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Your favourite ethanol cleanup?
I would just get some cheap denatured azeotropic ethanol, reflux with NaOH. Dry with MgSO4 and disca ...
17-1-2022 at 14:58
by: Tsjerk
Multiple long synthesis doublechecks
Whenever a drug is claimed to fix about anything I start doubting. What is the name of the compound ...
16-1-2022 at 13:18
by: Tsjerk
Ion exchange resin from Brita filter
The brown/black resin is cation resin, it didn't bind TNP, but it does bind acid (after being satura ...
15-1-2022 at 23:31
by: Tsjerk
Ion exchange resin from Brita filter
I'm pretty sure the black stuff is resin, see this picture:

[file]92044[/file]

The carbon see ...
15-1-2022 at 00:52
by: Tsjerk
Ion exchange resin from Brita filter
I picked up a spent Brita water filter from friend's company. It seems to contain three kinds of res ...
14-1-2022 at 13:48
by: Tsjerk
Separating OTC Xylene
Chloroform and toluene? Those are 50 degrees apart, water would only give two azeotropes which are c ...
14-1-2022 at 02:40
by: Tsjerk
New video: Butyric acid to butyryl chloride using thionyl chloride
The YouTube account doesn't exist anymore, YouTube says it is deleted by the owner.
11-1-2022 at 01:59
by: Tsjerk
Glutamic acid from MSG
[rquote=669879&tid=158263&author=DocX]D'accord.
There is no real point in [i]not[/i] measu ...
10-1-2022 at 11:42
by: Tsjerk
Preparation of Thalidomide
Definitely get some DMF to recrystallize when you go the glutamic acid route.

[Edited on 9-1-2022 b ...
9-1-2022 at 10:49
by: Tsjerk
Glutamic acid from MSG
[rquote=669852&tid=158263&author=DocX]So in practical terms, I could, even without checking ...
9-1-2022 at 10:45
by: Tsjerk
Help to understand a chemical procedure
What is wrong with this:

[quote]
c) Dipeptide ester IIc: added dropwise to a solution of 3.10 g ...
9-1-2022 at 07:39
by: Tsjerk
How common is long-term loss of smell if you get Omicron while vaccinated?
I read omikron infects the throat first, giving the immune system sone time to react, making the cha ...
9-1-2022 at 06:39
by: Tsjerk
HNO3 from kno3+hcl
When you just want a red/purple flame, you could make SrCl2 with excess SrCO3 with HCl. Filter the ...
8-1-2022 at 12:08
by: Tsjerk
Small scale production of H2SO4 in the amateur lab
Maybe it is not all that practical to get sulfuric acid up to 80%, but from that point on: Can sulfu ...
8-1-2022 at 09:04
by: Tsjerk
Easy-to-synthesize odor compounds
[rquote=669788&tid=158258&author=JacobM]
Edit: Battery acid sold by the autozone a few minu ...
8-1-2022 at 09:00
by: Tsjerk
Preparation of Thalidomide
I know you were just asking about what the 1,93 gr was, as I indeed forgot to put it in the text.

...
8-1-2022 at 08:53
by: Tsjerk
Easy-to-synthesize odor compounds
80% sulfuric acid is perfect for a Fischer esterification. Maybe not perfect, but fine at least.
8-1-2022 at 05:10
by: Tsjerk
HNO3 from kno3+hcl
Will not work, NOCl will form.
7-1-2022 at 14:02
by: Tsjerk
Pure metallic calcium for sale.
Not a question specifically for you Admagistr, but to everyone around here: anything interesting to ...
6-1-2022 at 22:20
by: Tsjerk
Stainless steel solvent still?
I even use PTFE tape to seal my Buchner funnel when doing vacuum filtrations. The vacuum pulls every ...
5-1-2022 at 03:04
by: Tsjerk
Alternative uses for an illegally owned Oxygen tank?
Still, couldn't you fill it with argon yourself? Then it is very useful, even with the medical regul ...
4-1-2022 at 10:34
by: Tsjerk
Where can I get penicillium molds for making penicillin?
You should really buy a cultivated strain, penicillium is easily isolated, they are the once that tu ...
3-1-2022 at 22:59
by: Tsjerk
Preparation of Thalidomide
Ah, yes. 8,5 gr isn't correct English. It is Dutch, 1 gr is 1 gram as 8,5 gram is 8.5 grams. The 1.0 ...
1-1-2022 at 08:54
by: Tsjerk
Olive Trees
[rquote=669361&tid=80489&author=Neal]Some various quotes from this thread:

[quote]My init ...
29-12-2021 at 13:02
by: Tsjerk
fun with acetylene
I once was convinced by a friend from the east of the Netherlands carbid schieten was a good thing t ...
29-12-2021 at 12:50
by: Tsjerk
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