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Colours
Yes Samarium III is virtually colourless, but in a reducing environment the Sm II ion can exist. It ... |
6-7-2014 at 07:35
by: nezza |
Colours
As a keen photographer & chemist I have always been interested in pretty colours so have been sy ... |
6-7-2014 at 03:00
by: nezza |
Thulium (III) color
This post piqued my interest. I have a set of Lanthanides bough a few years ago when they were a bit ... |
29-6-2014 at 10:26
by: nezza |
Cobalt complex with hydrogen peroxide and EDTA?
I have made quite a few cobalt complexes. Cobalt II is stable in acid solution but tends to oxidise ... |
18-6-2014 at 11:04
by: nezza |
Praseodymium acetate
Purely a guess, but using sulphates as a starting point is probably not ideal for lanthanides. I sus ... |
17-6-2014 at 00:09
by: nezza |
Infra red blocking chemicals
The pictures were taken by daylight (overcast). The infra red image with a 720nm filter. Both Canon ... |
30-5-2014 at 11:31
by: nezza |
Infra red blocking chemicals
A while ago someone posted asking for information on chemicals which block infra red. I have been lo ... |
30-5-2014 at 06:55
by: nezza |
New Ethanol Source in UK
It sounds like what was called "Rectified spirits". The reason for the high price is because it is n ... |
13-5-2014 at 23:24
by: nezza |
Complex ions of copper
The ethylenediamine perchlorate complex is an interesting dark purple compound which explodes errati ... |
3-5-2014 at 23:45
by: nezza |
"invisible metal"
Video of sodium reacting with water leaving red-hot ball of oxide? on surface.
[file]31118[/file ... |
28-4-2014 at 11:01
by: nezza |
"invisible metal"
I have observed a clear ball floating on top of the water after sodium or potassium have reacted wit ... |
27-4-2014 at 10:03
by: nezza |
how to make "low pH but no sour" solutions
If you want to change the taste try using miraculin or miracle berry fruit. You eat that and swill i ... |
27-4-2014 at 10:00
by: nezza |
calculating pH of salts of polyprotonic acids
Distilled water nearly always gives an acidic pH due to dissolved CO2 which reacts as a weak acid. |
18-4-2014 at 00:24
by: nezza |
Experiments to do with potassium tetraborate?
Alkali tetraborates are used in the borax bead test for coloured metal cations. Borax is taken up on ... |
18-4-2014 at 00:03
by: nezza |
Shelf Life of Chemicals?
Chemicals which do not keep well tend to be those which react with water and reducing agents. Chemic ... |
31-3-2014 at 10:54
by: nezza |
Copper Carbonate mysteriousness
Copper very easily forms basic carbonates and precipitation with sodium carbonate will always form s ... |
31-3-2014 at 10:47
by: nezza |
Magnesium acetate?
The classic test for magnesium is magneson or magnesonII dye. These are azo dyes which are a purplis ... |
31-3-2014 at 10:43
by: nezza |
Whats the most dangerous chemical you've ever synthesized?
The 3 most dangerous syntheses I've tried and succeeded at :-
Synthesis and ampouling of NaK. (Ve ... |
22-3-2014 at 05:06
by: nezza |
Pure Sodium Metal
I have attached a video of the preparation and pictures of the sodium thus prepared. Do not try this ... |
22-3-2014 at 04:57
by: nezza |
Pure Sodium Metal
HgDinis25 I have attached a pic from an old textbook (Theoretical and Inorganic Chemistry) which sta ... |
19-3-2014 at 14:30
by: nezza |
Pure Sodium Metal
If you can get hold of it sodium can be prepared by carefully heating small quantities of sodium azi ... |
18-3-2014 at 14:26
by: nezza |
Favorite element
Have to go with Caesium or Phosphorus.
Caesium - Commercial samples are a lovely pale gold colour ... |
18-3-2014 at 14:17
by: nezza |
Cesium Hydroxide Monohydrate from 50% solution?
What are you using as an evaporation vessel ?. My information is that CsOH dissolves glass so if it ... |
27-2-2014 at 06:47
by: nezza |
Addition of sodium bromide to copper sulfate solution
I suspect the colours are due to different copper complexes.
In dilute solution the hexaquo ion C ... |
27-2-2014 at 06:45
by: nezza |
Pictures of Element collections
Zyklonb. Yes that is white phosphorus next to the red.
MrHomeScientist. That is just some tissue ... |
23-2-2014 at 04:24
by: nezza |
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