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Interesting experiments with light?
Fluorescence offers some interesting options. Europium salts fluoresce red under UV. Using a 405nm l ...
21-4-2018 at 11:33
by: nezza
Processing BaSO4 to either carbonate or sulfide
Boiling BaSO4 with Sodium or potassium carbonate does indeed work. I have done this in the past. You ...
16-2-2018 at 12:52
by: nezza
monobasic and dibasic of sodium phosphate
Phosphoric is a tribasic acid and forms 3 sodium salts as has been explained earlier. Th pKa of the ...
4-1-2018 at 07:41
by: nezza
Sodium azide toxicity
It's an interesting question and thanks for the answers. At work we used cyanides and azides frequen ...
29-12-2017 at 02:21
by: nezza
What on earth is my "Pyridine"?!
If it smells remotely pleasant it is not pyridine. Pyridine has a revolting faintly ammoniacal smell ...
12-12-2017 at 07:25
by: nezza
Gentle rust removal w/o nasty residues
Coka Cola apparently works quite well for rust removal. Just leave the object in overninght. It also ...
8-12-2017 at 02:50
by: nezza
Cobalt compounds
I've messed about with a few cobalt compounds in the past. Here are a couple of pictures of cobalt c ...
4-12-2017 at 08:38
by: nezza
Chemistry Video Software.
Movie Maker (Up to Windows 7) is a decent, easy program to use for titling and cutting videos. If yo ...
23-11-2017 at 02:30
by: nezza
The lead salts preparation thread!
Here's a sample of Ammonium chloroplumbate I recently had a go at making. The procedure :-
1. Disso ...
23-11-2017 at 02:25
by: nezza
Unidentified gunk on sodium in white spirit
Alkali metals are just such fun to store long term. I have small samples of Lithium, Sodium and Pota ...
10-11-2017 at 04:42
by: nezza
Locating Nitric acid
Quote: Originally posted by NEMO-Chemistry
Wait until next year, in the UK sulphuric acid will be ...
12-10-2017 at 05:28
by: nezza
Produce trithioacetone
I would recommend against it. It is supposed to be one of the most penetrating and evil smelling sub ...
9-10-2017 at 01:18
by: nezza
Produce iron dust
Iron dust ?. One way of making pyrophoric iron powder is to heat ferrous oxalate in the absence of a ...
7-10-2017 at 01:15
by: nezza
'Invisible sodium' effect using nitric acid
I'm still convinced it's sodium oxide/hydroxide jumping about on the surface due to the leidenfrost ...
7-10-2017 at 01:11
by: nezza
Phenol
Thanks folks.
1-10-2017 at 00:49
by: nezza
Phenol
Is there a relatively easy way to make Phenol C6H5OH as it seems very difficult to source these days ...
30-9-2017 at 02:17
by: nezza
Mysterious compound
Mix some of the solution 50:50 with acetone. Adding cobalt(II) to this solution should give a bright ...
13-9-2017 at 23:46
by: nezza
How good is this way to make alum?
In the old days when chemistry was taught at school this was an occasional exam question on how to m ...
12-9-2017 at 05:59
by: nezza
Mysterious compound
It sounds like potassium thiocyanate. It is quite hygroscopic and old bottles will have liquid in th ...
9-9-2017 at 03:36
by: nezza
Thermal Decomposition of TCCA
And of course NCl3 is another really benign agent. It explodes if you look at it wrong and has maime ...
3-9-2017 at 00:54
by: nezza
White Phosphorus video
Yes. I was intrigued by the way the speckles appear. I dried the phosphorus with methanol and carefu ...
3-9-2017 at 00:51
by: nezza
White Phosphorus video
Yup. In the UK I had to wait for a reasonably warm evening (mid teens deg C) because in the winter i ...
1-9-2017 at 01:31
by: nezza
Can sodium metal really be transparent ?
My take on this is that the darkening "metal" is sodium with an increasing amount of oxide/hydroxide ...
31-8-2017 at 01:13
by: nezza
White Phosphorus video
I have added a video of white phosphorus glowing in the dark. This video is about 50 minutes of real ...
26-8-2017 at 13:55
by: nezza
I want to hear your favorite chemistry demonstrations
Some simple precipitation reactions. Mixing colourless substances to form a coloured precipitate or ...
17-8-2017 at 01:07
by: nezza
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