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Why are the words pnictogen and chalcogen rarely used?
I'd guess that a major reason is that the chemical properties of the halogens are very similar, whil ...
21-10-2018 at 16:27
by: CobaltChloride
How hazardous is mercury droplets?
[rquote=545494&tid=99039&author=Hendrik]The situation you described doesn't seem to be reall ...
21-10-2018 at 10:33
by: CobaltChloride
Safe disposal of wastes
Compared to countries like the UK, it isn't chemophobic. I can get, or easily make most reagents I w ...
20-10-2018 at 07:42
by: CobaltChloride
Safe disposal of wastes
I generally agree with your view, but I have to say that amateur chemistry is very different from th ...
20-10-2018 at 06:39
by: CobaltChloride
HF + HNO3
@Tsjerk: That isn't really a good comparison. Red fuming nitric acid would very rapidly and vigorous ...
19-10-2018 at 10:53
by: CobaltChloride
HF + HNO3
Nothing bad would happen if you just combine the fluoride and nitric acid (as long as you add just 0 ...
19-10-2018 at 06:53
by: CobaltChloride
HF + HNO3
Theoretically, just adding the salt should work, but I doubt it is soluble in fuming nitric acid. Th ...
19-10-2018 at 06:13
by: CobaltChloride
Rooto vs Liquid Fire
In Europe they sell Cleamen 420 drain cleaner. The MSDS lists the only ingredient being 98% sulfuric ...
2-10-2018 at 11:06
by: CobaltChloride
Cleaning glassware and other equipment
I found a nice way of cleaning oxidized stainless steel crucibles. The oxide coating is calcined and ...
28-9-2018 at 07:59
by: CobaltChloride
Sodium Permanganate
I wouldn't suggest using a AA battery. Get the cheapest and biggest battery you can find. Those cont ...
10-9-2018 at 22:02
by: CobaltChloride
Sodium Permanganate
That method isn't very good as illustrated in another thread (https://www.sciencemadness.org/whisper ...
10-9-2018 at 06:21
by: CobaltChloride
Cleaning glassware and other equipment
I never saw any wash bottle made out of PP. All the wash bottles I saw were made of LDPE which is th ...
10-9-2018 at 01:37
by: CobaltChloride
Sodium Permanganate
The specific info I presented there is in part from Nurdrage's video on making KMnO4 where he says t ...
10-9-2018 at 01:28
by: CobaltChloride
Sodium Permanganate
This will simply not work even if you melt the reagents. In order to achieve a decent yield of manga ...
9-9-2018 at 21:19
by: CobaltChloride
We should be using metric/SI prefixes on currencies
In some languages, they already use SI prefixes. For example, in French you can say 32 KEUR (kilo-eu ...
9-9-2018 at 10:00
by: CobaltChloride
Last chemical order?
Isn't glacial acetic acid sold at beekeeping stores where you live? In almost every bigger town in R ...
8-9-2018 at 00:59
by: CobaltChloride
Benzoic Acid Synthesis options
Using oxone (chlorine free pool disinfectant) might work, although I'm not 100% sure it will. It is ...
6-9-2018 at 07:58
by: CobaltChloride
Diethyl ether on pulic transport
I don't understand how you'd transport it though, as you don't live in Siberia and it isn't even win ...
5-9-2018 at 14:22
by: CobaltChloride
Stupid laws in the European Union.
I'm almost sure you can find Cleamen 420 at Praktiker, Leroy Merlin or other such hardware stores in ...
5-9-2018 at 07:59
by: CobaltChloride
Stupid laws in the European Union.
The 7 chemicals woelen is talking about are hydrogen peroxide above 12%, nitric acid above 3%, sodiu ...
4-9-2018 at 11:35
by: CobaltChloride
Diethyl ether on pulic transport
Please be careful with what plastic you use. The plastic might not be resistant to the ether and mig ...
4-9-2018 at 05:10
by: CobaltChloride
Stupid laws in the European Union.
Here in Romania, there are only 2 laws that I despise. Firstly, there is the one that bans the sale ...
3-9-2018 at 12:09
by: CobaltChloride
Safe to buy from China?
I bought all my ground glass glassware from deschem on eBay (Chinese store). I didn't have any probl ...
1-9-2018 at 09:16
by: CobaltChloride
Cheap Potassium Iodide
I bought some KI from such a seller on eBay and the chemical didn't have any problems. I bought my 1 ...
31-8-2018 at 07:21
by: CobaltChloride
Nitric Acid From Oxalic Acid
[rquote=531647&tid=87036&author=j_sum1][rquote=531643&tid=87036&author=CobaltChlorid ...
26-8-2018 at 09:38
by: CobaltChloride
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