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Acquiring MMO anodes
The titanium becomes passivated and is not corroded in a chlorate cell.
Remarkably, in a bromate ce ...
17-11-2017 at 00:08
by: woelen
Again blocked profile
How did you post your offerings? Maybe it was me, marking your post as spam. We get spam multiple ti ...
16-11-2017 at 00:17
by: woelen
How to make chromium (III) oxide (Cr2O3)
You will have a very hard time dissolving chromium in nitric acid. The metal passivates and dissolvi ...
16-11-2017 at 00:03
by: woelen
Transition (and other) metal salts of Carboxylic Acids and their properties
With salts of cobalt(II) and manganese(II) this is not very easy. Cobalt(II) and manganese(II) are v ...
14-11-2017 at 06:32
by: woelen
An unknown, yellow Nickel compound
[rquote=497194&tid=78099&author=kmno4][rquote=496985&tid=78099&author=Tetra]An unkno ...
13-11-2017 at 01:14
by: woelen
An unknown, yellow Nickel compound
Instead of buying expensive reagent grade chemicals you also can buy some equipment, allowing you to ...
9-11-2017 at 23:36
by: woelen
Last chemical order?
The other 1% is unspecified. The boric acid is at least 99% pure, the rest is impurities. This can b ...
6-11-2017 at 04:13
by: woelen
What were your first experiments when you got in to this hobby?
My first experiments were when I was 15 or so. I really was impressed by my first chemistry demo at ...
1-11-2017 at 07:46
by: woelen
Urea, OTC, CHEAP, and EASY
Sounds interesting. What is diesel exhaust fluid? I never heard of this. Maybe it is something unkno ...
1-11-2017 at 07:32
by: woelen
Last chemical order?
I did some experimenting with the CPPO. It does noty produce any light in aqueous solution. You need ...
29-10-2017 at 07:04
by: woelen
Split from "Disagreeable Impurity in Drain Cleaner..."
The name "SWIM" is OK to me and being an old hive member also is OK to me. We only look at posting a ...
12-10-2017 at 22:49
by: woelen
Any ideas to clean red phosphorus out of Buchner frit?
Bleach works better, fasster. And wasting precious nitric acid for this is not a good idea, unless y ...
12-10-2017 at 22:46
by: woelen
Thionyl chloride -- would this work?
Do you intyend to do this in practice? Making Cl2O is quite difficult. I never managed to make a dec ...
11-10-2017 at 22:38
by: woelen
Will nickel(II) hydroxide react with sodium hypochlorite or hydroxide?
Sodium hypochlorite reacts with nickel hydroxide. A black insoluble compound is formed, most likely ...
11-10-2017 at 22:35
by: woelen
Any ideas to clean red phosphorus out of Buchner frit?
Simple bleach works perfectly fine. Just soak it with bleach and wait until no more phosphorus can b ...
11-10-2017 at 22:29
by: woelen
Split from "Disagreeable Impurity in Drain Cleaner..."
It is not a real issue of you revive old threads, but the contribution should make sense. In SWIM's ...
10-10-2017 at 22:55
by: woelen
Making cranberry glass, glass colored by gold nanoparticles.
General is OK for this post.

Interesting experiment. I also want colloidal gold in my element col ...
10-10-2017 at 02:53
by: woelen
Question: Red phosphorus purification
Ammonium hydroxide is nearly non-existent ;) call it aqueous ammonia

As you can read higher up in ...
9-10-2017 at 22:50
by: woelen
Last chemical order?
A full 100 grams of bis-(2,4,5-trichloro-6-(pentyloxycarbonyl)phenyl)oxalate for only EUR 23 (simply ...
9-10-2017 at 04:39
by: woelen
Fertilizer's NPK rating - how is this calculated?
it does not matter whether N is counted as N2, N, N3 or Nx. The relevant thing is that the total wei ...
5-10-2017 at 22:52
by: woelen
What is considered drug stuff and not drug stuff? Ammonia isn't drug stuff??
There are many general reagents, which can be abused for making drugs (e.g. NaOH, I2, H2SO4, HCl, NH ...
5-10-2017 at 02:06
by: woelen
Fertilizer's NPK rating - how is this calculated?
As far as I know, the percentages are computed as if the elements are present as their oxides:
- Ni ...
4-10-2017 at 06:36
by: woelen
Fluorinating the benzene ring
Then apparently this is a complex procedure. Fluorinating organics differs a lot of chlorinating or ...
4-10-2017 at 06:08
by: woelen
Super oxidizer: combination of periodate and peroxodisulfate
I used the metaperiodate. If you have the orthoperiodate, then you can use H2SO4 (not HCl) to compen ...
2-10-2017 at 09:21
by: woelen
Super oxidizer: combination of periodate and peroxodisulfate
I did not pursue this any further, due to having very limited time for experimenting. There are sooo ...
2-10-2017 at 00:48
by: woelen
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