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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
Storing chemicals and ordinary refridgerators and freezers
I would not store flammable volatile solvents in the refridgerator, but other stuff can perfectly be ...
1-7-2021 at 23:00
by: woelen
XeF2 for making Perbromate
Some interesting ideas: https://www.api.simply.science/images/content/chemistry/metals_and_non_metal ...
28-6-2021 at 12:46
by: woelen
XeF2 for making Perbromate
This is really cool. It would be very nice if you could isolate a little amount of some perbromate s ...
28-6-2021 at 12:24
by: woelen
New chemicals for sale !
Xenon difluoride, 1 gram! I'm really interested what you are going to do with that. That's a really ...
26-6-2021 at 11:30
by: woelen
First yield of KClO3 from my cell
It greatly improves cell efficiency! For me, it even seems to be the difference between easy and qui ...
25-6-2021 at 02:01
by: woelen
Sodium borohydride and Sodium azide for sale
At July 1, there will be new harmonized regulations, regarding purchases outside the EU for EVERY pa ...
24-6-2021 at 06:50
by: woelen
Reaction between Potassium Bromate and sulfuric acid?
Yes, this is what actually occurs. If you add solid KBrO3 to HCl (e.g. 20% HCl), then you get a lot ...
24-6-2021 at 06:31
by: woelen
Copper hydride as a reducing agent?
Copper hydride and sodium hydride are completely different compounds. Copper hydride is some polymer ...
23-6-2021 at 13:04
by: woelen
Reaction between Potassium Bromate and sulfuric acid?
It could also be the KBrO3. Commercially, there is a 1 : 5 molar ratio mix of KBrO3 and KBr availabl ...
23-6-2021 at 12:49
by: woelen
Reaction between Potassium Bromate and sulfuric acid?
I did the experiment of adding room temperature 37% H2SO4 to solid KBrO3. When this is done, no reac ...
22-6-2021 at 12:56
by: woelen
sulfur charring?
Recently, I did some experiments with sulfur. I did the well-known experiment of heating it to just ...
22-6-2021 at 03:22
by: woelen
Has anyone grown nice crystals of tetraamminecopper(II) sulfate?
The ratios for ethanol/ammonia are not that critical. The most critical thing is that you let cool d ...
21-6-2021 at 23:05
by: woelen
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