Search |
[Next Page] |
Why has my solution of potassium permanganate and copper sulfate turned orange? I think that yopur permanganate is reduced to MnO2 and that the latter is very finely dispersed in t ... |
16-12-2020 at 00:30 by: woelen |
gas apparatus - inspirations for reactions That's a very nice piece of glassware. A nice reaction (not for practical purposes, but it makes a b ... |
16-12-2020 at 00:23 by: woelen |
Reaction between ethylenediamine and nitrite? I indeed can try to make a solution without high concentrations of perchlorate and potassium ions, b ... |
16-12-2020 at 00:17 by: woelen |
Reaction between ethylenediamine and nitrite? I also think that the red compound is not an [Ni(en)3](2+) complex. It must have nitrite coordinated ... |
16-12-2020 at 00:05 by: woelen |
Reaction between ethylenediamine and nitrite? Another interesting observation.
I also did the experiment with KNO2, solution of Ni(ClO4)2 and e ... |
15-12-2020 at 12:30 by: woelen |
Pink Lead Azide... What happened? Might be traces of copper azide. Copper azide is dark red/brown. I once made that by mixing a soluti ... |
15-12-2020 at 00:04 by: woelen |
Copper hydroxide exposure Copper is not particularly toxic for humans and the most toxic route is by ingestion. Inhaled insolu ... |
14-12-2020 at 13:07 by: woelen |
Reaction between ethylenediamine and nitrite? I have done some more experimenting with the nitrite/(en)/Ni system. I found that the colors strongl ... |
14-12-2020 at 02:06 by: woelen |
Microporous zinc + photo You collected quite a lot of this powder! I always thought that the black remains are carbon impurit ... |
12-12-2020 at 13:23 by: woelen |
Cl2 liquefication Very good result. This makes a beautiful element collection item, especially if you can get the tube ... |
11-12-2020 at 13:37 by: woelen |
Reaction between ethylenediamine and nitrite? I prepared solution of Ni(ClO4)2 in water. There may be slight excess of HClO4, but now much. This s ... |
11-12-2020 at 11:10 by: woelen |
The insanity that is OHS Things have changed so much over the last 40 years.
At high school, I did precipitation reactions ... |
11-12-2020 at 00:38 by: woelen |
Colorful copper compounds I've made so far Hexaamminenickel(II) also can be kept indefinitely in a completely sealed vessel, but when not seale ... |
11-12-2020 at 00:14 by: woelen |
Colorful copper compounds I've made so far My experience with tetramminecopper(II) is that it can be kept indefinitely, but it must be stored i ... |
9-12-2020 at 23:56 by: woelen |
2020 Secret Santa [tell everyone how it went] I received a nice parcel from Poland! My secret santa has done his best to make a nice present! It i ... |
9-12-2020 at 07:16 by: woelen |
Reaction between ethylenediamine and nitrite? Interesting stuff. I have (dien) as well, which is bulkier than (en) and tridentate. Maybe that give ... |
8-12-2020 at 23:54 by: woelen |
Potassium Trioxalatochromate III Very interesting! I have sodium hydrogen succinate and had no real application for it. Now I know wh ... |
7-12-2020 at 07:52 by: woelen |
Gunpowder (Potassium Chlorate) from Bleach After reading this thread I have one comment: Do not use the term "gunpowder" for a mix of KClO3 and ... |
6-12-2020 at 02:12 by: woelen |
Potassium triiodoplumbate - K[PbI3] Interesting experiment, which I will try myself. I have Pb(NO3)2 and KI, so should be easy for me to ... |
4-12-2020 at 03:58 by: woelen |
Potassium triiodoplumbate - K[PbI3] Interesting, this one also is new to me. I know of the mercury variation: HgI2 + 2I(-) --> HgI4(2 ... |
4-12-2020 at 02:07 by: woelen |
Mn2O7 to manganyl cation I absolutely do not believe that Sulaiman's solution contains any manganese(V). The blue manganese(V ... |
3-12-2020 at 09:38 by: woelen |
Mn2O7 to manganyl cation This may be interesting: https://www.sciencedirect.com/science/article/abs/pii/0022190261802029
I ... |
3-12-2020 at 01:49 by: woelen |
Heating Potassium perchlorate solution At atmospheric pressure you'll get dry KClO4 a few tens of degrees above 100 C. If you continue heat ... |
2-12-2020 at 07:25 by: woelen |
Disposal of Sodium Cyanide If you really want to destroy it, just dissolve it in 200 ml of water with a teaspoon of NaOH added ... |
2-12-2020 at 00:35 by: woelen |
CuS isn't actually copper(II) sulfide @j_sum1, DraconicAcid: I know the dilemma between educational value and realistic value. I actually ... |
2-12-2020 at 00:27 by: woelen |
[Next Page] |