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Upgrade NaClO3 > NaClO4 failed : anode worn out ?
A few days ago I did a new attempt to make perchlorate, after a successful electrolysis a year ago. ... |
9-2-2026 at 11:17
by: metalresearcher |
Alternative method preparing FeCl3 ?
According to this page https://en.wikipedia.org/wiki/Iron(III)_chloride this reaction should occur.
... |
17-1-2026 at 13:27
by: metalresearcher |
Purifying molten aluminum from soda cans?
What do you mean with 'purify' ? It can be remove the dross (can be done with NaOH prills which melt ... |
1-1-2026 at 10:19
by: metalresearcher |
How to make lime or magnesia bricks for an electric arc furnace ?
In the past I have experimented with an EAF using a DC welder and carbon rods. I can melt steel in l ... |
27-11-2025 at 12:20
by: metalresearcher |
Stupid question about commercial aluminum isolation
Since 140 years aluminum is isolated using the Hall-Héroult process electrolyzing Al2O3 dissolved i ... |
12-10-2025 at 02:28
by: metalresearcher |
Stainless steel staining
The only thing I might guess is Al2O3 which is stubborn.
But did you use any aluminum foil or sheet ... |
9-10-2025 at 09:34
by: metalresearcher |
Securing Sciencemadness: understanding the threat model
Five years later, it is still possible to access the site with http. So can TLS be enforced ?
That ... |
7-10-2025 at 02:49
by: metalresearcher |
sodium silicate from silica sand and sodium hydroxide solution in water for making calcium silicate
[rquote=703549&tid=161255&author=macckone]If you are looking for cheap insulation for a furn ... |
5-10-2025 at 11:18
by: metalresearcher |
Strongly heating K2CO3 + C foams ?
This old book (1844) is really interesting, some incorrect formulas (potassium oxide as KO instead o ... |
5-10-2025 at 10:34
by: metalresearcher |
Strongly heating K2CO3 + C foams ?
[rquote=703535&tid=161327&author=Alkoholvergiftung]I would use the excess because more of th ... |
4-10-2025 at 08:27
by: metalresearcher |
Strongly heating K2CO3 + C foams ?
I heated it a few minutes until the bubbling in the jar with oil stopped.
The Potasiumcarbonmonoxid ... |
4-10-2025 at 07:55
by: metalresearcher |
Strongly heating K2CO3 + C foams ?
In order to try a 19th century experiment (and commercial production of sodium with similar Na2CO3 + ... |
4-10-2025 at 06:24
by: metalresearcher |
Does H2CO3 really exist ?
I always thought that this was a virtual compound as adding acid to a carbonate bubbles CO2 and no r ... |
3-10-2025 at 22:16
by: metalresearcher |
Which chemicals do you NOT want to have at home ?
[rquote=703511&tid=161323&author=yobbo II]
Compressed O2?
Was that a typo ?
I have ... |
3-10-2025 at 22:10
by: metalresearcher |
K2CO3 : is it moisture or melting ?
Probably the latter, I pointed a pyrometer to it (blurred in the video as too close) and saw 800 C w ... |
3-10-2025 at 10:33
by: metalresearcher |
Which chemicals do you NOT want to have at home ?
Because of too toxic, flammable, oxidizing, etc.
I kick off:
ClF3
FOOF
F2
HF (even aqueous ... |
30-9-2025 at 08:22
by: metalresearcher |
Why is isolating Na more difficult than isolating K ?
[rquote=703463&tid=161318&author=Deathunter88]It appears that over a wide temperature range ... |
30-9-2025 at 07:28
by: metalresearcher |
Why is isolating Na more difficult than isolating K ?
Several times I have isolated potassium metal using KON + Mg. I put it in a 316 stainless steel reto ... |
28-9-2025 at 11:39
by: metalresearcher |
Chemicals that are expensive to buy but easy to make
White Phosphorus !
This nasty chemical can be made by heating NaPO3 + SiO2 + Al powder to 700 C and ... |
16-8-2025 at 11:32
by: metalresearcher |
Making pure oxygen from dead carbon zinc batteries
[rquote=702506&tid=161146&author=teodor]There are far more cheap ways to produce oxygen.
... |
15-8-2025 at 12:06
by: metalresearcher |
Mercury accident and disposal
Why not dump the plastic with the Hg in it, in HNO3 ? That dissolves the Hg, oxidizes (?) the plasti ... |
11-8-2025 at 11:47
by: metalresearcher |
Liquid Carbon exists ?
I found an interesting article:
https://www.nature.com/articles/s41586-025-09035-6
The elusive ... |
29-7-2025 at 10:43
by: metalresearcher |
Types of metals for rocket motors
I have no experience with rocket engines (yes, engine, not motor as a motor is electrical), but I be ... |
12-7-2025 at 11:45
by: metalresearcher |
Fireworks facility goes boom
I saw on other YT videos that there were seven people missing and human remains were found of more t ... |
5-7-2025 at 05:02
by: metalresearcher |
Fireworks facility goes boom
Cannot view this.
"The uploader says it is not available in your country".
Pure censorship.
... |
4-7-2025 at 22:57
by: metalresearcher |
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