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Experiments with concentrated nitric acid
If you have P4O10, then you can try to make N2O5 by carefully distilling that from a mix of P4O10 an ...
12-2-2020 at 05:28
by: woelen
Properties of metaperiodic acid?
The common form of periodic acid is the so-called ortho form: H5IO6. A better description of this ac ...
11-2-2020 at 13:42
by: woelen
What is generally legal or illegal in Germany/EU?
From having a few hundreds of ml of thionyl chloride to producing and deploying chemical weapons is ...
11-2-2020 at 00:22
by: woelen
Properties of metaperiodic acid?
Your question is very general, and hence we cannot give specific answers.

Periodic acid is a stro ...
10-2-2020 at 23:40
by: woelen
Strontium nitrate from strontium carbonate
Nitrosyl chloride is an orange/brown gas, which can exist in concentrated HCl as a bright orange sol ...
10-2-2020 at 13:03
by: woelen
Ni(IV) - periodatonickelates
Interesting material. I once made this material accidentally, in an attempt to make something else. ...
10-2-2020 at 11:48
by: woelen
Hexammine Nickel Chlorate
A related complex, nickel bis-(dien) perchlorate. Here (dien) stands for diethylenetriamine, H2N-CH2 ...
9-2-2020 at 10:19
by: woelen
Latest chemical order?
Finally my order of diethylenetriamine (dien) arrived. This stuff looks very much like ethylene diam ...
8-2-2020 at 12:32
by: woelen
Reactions of chlorosulfonic acid
Chlorosulonic acid can be purchased in NL (e.g. at Hinmeijer, Dulova), but also in Germany (S3 chemi ...
8-2-2020 at 08:52
by: woelen
Reactions of chlorosulfonic acid
I have been experimenting with chlorosulfonic acid lately. I tested its reactions with many oxoacid ...
7-2-2020 at 14:45
by: woelen
Isn't this a little gem?
Making NH4ClO4 is not interesting for me, I have quite a lot of the stuff and I can purchase more of ...
7-2-2020 at 00:58
by: woelen
Sulfur dioxide
I indeed would not worry too much. If you just had adverse effects for a few minutes, then there is ...
7-2-2020 at 00:51
by: woelen
Isn't this a little gem?
This is a 1922 thesis. At that time probably HClO4 was much more expensive industrially.
For me, HC ...
6-2-2020 at 13:48
by: woelen
Isn't this a little gem?
I indeed will try this.

Several years ago I purchased some cheap NH4ClO4 (the only common perchlo ...
6-2-2020 at 11:25
by: woelen
Uses of mercury(I)-chloride?
Hg2Cl2 is highly insoluble and that is the reason for its reduced toxicity, compared to many other H ...
6-2-2020 at 10:59
by: woelen
Bromo-DDT, p,p-dibromo-diphenyl-1,1,1-trichloro-ethane
Interesting to see that a compound can have such a strong effect on insects, while being relatively ...
6-2-2020 at 10:55
by: woelen
What is generally legal or illegal in Germany/EU?
After that date, there is a grace period, in which you can use up your acid (when the previous regul ...
6-2-2020 at 07:09
by: woelen
Bromo-DDT, p,p-dibromo-diphenyl-1,1,1-trichloro-ethane
Aren't you afraid of potential health issues by exposing yourself to this stuff? It sounds like bein ...
6-2-2020 at 05:55
by: woelen
Isn't this a little gem?
Several years ago, I purchased a full kilo of pyro-grade NH4ClO4 (it was cheap, beige/brownish mater ...
6-2-2020 at 05:52
by: woelen
Neodymium iodide synthesis - powder supplied also contains Praseodymium?
@Lion850: That eBay seller is a bad seller. Selling an item as 99.9% pure, while you have such crap ...
6-2-2020 at 05:40
by: woelen
Oxidation of phosphine to phosphorus
Indeed, phosphine produced by an amateur will almost certainly contain a little diphosphine (P2H4, s ...
5-2-2020 at 23:57
by: woelen
Neodymium iodide synthesis - powder supplied also contains Praseodymium?
I woulkd reclaim the money from that seller. Most likely your "neodymium" is a mix of metals, includ ...
5-2-2020 at 23:45
by: woelen
Oxidation of phosphine to phosphorus
Working with phosphine can kill you. The same is true for working with Cl2 (the latter is even more ...
5-2-2020 at 13:26
by: woelen
What is generally legal or illegal in Germany/EU?
The regulation for more than 40% acid is after the start of February, 2021. So, you now still can bu ...
5-2-2020 at 13:18
by: woelen
What is generally legal or illegal in Germany/EU?
The 40% regulation for H2SO4 is not a real problem. Where I live, most companies already limit sale ...
5-2-2020 at 06:41
by: woelen
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