Sciencemadness Discussion Board
Not logged in [Login ]
Go To Bottom

Search
[Next Page]
Thionyl chloride from batteries
Maybe some SOCl2 is reduced by lithium metal in the opened battery? When SOCl2 comes in contact with ...
15-11-2019 at 08:14
by: woelen
Discord
It might be nice to have such a thing, but doesn't it lead to the loss of interesting info? Only a f ...
14-11-2019 at 00:36
by: woelen
Thionyl chloride from batteries
SOCl2 definitely does not smell like rotten eggs. It has a smell of burning sulphur, or of burning m ...
14-11-2019 at 00:28
by: woelen
Chemical Stock list in my lab
I think teodor has Pb(NO3)2 with quite a lot of adhering acid. My first sample of home made Pb(NO3)2 ...
12-11-2019 at 10:58
by: woelen
About the rxn between KMnO4 and H2O2
This indeed can be experimentally verified, using special isotopes of oxygen.

One option is to us ...
12-11-2019 at 07:05
by: woelen
Chemical Stock list in my lab
[rquote=626026&tid=154325&author=teodor][...]
2. This stuff is very volatile, after 55C the ...
12-11-2019 at 06:47
by: woelen
Nitrite in acidic solution
A solution of acidified nitrite can be yellow, due to dissolved NO2, especially if there is a large ...
12-11-2019 at 06:37
by: woelen
How YouTube sees content value (no, we are not valued)
I also have no need to make money with my chemistry hobby. For this reason I decided to put my entir ...
12-11-2019 at 00:05
by: woelen
Chemical Stock list in my lab
This is a nice set of chemicals. You also have a few really hard to find ones, like As2O3 and HgCl2. ...
11-11-2019 at 23:42
by: woelen
Distilled, De-ionised or Tap water?
I use distilled water for nearly all experiments I do. Rinsing and cleaning I do with tap water, in ...
11-11-2019 at 23:36
by: woelen
H2SO4 on an extreme budget?
Carbon rods made from charcoal cannot be used. They do not conduct electricity. You really need to u ...
8-11-2019 at 01:34
by: woelen
Sodium Borohydride 98% granules - EU - 150 EUR/1kg
Not if the material is in a glass bottle with a somewhat narrow open end. I have to shatter the glas ...
8-11-2019 at 01:31
by: woelen
Sodium Borohydride 98% granules - EU - 150 EUR/1kg
Any idea how well this NaBH4 will keep? I purchased 50 grams of NaHBH4 some years ago (a fine powder ...
8-11-2019 at 00:01
by: woelen
What's the minimum concentration for h2so4 to be oxidising?
To my experience, sulphuric acid starts to become somewhat oxidizing at a concentration of 60 to 65% ...
6-11-2019 at 07:36
by: woelen
How amateur chemistry would look like nowadays if the internet isn't a thing?
[rquote=625420&tid=154268&author=G-Coupled][rquote=625409&tid=154268&author=12thealc ...
4-11-2019 at 00:13
by: woelen
How amateur chemistry would look like nowadays if the internet isn't a thing?
It's very difficult to give meaningful answers to these questions. The presence of the internet has ...
2-11-2019 at 10:04
by: woelen
Mercury/HNO3 incident
Don't you have a municipal waste processing facility, where you can bring small chemical waste?

I ...
1-11-2019 at 00:47
by: woelen
SO2 from Na2SO3
Making bisulfite is easy.

Add half concentrated H2SO4 to Na2SO3 and gently heat. Lead the produce ...
30-10-2019 at 00:58
by: woelen
The colour of iron(III)acetate solution in dilute acetic acid
I expect that the effect, mentioned by AJKOER is only marginal. The amount of UV-radiation in the ar ...
29-10-2019 at 04:39
by: woelen
The colour of iron(III)acetate solution in dilute acetic acid
[Fe(H2O)6](3+) is nearly colorless. A solution of this is very pale violet, but in concentrations of ...
25-10-2019 at 10:36
by: woelen
making bromine water
PCl5 and SO2Cl2 are the nastiest of the entire set. They are extremely corrosive and it is nearly im ...
23-10-2019 at 02:55
by: woelen
making bromine water
Here follows a picture of most of my ampouled nasties. These make nice display samples, I do not use ...
22-10-2019 at 10:09
by: woelen
Obtaining pure hydrochloric acid
With the latter reaction, AJKOER is right. HOCl is a VERY weak acid, and even carbonic acid (from CO ...
18-10-2019 at 14:18
by: woelen
Obtaining pure hydrochloric acid
@AJKOER: Many of the reactions and pathways you describe may occur in trace amounts, or transiently, ...
17-10-2019 at 23:02
by: woelen
Mass and Weight
The good news is that when you use a scale of given accuracy you can have much better accuracy in yo ...
16-10-2019 at 05:56
by: woelen
[Next Page]

  Go To Top