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Supplier of unusual inorganic from Poland
I think that all good suppliers every now and then make mistakes or have less than ideal purity of t ... |
6-12-2021 at 00:14
by: woelen |
2021 Secret Santa - Sign up here
The word "klaas" comes from the name of Saint Niklas. In Dutch this is Sint Nicolaas, and Sint Nicol ... |
2-12-2021 at 12:43
by: woelen |
2021 Secret Santa - Sign up here
I'll make a write-up in a separate thread, tell something about the system I used to narrow down the ... |
30-11-2021 at 13:31
by: woelen |
2021 Secret Santa - Sign up here
I solved the puzzle from my secret santa!
Here you can see the solution I found, without opening ... |
27-11-2021 at 09:54
by: woelen |
Practical experience with beryllium and its compounds
Vano, reactivity comes in different 'flavors'. Your oxide is reactive in the sense that it can be hy ... |
24-11-2021 at 01:53
by: woelen |
MEK source europe
They still sell chlorates on that site, but only to companies (you need to provide a so-called KvK-n ... |
23-11-2021 at 06:49
by: woelen |
Very good explanation of evolution with simulations
I accidently came across a very nice video about evolution and how it works. Someone made a simulati ... |
19-11-2021 at 14:51
by: woelen |
Storing concentrated ammonia water
No problem to store ammonia up to even 30% in ordinary glass or plastic bottles. It is sold in such ... |
19-11-2021 at 00:07
by: woelen |
Synthesis of Lanthanum(III) acetylacetonate
Maybe a metaborate or borax could be used as mild base, but I'm not sure whether these lead to preci ... |
15-11-2021 at 13:24
by: woelen |
2021 Secret Santa - Sign up here
I had good progression with my Santa puzzle, the red and yellow ones I have determined with great ce ... |
13-11-2021 at 13:43
by: woelen |
2021 Secret Santa - Sign up here
I also am waiting for an order, which I need to make a nice present for . . .  |
11-11-2021 at 00:13
by: woelen |
Making rubies using microwave
[rquote=667136&tid=158046&author=Admagistr][...] should I ask the moderator to remove it if ... |
11-11-2021 at 00:10
by: woelen |
2021 Secret Santa - Sign up here
I already received my Secret Santa present  Thanks for the very fast preparation
and shipping!
I ... |
10-11-2021 at 00:13
by: woelen |
Report on trying to make lithium dichromate
If you have diethyl ether, use that. Ether dissolves some water, but it is quite inert towards oxida ... |
10-11-2021 at 00:07
by: woelen |
ammonium thiocyanate
Keep in mind that recrystallization of ammonium thiocyanate is very difficult. The chemical is reall ... |
9-11-2021 at 00:00
by: woelen |
Making rubies using microwave
Why use CrO3? Can't you make rubies with Cr2O3, which is much easier to obtain and also is much safe ... |
8-11-2021 at 06:53
by: woelen |
Diluting 90+% Nitric Acid to 70%?
No need to do the distillation in darkness. Full bright sunlight may cause some decomposition, but I ... |
8-11-2021 at 00:01
by: woelen |
Remarkable reaction with MoO3, producing vapor of molybdenum compound
Interesting read. I'll also have a look at your page in more detail.
I read that MoCl3 does not d ... |
7-11-2021 at 13:47
by: woelen |
Remarkable reaction with MoO3, producing vapor of molybdenum compound
If you have PCl5 and MoO3, then you can do a really interesting experiment. These chemicals allow fo ... |
6-11-2021 at 13:13
by: woelen |
Tips on filming reactions with a phone?
I made quite a few videos for my website and I can tell that making good videos is not that easy. Ma ... |
4-11-2021 at 11:46
by: woelen |
Onyxmet Fluorine sphere : really ?
Normally I really recommend Onyxmet (I have purchased quite a few times from him and he never disapp ... |
4-11-2021 at 02:22
by: woelen |
Supplier of unusual inorganic from Poland
Yes, I can wholeheartedly recommend Onyxmet. The owner of the company is very helpful and the qualit ... |
2-11-2021 at 01:16
by: woelen |
Sulphurous acid metastability and catalysts
SO2 usually acts as reductor, but it also can act as oxidizer. E.g. if you bubble H2S through a solu ... |
1-11-2021 at 00:08
by: woelen |
Sulphurous acid metastability and catalysts
Sulfurous acid is quite stable with respect to disproportionation of sulfur to sulfur(VI) and sulfur ... |
31-10-2021 at 13:55
by: woelen |
Latest chemical order?
I purchased an ozone generator tube, with a separate adjustable power supply (3 ... 40 W high freque ... |
29-10-2021 at 07:08
by: woelen |
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