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Synthesis of cerium (IV) salts
I hope that your oxide CeO2 is not extremely inert. It depends on how strongly it is calcined.
I ... |
19-4-2024 at 00:03
by: woelen |
Tetraethylammonium metal complexes
Same to me. With potassium I just get a white precipitate of KCl, and with tetramethylammonium I got ... |
9-4-2024 at 02:28
by: woelen |
Tetraethylammonium metal complexes
You tried the red chlorocomplex salt of tetramethylammonium instead of cesium? I also tried that, bu ... |
7-4-2024 at 23:07
by: woelen |
Tetraethylammonium metal complexes
The reaction with cesium is described on this web page: https://woelen.homescience.net/science/chem/ ... |
7-4-2024 at 09:57
by: woelen |
Tetraethylammonium metal complexes
Interesting find! Getting the tetraethylammonium salt is not easy though. I can obtain tetramethylam ... |
6-4-2024 at 11:39
by: woelen |
Hydroxochromate stability
The reaction between oxygen and alkaline solutions of chromium(III) indeed does occur, but very very ... |
27-3-2024 at 00:21
by: woelen |
NHN based improved primary composition
[rquote=691944&tid=159452&author=untrained professional]Might a balanced mix of nhn and tacp ... |
26-3-2024 at 00:33
by: woelen |
Concentrating storebought 15% muriatic acid
Anhydrous CaCl2 can be obtained in hardware stores as drying agent for air drying purposes. You can ... |
22-3-2024 at 02:16
by: woelen |
Concentrating storebought 15% muriatic acid
You can concentrate it a little more to appr. 20% by careful boiling. Initially, mainly water boils ... |
21-3-2024 at 08:07
by: woelen |
Do i have Potassium Chromate?
Cr(OH)3 only dissolves in fairly strong solutions of NaOH. If you have a solution with a pH equal to ... |
21-3-2024 at 08:03
by: woelen |
Oxide layer on Copper
The presence of other metal ions and certain anions also can change the redox properties of copper ( ... |
15-3-2024 at 00:30
by: woelen |
Multiple bad experiences with AliExpress
My experiences with Amazon are quite good actually. But I must say, I only bought stuff from EU-base ... |
13-3-2024 at 00:44
by: woelen |
Experiment with algebraic integers
Actually, the points at 1, -0.5 + 0.5*sqrt(3) and -0.5 - 0.5*sqrt(3) have zero density if only irre ... |
27-2-2024 at 02:38
by: woelen |
Multiple bad experiences with AliExpress
Beware of these: https://www.fruugo.nl/ssd-solid-state-4tb-990-pro-m2-2280-ssd-pcie-40-nvme-gaming-i ... |
25-2-2024 at 13:06
by: woelen |
NO2 refusing to condense
The most likely problem of the OP is that the path between the place where NO2 is produced and where ... |
25-2-2024 at 12:50
by: woelen |
Experiment with algebraic integers
@Rainwater: I did not know 3blue1brown, but now that I have watched a few videos from him, I must sa ... |
25-2-2024 at 12:39
by: woelen |
Experiment with algebraic integers
@clearly_not_atara: The properties you give indeed are true, but things are even better.
Any monic ... |
23-2-2024 at 14:04
by: woelen |
Multiple bad experiences with AliExpress
Another bad experience from AliExpress. KI, which is mixed with something else. The "KI" I ordered i ... |
21-2-2024 at 13:43
by: woelen |
Experiment with algebraic integers
In the following three pictures I made heat plots of
1) All zeros of all reducible polynomials of d ... |
21-2-2024 at 13:29
by: woelen |
Laboratoriumdiscounter.nl ratings
Methylamine is not such a good reductor, actually, it's only weeakly reducing. Even dichromate is no ... |
15-2-2024 at 00:30
by: woelen |
How hazardous is fluorine chemistry?
I personally have done a few experiments with 48% HF, but I did not feel comfortable at all while wo ... |
14-2-2024 at 11:46
by: woelen |
Experiment with algebraic integers
I expect all of you know the concept of integer numbers (..., -3, -2, -1, 0, 1, 2, 3, 4, ....) and r ... |
6-2-2024 at 12:52
by: woelen |
Manganese cleanup and purplish smokes
It indeed is quite remarkable that H2O2 can act as a reductor, and also can act as an oxidizer. I th ... |
31-1-2024 at 00:40
by: woelen |
Preparation of Hydrogen Cyanide
Beautiful and very interesting set of experiments with the HCN. The experiment with the liquid evapo ... |
25-1-2024 at 00:41
by: woelen |
Preparation of Hydrogen Cyanide
Beautiful write-up.
Interesting to see that you can isolate such pure HCN from a an innocuous che ... |
23-1-2024 at 00:46
by: woelen |
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