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Laboratoriumdiscounter.nl ratings
I have ordered two times from them and my experience was good. Fast shipping and decent prices. I on ...
2-8-2021 at 13:42
by: woelen
Violuric acid salts (fantastic colors and variety)
I roughly used the route, described on Illumina, but I did not use any NaCl. That adds another ion ( ...
1-8-2021 at 12:17
by: woelen
Selenium sulfide and selenium extraction
Interesting thread. Sulfur and selenium sulfide dissolve in solutions of sulfides, also in a solutio ...
30-7-2021 at 01:22
by: woelen
Latest chemical order?
Using KClO4 for making other perchlorates or perchlorate complexes is hardly possible. KClO4 indeed ...
30-7-2021 at 00:09
by: woelen
Long term experiment: does this make chlorosulfonic acid?
The time capsule still exists :D

The ampoule is as if I made it yesterday, still two layers. I co ...
29-7-2021 at 06:04
by: woelen
Storage of 35% H2O2
I tried making CaO2, simply because I had Ca(OH)2 and CaO, while I did not have the corresponding Sr ...
29-7-2021 at 05:38
by: woelen
pyrosulfuryl chloride
That latter thing is really interesting. Do you have a practical method of letting CH2Cl2 react with ...
29-7-2021 at 05:32
by: woelen
Violuric acid salts (fantastic colors and variety)
My barbituric acid arrived :)
Next weekend I want to make some violuric acid.

@RustyShackleford ...
29-7-2021 at 01:01
by: woelen
Storage of 35% H2O2
I think that with much higher concentration than 3% your preparation works better. With 3% you get d ...
29-7-2021 at 00:48
by: woelen
pyrosulfuryl chloride
[quote]

"At 170C the reaction

2ClSO3H <-> SO2Cl2 + H2SO4

is a reversible one, and aft ...
29-7-2021 at 00:04
by: woelen
pyrosulfuryl chloride
Sometimes the reactions of compounds like these discussed here are surprising. I have SO2Cl2 and I h ...
28-7-2021 at 02:02
by: woelen
Reaction of sulfur and TCCA
NaCl + sulfur? I think that no reaction occurs at all, even when heated so much that the sulfur boil ...
26-7-2021 at 23:13
by: woelen
Storage of 35% H2O2
I am afraid that something is wrong with your H2O2 and that it has slight contamination with some ca ...
22-7-2021 at 23:36
by: woelen
FeBr3 from Fe
I do not expect any decent yield. Nearly all Br2 will evaporate and you just fume yourself! You also ...
22-7-2021 at 00:43
by: woelen
Solubility of Copper Salts
I assume you are talking about copper(II) salts.

Copper(II) ascorbate is not stable. There will ...
22-7-2021 at 00:34
by: woelen
Science Madness Mug
I just see this thread now and I must say that I like this initiative. If you make any profit with t ...
19-7-2021 at 05:48
by: woelen
HCl + Cu + KClO4 odd reaction
The KClO4 does nothing at all, as stated by Bedlasky. Ionic perchlorates have no oxidizing power at ...
19-7-2021 at 03:02
by: woelen
Violuric acid salts (fantastic colors and variety)
I finally ordered some barbituric acid (from S3 chemicals), so that I also can jump in in this threa ...
19-7-2021 at 02:08
by: woelen
TCCA Chlorine Generator with other acids
TCCA and weak acids do not make a nice chlorine generator. You surely get chlorine, but the reaction ...
14-7-2021 at 23:23
by: woelen
Silver in hydrogen peroxide
Silver(I, III) oxide, Ag2O2, is dark grey, almost black. I have made that compound a few times. It c ...
14-7-2021 at 00:50
by: woelen
Cheap 97% sulfuric acid and 35% hydrogen peroxide [from EU]
These regulations are taken seriously, at least in the Netherlands. Companies, who were selling 37% ...
13-7-2021 at 06:19
by: woelen
Cheap 97% sulfuric acid and 35% hydrogen peroxide [from EU]
H2SO4: max. 15% by weight
H2O2: max. 12% by weight
12-7-2021 at 01:16
by: woelen
My selenium compounds
Mercury(II) selenite isn't white? It clearly has a somewhat yellow color in your vial. I have a few ...
7-7-2021 at 23:57
by: woelen
Why don't electrons lose energy when revolving?
Macroscopically, orbiting objects lose energy. Orbiting charges lose energy through electromagnetic ...
6-7-2021 at 04:13
by: woelen
antimony trioxide
If you have CsCl and conc. HCl, then you can do a really interesting experiment and make Cs3[SbCl6]. ...
6-7-2021 at 03:29
by: woelen
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