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Looking over the border: EU-Regulations
Considering that the concentration of sulphuric acid in lead-acid batteries is around 30% (w/w), a 1 ... |
24-5-2019 at 15:34
by: phlogiston |
Sulfur experiment ideas
Zn+S is spectactular, and also allows you to make the point that sulfur can act as an oxidiser much ... |
23-5-2019 at 07:33
by: phlogiston |
Sulfur experiment ideas
[rquote=613170&tid=150205&author=Chemi Pharma]Just to prove my point of view, against the fa ... |
21-5-2019 at 06:35
by: phlogiston |
Sulfur experiment ideas
[rquote=613109&tid=150205&author=Chemi Pharma]
You're absolutely wrong!
I Challenge you ... |
20-5-2019 at 12:31
by: phlogiston |
Sulfur experiment ideas
[rquote=612946&tid=150205&author=Chemi Pharma]I liked the idea of make Gunpowder. I did that ... |
19-5-2019 at 15:49
by: phlogiston |
Piranha solution from sodium percarbonate
[rquote=612863&tid=149964&author=Dragonjack12]Sadly you will probably just get sodium sulfat ... |
19-5-2019 at 15:43
by: phlogiston |
Help wanted ... calibrating a 2kg F1 calibration weight.
For very accurate weights, washers, nuts and bolts are not very suitable because they can easily bec ... |
17-5-2019 at 00:50
by: phlogiston |
Help wanted ... calibrating a 2kg F1 calibration weight.
I'd be happy to measure it to 10 mg accuracy on a scale that is traceable to a primary standards, an ... |
15-5-2019 at 12:24
by: phlogiston |
Cleaning Marble
We have a rust-removal product here that I found quite effective and is safe to use on marble.
http ... |
13-5-2019 at 04:52
by: phlogiston |
How to kill or at least repel or block ants?
Dishwasher soap blocks the ants we have here quite well. |
6-5-2019 at 10:36
by: phlogiston |
Identification of a mystery metal
I remember a thread where someone found a mystery metal rod, which turned out to be actual platinum. ... |
4-5-2019 at 12:26
by: phlogiston |
Future-gazing: available now, restricted tomorrow?
I predict that there will not be anything OTC containing cadmium in 10 years time.
Americium-contai ... |
26-4-2019 at 04:30
by: phlogiston |
First yield of KClO3 from my cell
A porcelain crucible is often suggested.
You'll mainly want to make sure that the melt is free from ... |
26-4-2019 at 04:25
by: phlogiston |
In search of fading pigments
rhodopsin
methylene blue
You can also combine a radical-generating photoiniatior (eg benzoylpero ... |
23-4-2019 at 05:38
by: phlogiston |
The Colors of Uranium
Sulfuric acid is used commercially to leach uranium from pitchblende and other ores, and should be a ... |
15-4-2019 at 02:28
by: phlogiston |
The Colors of Uranium
The periodic video's channel now has a video showing compounds of berkelium, curium, plutonium, nept ... |
12-4-2019 at 05:12
by: phlogiston |
Community Project - Destroy a funnel!
Tie a knot in the stem.
Or pack it really well, drop it from a high building. Then unpack it and ... |
31-3-2019 at 14:46
by: phlogiston |
U and Th
For many element collectors, a few micrograms suffice. Just enough Ra-containing barium to be detect ... |
29-3-2019 at 03:52
by: phlogiston |
scrap zirconium souces
If it is, the hafnium content should be exceptionally low (<0.02%)
Would be interesting to check ... |
29-3-2019 at 03:35
by: phlogiston |
U and Th
Nice video, thanks for sharing.
If you also want to isolate radium from the same sample the pitch ... |
29-3-2019 at 03:28
by: phlogiston |
Birkeland Eyde apparatus synthesized an unknown compound.
Is it soluble in water? |
24-3-2019 at 13:38
by: phlogiston |
unknown substance identification equipment
Often, you already have a clue in what direction to think if you know where the substance came from ... |
22-3-2019 at 03:45
by: phlogiston |
Cleaning copper oxides from Native Copper?
dilute sulfuric acid should work too. Don't use concentrated sulfuric acid. |
19-3-2019 at 02:35
by: phlogiston |
Is Cody's method of extracting iodine from seaweed cost efficient on that scale?
It's impossible to answer this question because it depends on your cost for reagents, energy, etc.
... |
18-3-2019 at 03:00
by: phlogiston |
Is potassium 40 ever isolated ?
To go from 0.014 to 4% take a lot more work than to go from 4% to 90+%, because you only have proces ... |
13-3-2019 at 20:34
by: phlogiston |
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