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TLC challenge
I'm playing with something (an organic preparation) nowadays and made a TLC sheet in the morning.
I ...
3-11-2022 at 11:41
by: Pumukli
Synthesis of malonic acid
I could not resist and tried to make malonic acid via the nitric acid oxidation of malic acid.
Well ...
3-11-2022 at 11:08
by: Pumukli
Dibenzalacetone - Organic Synthesis writeup
Nice colours! :)

I'd like to suggest that besides the masses of used reagents a molar equivalent ...
23-10-2022 at 08:19
by: Pumukli
Anyone tried DCVC (Dry Column Vacuum Chromatography)
Nice synchronicity. :)

A few days ago I came across this:

It is from the same author.

[fil ...
21-10-2022 at 23:54
by: Pumukli
Large scale anthranilic acid prep
Wow! This is separation and efficiency! Hats off, SuperOxide!
I want to do this to my "craps" too! ...
18-10-2022 at 10:48
by: Pumukli
Mono-Nitration of Phenol [Tarr Elimination Method]
That 98% nitric acid will be interesting.
My first reaction in my youth was nitrating (well, attemp ...
14-10-2022 at 07:06
by: Pumukli
Some questions about a reaction to obtain 2-Chloroacetamido-5-Chlorobenzophenone
I don't want to sound paternizing (not too much) but honestly, you should stay away from this synthe ...
14-10-2022 at 06:50
by: Pumukli
Bromatometry
Thank You Bedlasky for your work in organic analysis!
This is a neglected part of chemistry here on ...
8-10-2022 at 04:36
by: Pumukli
Phenol from Salicylic acid
That's true, UC wrote that the main bulk of phenol was passing over between 145-165 C, measured in t ...
12-9-2022 at 03:31
by: Pumukli
Phenol from Salicylic acid
Hello Diachrynic! When I found the paper I thought roughly the same.

But Unintentional's phenol p ...
11-9-2022 at 15:31
by: Pumukli
Is there a realistic way of DIYing a small catalytic converter for combustion purposes?
A piece of a car catalytic converter ceramic positioned above the flame at the proper height (to be ...
10-9-2022 at 10:48
by: Pumukli
Phenol from Salicylic acid
Ladies and gentlemen!

I think that the root of the problem lies elsewhere... :)

By accident I ...
10-9-2022 at 10:29
by: Pumukli
Colloidal gold from old electronics.
Looks good.
But why use mercury?
YT is full of "recovering gold from old electronics" videos - but ...
6-9-2022 at 22:06
by: Pumukli
Tin based pesticides
Different people have different problems.

I have several kilos of a fenbutatin-oxide containing p ...
4-9-2022 at 23:12
by: Pumukli
Heating element, hitting specific temperature success
Maybe that 1A was the bottleneck.
What if you tried a 12V 2A power supply next time?
(I bet you di ...
31-8-2022 at 11:06
by: Pumukli
Phenol from Salicylic acid
Needs hard heating, the temperature of the molten acid should be (in my opinion) around 150-200 C at ...
30-8-2022 at 10:09
by: Pumukli
Isononyl alcohol
Household bleach would do.
Search the paper which describes it, I used this method in menthol -> ...
29-8-2022 at 08:55
by: Pumukli
Isononyl alcohol
I would try NaOCl first. :-)
29-8-2022 at 04:10
by: Pumukli
Mono-nitration of dimethylaniline
"Not much can be told" ... ;)

Though on second thought, maybe a melting point or two is missing. ...
22-8-2022 at 01:20
by: Pumukli
Mono-nitration of dimethylaniline
Very good hands-on (wet?) chemistry!
I really liked it, especially because I came across this synth ...
20-8-2022 at 01:56
by: Pumukli
Sticky Situation
Thanks for the effort, Texium!

I was thinking about some sort of "distilling the essence of the t ...
12-8-2022 at 11:00
by: Pumukli
Paper chromatography ?
Something to think about - at least for me, to entertain myself. ;)

On the picture you can see a ...
5-8-2022 at 09:42
by: Pumukli
Preparation of ionic nitrites
I would avoid ethyl-nitrite/nitrate altogether and would try to do something (optimize?) the HNO3/st ...
13-7-2022 at 06:11
by: Pumukli
Catalyst for Amide hydrolysis
Boffis did a nice hydrolysis research on DEET years ago. Check his work here in the forum (or in th ...
29-4-2022 at 11:52
by: Pumukli
Quantitative test of a sample of ostarine
I'd try to test for fluorine. Sample digested by alkaline hydroxide and then testing / measuring the ...
28-4-2022 at 11:17
by: Pumukli
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