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Author: Subject: sharing Awesome Chemical Pictures (Read first comment)
Ubya
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[*] posted on 14-6-2019 at 05:18


Quote: Originally posted by fusso  
Black organic compound?Weird.

highly conjugated, high absorbtion in the visible spectrum





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Practical
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[*] posted on 5-7-2019 at 00:25
Tryptamine from tryptophan


Purified freebase tryptamine from decarboxylation of tryptophan.


0D6F2B93-8CDA-449B-9297-C2F482A84EAE.jpeg - 535kB
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[*] posted on 5-7-2019 at 08:00


Quote: Originally posted by nimgoldman  
Harmine and harmaline hydrochloride crystals

Harmala alkaloids extracted from Peganum harmala (syrian rue) seeds, further purified by crystallization from brine.
These alkaloids are MAO inhibitors.
I further separate harmine and harmaline (DHH, dihydroharmine), the latter is further reduced to tetrahydroharmine (THH, leptaflorine) which is a weak SSRI with interesting benefits for central nervous system (could promote neuroplasticity).


I love that an extract from a plant called "rue" can be made into a weak SSRI. Funny. ;) Though from what I understand, plants usually get "rue" in their common name because they cause hayfever, not because they make people sad. Two different meanings of "rue," I guess.
https://imgur.com/vhrjqMX

[Edited on 23-3-2019 by nimgoldman]
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[*] posted on 16-7-2019 at 13:33
Molybdenum heteropolyacids are my long-time favorites


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[*] posted on 16-7-2019 at 21:55


Quote: Originally posted by Bezaleel  
Is it really blue? It looks white to me. Can you put it near a white background to make a contrast?



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[*] posted on 17-7-2019 at 14:30


Quote: Originally posted by fusso  
Is it really blue? It looks white to me. Can you put it near a white background to make a contrast?

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[*] posted on 17-7-2019 at 15:00


Playing with EDTA. Many complexes only seem to exist in solution. The copper-sodium complex retains its deep blue colour when the liquor evaporated, forming a glassy substance.

IMG_1420_small.JPG - 128kB

The lithium salt of the copper complex has the same deep blue colour in solution, but crystalises in a cyan-like variant of blue in tiny dull crystals.

The potassium salt of course has the same colour in solution, but separated into two phases on evaporation of the solution. A dark blue one, and one with the same colour as the lithium salt.
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[*] posted on 13-8-2021 at 14:53


Crystals of thiourea precipitating from a tin plating solution I made a while ago.

thiourea crystals.jpg - 483kB
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[*] posted on 16-8-2021 at 04:57


Quote: Originally posted by Chem Science  
Hi everyone :)


I'm starting !! Mercuric Cyanide Hg(CN)2
Double fun .. toxic mercury .. toxic cyanide ...uses ?? ... no idea realy :/



[Edited on 20-3-2019 by Chem Science]


Uses? As poison.
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[*] posted on 16-8-2021 at 16:38



Quote:

Hi everyone :)


I'm starting !! Mercuric Cyanide Hg(CN)2
Double fun .. toxic mercury .. toxic cyanide ...uses ?? ... no idea realy :/



[Edited on 20-3-2019 by Chem Science]


Uses? As poison.


Mercury Cyanide is a very very low dissociation salt. It's used for example to detect Palladium, because Palladium Cyanide has an even less dissociation constant and its insoluble.

Wiki
The use of mercuric cyanide as an antiseptic was discontinued due to its toxicity. Hg(CN)2 is also used in photography. It is still used in homeopathy under the Latin name Hydrargyrum bicyanatum.
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