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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 |
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