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Ceric ammonium nitrate- uses and synthesis
Keep in mind that cerium exists in two oxidation states. Cerium(III) is colorless, cerium(IV) is yel ...
28-2-2020 at 04:22
by: woelen
Fusion breakthrough claimed
Interesting read, but it raises some questions. Indeed, how can a laser magnetically stabilize a pla ...
28-2-2020 at 00:31
by: woelen
Ceric Manganese Nitrate
This can be anything. It can be your double salt, but it also can be just a mix of manganous nitrate ...
28-2-2020 at 00:12
by: woelen
Need to get water out of denatured ethanol
Sodium metal should not be used, it reacts with ethanol.
You can use anhydrous MgSO4 (which can be ...
26-2-2020 at 23:48
by: woelen
Marsh test : classical test for arsenic detection
What you quote might be true, but then the bottle must have contained a lot of phosphate/phosphoric ...
26-2-2020 at 23:42
by: woelen
HCl gas generator for making (NH4)2[MoOCl5]
Interesting result and good experimentation. Nice to see your reasoning behind the experiments and h ...
26-2-2020 at 23:25
by: woelen
Everyday Chemistry (provisional)
The thiourea does not reverse any potentials, it shifts redox potentials. In general, nearly all coo ...
26-2-2020 at 05:31
by: woelen
KClO3 cell continuous production
Sodium chromate definitely is hexavalent chromium! CHromate (yellow) and dichromate (orange), both a ...
25-2-2020 at 23:55
by: woelen
KClO4 and KClO3 in EU
[rquote=631600&tid=154935&author=phlogiston][...]
IIRC only mixtures containing chlorates a ...
25-2-2020 at 23:36
by: woelen
Everyday Chemistry (provisional)
Concentrated ammonia only dissolves copper if also oxygen is present. The oxygen oxidizes the copper ...
25-2-2020 at 23:34
by: woelen
Marsh test : classical test for arsenic detection
That would be an interesting test. Just put a little of the acid in a test tube and add some zinc me ...
25-2-2020 at 23:27
by: woelen
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?????:mad:[/ ...
16-2-2020 at 11:48
by: woelen
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