanted byproduct.
I have more samples and they look really cool under microscope but unfortunately my microscope is out of service atm:D so I can't take a better photo.
Here's another one (photo taken with a cell phone).


IMG_20171010_195944.jpg - 1.9MB




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symboom
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[*] posted on 10-10-2017 at 14:25


Put electricity through the silicon carbide I heard it lights up blue



Natures Intellectual Organic Peroxide. >>Ascaridole <<

Oxone
Used for the production of --> CH2O/Cl2/ClO2/Br2/I2

------------------------------------->>Hydrogen Peroxide << -------------------------------------------- >> Acetylene <<
Peroxide Salts
Zinc Peroxide <\> Copper Peroxide <\>Silver Peroxide <\>Lithium Peroxide <\>Magnesium Peroxide <\>Calcium Peroxide to Calcium Superoxide
CoO2. \\ NiO2 \\ Ti/V/Cr peroxy complex \\ Triamine chromium peroxide \\ LiH \\SiO2-H2SO4 (SSA) \\ [Ni(NH3)6]

Exotic reducing agents
Ga2O TiCl2 GeCl2 && Na2S2O4
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Shob dhillon
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[*] posted on 10-10-2017 at 19:44
recrystallizing some Sodium t-butoxide


Today I decided to finally purify my sodium t-butoxide using hot T-butyl alcohol, after leaving it on the shelf for a few weeks.


IMG_20170909_092211.jpg - 923kB
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[*] posted on 10-10-2017 at 20:14


I got a big polarized screen out of a busted monitor and I've been doing some filming with it. There's too many nice stills (and video) to post everything but here are some of my favorites:

Stress lines in gelatin:
IMG_20170916_bendyGel.jpg - 227kB

Water and corn syrup, with a layer of heavy corn syrup at the bottom:
IMG_20170917_RBFsunset.jpg - 530kB

Corn syrup flowing over & through glass beads:
IMG_20170920_drizzle1.jpg - 316kB IMG_20170921_drizzle2.jpg - 212kB




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crystal grower
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[*] posted on 10-10-2017 at 20:30


@Mayko Wow those are beautiful.



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crystal grower
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[*] posted on 10-10-2017 at 20:32


Quote: Originally posted by symboom  
Put electricity through the silicon carbide I heard it lights up blue

I've never heard about that. I'll try it.




Elements collected:31/92
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symboom
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[*] posted on 10-10-2017 at 22:13


Aha here is the video of silicon carbide its also used in leds
https://m.youtube.com/watch?v=MiHjPCzNxb8
https://m.youtube.com/watch?v=-b-BQZi7MvI




Natures Intellectual Organic Peroxide. >>Ascaridole <<

Oxone
Used for the production of --> CH2O/Cl2/ClO2/Br2/I2

------------------------------------->>Hydrogen Peroxide << -------------------------------------------- >> Acetylene <<
Peroxide Salts
Zinc Peroxide <\> Copper Peroxide <\>Silver Peroxide <\>Lithium Peroxide <\>Magnesium Peroxide <\>Calcium Peroxide to Calcium Superoxide
CoO2. \\ NiO2 \\ Ti/V/Cr peroxy complex \\ Triamine chromium peroxide \\ LiH \\SiO2-H2SO4 (SSA) \\ [Ni(NH3)6]

Exotic reducing agents
Ga2O TiCl2 GeCl2 && Na2S2O4
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LearnedAmateur
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[*] posted on 13-11-2017 at 08:12


Managed to grow this fluff ball out of the remains of nitric acid production (so about equimolar KHSO4 and KNO3 since I had a brain fart and used two molar equivalents of the latter). A pH strip indicates that it is primarily the bisulphate, and the strange thing was that it seemed to 'walk' of its own accord - a few smaller balls came first and then combined and migrated to the centre as the solution evaporated.

IMG_0349.JPG - 1.6MB




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[*] posted on 13-11-2017 at 08:45
GaCl3


Crystals of anhydrous gallium(III) chloride on the inside of the ampoule.

IMG_0239.JPG - 1.4MB
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[*] posted on 15-11-2017 at 08:56




IMG_3959.JPG - 1.2MB IMG_3960.JPG - 1.2MB
Here's a couple pictures of some methyl 2,4-diTBSOcinnamate I made at work that crystallized as beautiful opalescent crystals.




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Tetra
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[*] posted on 17-11-2017 at 10:39


Left: Nitrous Acid soln.
Middle: Copper (Tetra) Dichloroisocyanurate, Disodium salt
Right: Hexaammine Nickel (II) Sulfate
23666639_1273111679502181_1943647630_n.jpg - 33kB 23666732_1273111699502179_790258230_n.jpg - 34kB 23756232_1273111732835509_510038878_n.jpg - 26kB




In a perpetual search for Nitric Acid :[

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[*] posted on 18-11-2017 at 00:37


So, stopped by the thrift store today on my way home from work..

IMAG2308.jpg - 1.2MB IMAG2307.jpg - 1MB

. Pt wire hell's yeah.

IMAG2310_1.jpg - 253kB

I made a small coil from ~2" of wire. If you hold a lighter to it for a brief moment, then let off the butane to extinguish the flames and then just resupply butane gas... The coil starts glowing and will eventually reignite the lighter. After just a couple times it had modified surface texture to a somewhat gritty appearance.

Regardless, I was exceedingly pleased I spent the time to stop in there.

IMAG2362.jpg - 988kB IMAG2363.jpg - 613kB

And then I went back... Gold and silver wire with ceramic coating. RTE wire element for some kind of temperature measuring device is what I'm able to find on them.

It is such a specific form of metal, it would be foolish not to buy for the low price. I'd imagine it's not cheap new.

[Edited on 19-11-2017 by violet sin]




Sauce
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j_sum1
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[*] posted on 18-11-2017 at 01:14


Score!
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[*] posted on 18-11-2017 at 04:33


Good old catalysis in action, I've seen similar demonstrations using methanol instead, where a heated platinum gauze is held over methanol and it remains glowing. Neat find though, I need to get myself some Pt wire, very useful stuff.



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[*] posted on 18-11-2017 at 06:11


A crystal of what I believe is cesium trisoxallatoferrate(III) dihydrate.

Probably the first pictures of the compound on internet.

It was grown in the bottom of the container, so it doesn't represent the crystal habit of the compound perfectly.


https://imgur.com/gallery/napw4



IMG_7867.JPG - 301kB

[Edited on 18-11-2017 by CaCl2]
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hissingnoise
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[*] posted on 18-11-2017 at 07:32


Quote:
After just a couple times it had modified surface texture to a somewhat gritty appearance.

This effect in Pt wire is called "bambooing" and can easily be felt by rubbing a finger lengthwise on the wire...

Further heating/cooling cycles will lead to visible nodules forming along the wire with thinner areas between (as in a bamboo stem) until the wire eventually breaks.

IIRC, there is a process to reverse the effect but its mechanism quite eludes me now.


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[*] posted on 18-11-2017 at 10:06
OsO4


Osmium tetroxide and osmium metal melted by electronic beam.

Osmium tetraoxide 09.JPG - 1MBOsmium tetraoxide 14.JPG - 1.1MBOsmium tetraoxide 01.JPG - 1.3MB
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thumbup.gif posted on 20-11-2017 at 10:36


Quote: Originally posted by CaCl2  
A crystal of what I believe is cesium trisoxallatoferrate(III) dihydrate.

Probably the first pictures of the compound on internet.
[Edited on 18-11-2017 by CaCl2]

Love that! Thumbs up!
On par or better than my trisethylenediammine nickel(II) iodide crystals (regarding rarity).
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