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HCl gas generator for making (NH4)2[MoOCl5]
Are you sure it is the molybdate, which oxidizes the iodide? Could it be oxygen from air? Maybe you ... |
24-2-2020 at 00:11
by: woelen |
Ceric Ammonium Sulphate: attempted preparation
Ceric sulfate and its double salts are not insoluble, they dissolve in water to some extent. They gi ... |
21-2-2020 at 12:30
by: woelen |
Reducing sodium molybdate by nascent hydrogen
I obtained my Mo-powder several years ago, indeed from eBay, but I do not know the seller anymore. I ... |
21-2-2020 at 12:28
by: woelen |
Ammonium Persulfate etch waste --> CuCl2
The white material you obtained from the HCl indeed is NH4Cl. Just filter it and keep the green liqu ... |
21-2-2020 at 12:26
by: woelen |
Organic Hypochlorites
Under certain conditions, you can make hypochlorite esters, instead of ketones (or aldehydes).
If ... |
19-2-2020 at 08:50
by: woelen |
An assortment of fluorescent pyridine copper iodides
I have done this experiment with pyridine and with morpholine. I could obtain yellow, green and oran ... |
19-2-2020 at 08:36
by: woelen |
Organic Hypochlorites
I just tried making the isopropyl ester, but apparently this is much more unstable than the other es ... |
18-2-2020 at 14:46
by: woelen |
Reducing sodium molybdate by nascent hydrogen
I tried the experiment with HNO3 again.
I took 2 ml of room temperature HNO3 (concentration not k ... |
18-2-2020 at 13:56
by: woelen |
What is generally legal or illegal in Germany/EU?
The license I am talking about is a license for private persons, not for businesses.
The explosiv ... |
18-2-2020 at 11:29
by: woelen |
Marsh test : classical test for arsenic detection
Nice experiment and nice demo.
I have one remark. Assure that sufficient hydrogen gas is produce ... |
18-2-2020 at 11:18
by: woelen |
Aerial oxidation of ferrous ions
I have bad experience with this. I purchased very nice and pure mint-green crystalline FeSO4.7H2O. S ... |
17-2-2020 at 23:26
by: woelen |
Chlorate or perchlorate?
The yellow gas will be ClO2. That gas has a very intense color and totally overwhelms the faint gree ... |
16-2-2020 at 23:50
by: woelen |
Reducing sodium molybdate by nascent hydrogen
[rquote=631162&tid=150706&author=Bedlasky]The precipitate from dissolving molybdenum in HNO3 ... |
16-2-2020 at 23:43
by: woelen |
Site Backup
[rquote=631129&tid=12051&author=fusso]So when will we move to new forum software????? [/ ... |
16-2-2020 at 11:48
by: woelen |
Chlorate or perchlorate?
Another test for chlorate is to add a small spatula full of the solid to conc. HCl (take 1 ml of con ... |
16-2-2020 at 11:43
by: woelen |
Reducing sodium molybdate by nascent hydrogen
Very interesting, especially your scheme of all oxidation states.
I myself have done experiments ... |
16-2-2020 at 11:32
by: woelen |
Strontium nitrate from strontium carbonate
You should be a little more precise in your usage of chemical symbols and formulae. That makes your ... |
14-2-2020 at 02:40
by: woelen |
What is generally legal or illegal in Germany/EU?
@Bedlasky: After Februrary 2021 you still can buy battery acid (IIRC this is 35-40% acid), but you n ... |
14-2-2020 at 00:40
by: woelen |
Strontium nitrate from strontium carbonate
Are you sure that the material in the cold pack is ammonium nitrate? In many countries, this is repl ... |
14-2-2020 at 00:15
by: woelen |
Report on making Neodymium iodide
The hydrated salt (the 9-hydrate) is pink. Very much like the pictures you made.
Here is a pictur ... |
13-2-2020 at 23:47
by: woelen |
When prudent practice works
Oh yes, bromine escapes from any container, which is not completely sealed glass. Even a minor crack ... |
13-2-2020 at 03:02
by: woelen |
What is generally legal or illegal in Germany/EU?
You should read the regulations more precisely. Fireworks in the Netherlands indeed contain perchlor ... |
13-2-2020 at 01:09
by: woelen |
Introducing new member (Denmark)
I indeed live in the Netherlands. In the past, I actually lived in Denmark for a while (I worked in ... |
13-2-2020 at 00:32
by: woelen |
Experiments with concentrated nitric acid
For small demo-experiments, which demonstrate its properties you could do the following:
- Take 1 m ... |
12-2-2020 at 23:45
by: woelen |
Strontium nitrate from strontium carbonate
In my previous reply I assumed that you don't want to use (precious) nitric acid for this purpose, h ... |
12-2-2020 at 06:11
by: woelen |
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