| Search |
| [Next Page] |
red P in EU
Well, considering you have 1kg of the stuff and it hasn't ignited at all until now, it would be pret ... |
19-1-2019 at 07:33
by: CobaltChloride |
Hydrogen peroxide maximum safe concentration
If you do attempt Felab's procedure, please be careful as the highly concentrated H2O2 might explode ... |
19-1-2019 at 06:33
by: CobaltChloride |
red P in EU
Has anyone tested whether the red P sold by limac contains significant amounts of white P? I want to ... |
19-1-2019 at 04:17
by: CobaltChloride |
Chemical supplier that ships overseas
The attitude post offices have towards chemicals ordered from other countries varies widely by natio ... |
17-1-2019 at 14:42
by: CobaltChloride |
Preparation of SnCl2 dihydrate (Stannous Chloride)
I was able to make this salt by a much more simple procedure.
After dissolving the tin in an exc ... |
2-1-2019 at 12:17
by: CobaltChloride |
K2Cr2O7 from (NH4)2Cr2O7
Easiest way would be to make saturated solutions of KCl and ammonium dichromate and then combine the ... |
12-12-2018 at 06:17
by: CobaltChloride |
When Chemistry Goes Wrong
Wait, even concentrated NaOH eats PTFE? AFAIK, only molten very reactive metals (like sodium) react ... |
3-11-2018 at 09:46
by: CobaltChloride |
Loose ground glass?
Did you grease the joints with silicone grease? This usually makes them much less susceptible to lea ... |
31-10-2018 at 23:00
by: CobaltChloride |
Lab equipment
It is way too weak at 300W. You're much better of buying second hand good hotplates stirrers from br ... |
31-10-2018 at 22:57
by: CobaltChloride |
Help Identifying Reaction
That's most certainly it. I know the color acetone tends to get after prolonged contact with sodium ... |
29-10-2018 at 09:46
by: CobaltChloride |
Fitting a Ground Glass Joint to a Steel Plate
In this video, you can see how NileRed was able to make an air-tight connection between the paint ca ... |
27-10-2018 at 10:06
by: CobaltChloride |
Bad days in the lab or with glassware?
I was recrystallizing some benzamide (about 15g) from toluene and I accidentally knocked over the be ... |
26-10-2018 at 11:51
by: CobaltChloride |
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 |
| [Next Page] |
