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preparation of barbituric acid (question about the mechanism)
Deprotonation is one of the steps in this mechanism of amide formation, and urea is not a strong eno ...
2-9-2021 at 10:00
by: Tsjerk
Potassium bromate and iodide long term storage
They are stable salts, they won't degrade, but they could get moist over time. You could use some PT ...
29-8-2021 at 03:22
by: Tsjerk
What to do with my Ammonium Bicarbonate?
A solution of ammonia and CO2 basically is the same as a solution of ammonium bicarbonate:

CO2 + ...
29-8-2021 at 03:12
by: Tsjerk
Synthesis of thioacetone?
I'm very curious about this compound, especially about how bad it really is. But I'm definitely not ...
26-8-2021 at 00:39
by: Tsjerk
Sodium, I've done it!
Without any qualitative or quantitative measurements this says nothing. Do you have a reference stat ...
23-8-2021 at 13:04
by: Tsjerk
Help me identify this compound
What I think is interesting is that the loss of color is irreversible. I have no idea what it could ...
21-8-2021 at 11:31
by: Tsjerk
Electrolysis of Sodium Iodide to get Iodine
The only electrodes I can think of which aren't metal are graphite, and those erode quite fast. At l ...
18-8-2021 at 13:54
by: Tsjerk
Different molecular sieves question
To dry 96% ethanol you should first use a drying agent like MgSO4, to get it to 99%+

You can do i ...
18-8-2021 at 13:40
by: Tsjerk
Any benefit of exposure to non-UV light or sunlight through window?
I'm pretty sure there is more research done in molecular biology alone than in chemistry nowadays. B ...
16-8-2021 at 14:43
by: Tsjerk
Building a Lab Sink.
Whatever you do, get something made out of stainless steel. You will hate yourself for not doing so ...
16-8-2021 at 12:59
by: Tsjerk
COULD HAVE BEEN BAD--H2SO4 vs. PETE bottles
Concentrated sulfuric is fine for years in HDPE.
13-8-2021 at 14:57
by: Tsjerk
Electrolysis of Sodium Iodide to get Iodine
Are you still running at 12V? I don't think you will ever be able to do any electrolysis on a prepar ...
13-8-2021 at 14:25
by: Tsjerk
Sulphuric acid from copper sulphate and sulphur dioxide???
@teodor: with methanol you can make sulfuric acid out of NaHSO4, surely you can use it to separate t ...
12-8-2021 at 22:04
by: Tsjerk
Electrolysis of Sodium Iodide to get Iodine
Doesn't this work like with bromide? Where you electrolize just enough to get the right ratio iodide ...
11-8-2021 at 12:39
by: Tsjerk
Bromo-DDT, p,p-dibromo-diphenyl-1,1,1-trichloro-ethane
I tried something different to dispers the DDT, I dissolved about 200 mg in petroleum ether, bp 60-8 ...
10-8-2021 at 13:29
by: Tsjerk
Any benefit of exposure to non-UV light or sunlight through window?
https://www.nature.com/articles/s41598-017-11362-2
10-8-2021 at 11:53
by: Tsjerk
Puryfiing 99% denatured alcohol
If you are thinking about esterfication with acetic acid you can just as well go for the selective o ...
7-8-2021 at 12:53
by: Tsjerk
Nitration of phthalic acid
Does the pH meter work in anhydrous conditions? If so what readings do you get? Do you have some sta ...
5-8-2021 at 11:17
by: Tsjerk
Preparation of Bromine
Yes, so the salt and sulfuric acid together make Caro's acid. Without acid the salt is quite tame.
5-8-2021 at 08:35
by: Tsjerk
Puryfiing 99% denatured alcohol
[rquote=663607&tid=157689&author=Keras]Bromine can be used too, so a few drops of a bromine ...
5-8-2021 at 07:09
by: Tsjerk
Preparation of Bromine
The purpose of the acid is to make Caro's acid, without it oxone is quite gentle. I used it as a pow ...
5-8-2021 at 06:40
by: Tsjerk
Laboratoriumdiscounter.nl ratings
Ah, I just checked that bottle, the CAS was correct for the monohydrate label, but it turned out to ...
4-8-2021 at 11:03
by: Tsjerk
Laboratoriumdiscounter.nl ratings
[rquote=663568&tid=157773&author=metalresearcher]Site looks nice, but they are more expensiv ...
4-8-2021 at 07:35
by: Tsjerk
Laboratoriumdiscounter.nl ratings
Google has whole website translation while you use it, even easier. I have used it on Russian forums ...
3-8-2021 at 21:51
by: Tsjerk
Laboratoriumdiscounter.nl ratings
https://www.deoplosmiddelspecialist.nl

Also a nice supplier, just be a bit careful when ordering ...
3-8-2021 at 13:44
by: Tsjerk
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