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This is mandatory stuff for (amateur) chemists (Safety)
Very nice, and I understand that on YouTube this is something nice, with his 400K subscribers.
B ... |
27-9-2020 at 02:48
by: Tsjerk |
Ika-combimag ret stirring problems
Everything is functioning, it is just that the two calibration rubbers from the ring are gone. |
20-9-2020 at 03:45
by: Tsjerk |
Ika-combimag ret stirring problems
To clarify: There is a ring attached to the motor with slits, above and beneath there are an IR LED ... |
19-9-2020 at 15:07
by: Tsjerk |
Ika-combimag ret stirring problems
How does this IR sensor thing work? The rotation speed control on my IKA stopped working, I only had ... |
19-9-2020 at 14:42
by: Tsjerk |
New chemicals for sale !
[rquote=644282&tid=63883&author=earpain]
Mario: Bear with me buddy! You need this
[Edited ... |
18-9-2020 at 07:12
by: Tsjerk |
Collection of bromine preps
Yes, it doesn't dissolve too well in water. |
17-9-2020 at 12:36
by: Tsjerk |
Separate EtOH and IPA
I wouldn't start trying to separate these two, it is just really hard. What do you need the IPA for? ... |
17-9-2020 at 05:23
by: Tsjerk |
Vacuum aspirator using DMSO
I always use water with my aspirator and I get the vacuum down very close to the vapor pressure of t ... |
16-9-2020 at 03:20
by: Tsjerk |
Vanillin bisulfite adduct
See [url=https://patents.google.com/patent/US3600442A/en]example 1[/url].
Yes, dissolving the van ... |
11-9-2020 at 06:18
by: Tsjerk |
Preparing CaO from carbonate or hydroxide?
[rquote=644448&tid=156138&author=macckone]SC Wack,
580C is not close to the melting point o ... |
11-9-2020 at 01:24
by: Tsjerk |
Collection of bromine preps
Bromate, bromide and sulfuric acid is a nice one. Woelen has a nice page on it. You can even partly ... |
10-9-2020 at 08:22
by: Tsjerk |
Anyone else having horrible shipping delays, or is my package lost?
Deschem --> Netherlands in 10 days!
It might not be the best quality, but for Deschem prices I ... |
9-9-2020 at 00:45
by: Tsjerk |
Preparing CaO from carbonate or hydroxide?
I can imaging the carbonate is preferred because the decomposition temperature of the hydroxide is n ... |
7-9-2020 at 02:49
by: Tsjerk |
Doing the math with Ammonium Hydroxide
Forget the volumes, the 28% is weight/weight, not volume/volume. The 28% means 28% of the mass is NH ... |
5-9-2020 at 13:00
by: Tsjerk |
Small scale production of H2SO4 in the amateur lab
Adding methanol to a potassium hydrogen sulfate solution works and is nearly quantitative.
http:/ ... |
5-9-2020 at 06:35
by: Tsjerk |
The simplest preparation of sulfuric acid?!
This reaction works and is nearly quantitative. I added 100 ml methanol to 100 ml solution containin ... |
5-9-2020 at 06:31
by: Tsjerk |
About anthranilic acid
How did you prepare 22% hypochlorite?
There is a topic somewhere here from not too long ago about ... |
5-9-2020 at 02:28
by: Tsjerk |
Vapour temperature of a boiling salt solution
The water vapour leaving the solution will have the same temperature as the solution, which makes se ... |
3-9-2020 at 12:03
by: Tsjerk |
The Synthesis of Benzoyl Chloride via The Sulfur Catalyzed Chlorination of Benzaldehyde
Well, it wouldn't have made sense to try the UV anyway because the reaction runs without a catalyst ... |
2-9-2020 at 06:30
by: Tsjerk |
The Synthesis of Benzoyl Chloride via The Sulfur Catalyzed Chlorination of Benzaldehyde
https://www.prepchem.com/synthesis-of-benzoyl-chloride/
See the second preparation
[Edited on 1 ... |
1-9-2020 at 11:29
by: Tsjerk |
Caution: Making bromine from TCCA and ammonium bromide does not work
Woelen has a page about bromine oxidation of ammonia, but he states ammonium is not oxidized. Also T ... |
30-8-2020 at 08:14
by: Tsjerk |
Notation
[rquote=643901&tid=156106&author=Maurice VD 37]Simple O can never be found in equations.[/rq ... |
30-8-2020 at 01:32
by: Tsjerk |
European Sulfuric Acid Ban
[rquote=643770&tid=155798&author=karlos³]
Also, is this stuff even really effective for th ... |
28-8-2020 at 07:13
by: Tsjerk |
Most toxic compound OTC?
I had an Aconitum doing great behind the same window on the south as the Passiflora, but I probably ... |
27-8-2020 at 00:02
by: Tsjerk |
Nitric acid questions
If you click on preview post you can upload files. If it is an image the forum software will recogni ... |
26-8-2020 at 12:15
by: Tsjerk |
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