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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
Crystallisation Question
The idea of crystallisation to purify materials is to get the most product out of the solution. Whil ...
14-7-2017 at 02:35
by: nezza
Drying Ethanol
You can't dry ethanol with sodium. It reacts to form sodium ethoxide and hydrogen. The problem with ...
11-7-2017 at 06:34
by: nezza
Cobalt Oxalate Precipitation
The precipitation is slow so from dilute solutions you may just have to wait a while.
8-7-2017 at 06:20
by: nezza
Cobalt Oxalate Precipitation
I have a few observations on Cobalt Oxalate.

Adding stoichiometric amounts of Oxalic acid to Coba ...
8-7-2017 at 04:02
by: nezza
Testing manganese metal
The usual tests for the presence of Manganese (as Mn2+) are to acidify the solution with dilute sulp ...
4-7-2017 at 07:10
by: nezza
Reaction of KMnO4 with Iodine Tincture
In alkaline solution iodide does reduce permanganate to manganate. If permanganate is added dropwise ...
29-6-2017 at 01:47
by: nezza
Cobalt Oxalate complexes
The cobalt(III) carbonate complex is easy enough.
Mix cold sodium bicarbonate solution with dilute ...
28-6-2017 at 02:36
by: nezza
Cobalt Oxalate complexes
I have made some Cobalt(III) complexes before including the carbonate which is bright green. I have ...
25-6-2017 at 22:53
by: nezza
QUIZ: Can you name all the elements of the periodic table starting with 'C'?
12/12. Copernicium took a while to remember.
15-6-2017 at 23:38
by: nezza
cleaning vanadium
Thanks Guys. I liked the idea of using an organic acid as most are slight reducing agents and will n ...
29-5-2017 at 05:44
by: nezza
cleaning vanadium
Thanks for that. I'll give it a go with Nitric acid. I note in the video he says nitric acid will di ...
28-5-2017 at 01:20
by: nezza
cleaning vanadium
I have some nice vanadium crystals as part of my element collection. I did not take any particular c ...
27-5-2017 at 23:37
by: nezza
Mixing sodium hydroxide and DL lactic acid
Lactic acid is a weak acid. Adding Sodium hydroxide will neutralise the acid and form sodium and lac ...
23-5-2017 at 05:55
by: nezza
Preparation of Copper (I) oxide from copper?
If you want a nice easy reducing sugar try honey - it is nearly pure fructose.
18-5-2017 at 01:33
by: nezza
Preparation of Copper (I) oxide from copper?
Yup. Dissolve the copper to give a solution of copper (II) ions. Add tartrate and Alkali until you g ...
16-5-2017 at 05:59
by: nezza
Labware and chemicals for Belgium and Europe
I've just ordered a few element samples from Onyxmet. Their prices seem pretty reasonable. I'll let ...
5-5-2017 at 01:36
by: nezza
chlorate/nitrate test
Dissolve some of the unknown in water and add potassium chloride solution. (May need to be moderatel ...
4-5-2017 at 01:21
by: nezza
Alternative hobbies that appeal to those with interest in chemistry
Photography is my other main hobby with golf and badminton for sports. I am interested in just about ...
28-4-2017 at 23:43
by: nezza
What in the world happened
I have had the same experience with acetic anhydride and ethanol. Adding acid to the mixture causes ...
9-4-2017 at 23:39
by: nezza
Sensitive ammonium compounds and synthesis
NitrIte and ammonium ion is a classic means of producing nitrogen gas. Ammonium nitrate on heating g ...
7-4-2017 at 23:16
by: nezza
Freezing ethanol with liquid carbon dioxide?
Dry ice and acetone does get viscous and reaches a very low temperature. Dropping warm water into th ...
6-4-2017 at 02:57
by: nezza
Molten Europium
Thanks for the info on Europium (II) colours. Do you have a source ?.
In any case it explains my ob ...
10-3-2017 at 00:44
by: nezza
A quick test.
Spot on. I had a sample of Europium in my element collection which had got a heavy coating of oxide/ ...
6-3-2017 at 00:36
by: nezza
A quick test.
Cold water. The gas released is hydrogen.
5-3-2017 at 11:23
by: nezza
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