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Hotter alternative for Kanthal ? I use an electric furnace for copper melting or other metals, but when I need higher temps, I have t ... |
12-12-2020 at 23:48 by: metalresearcher |
Gunpowder (Potassium Chlorate) from Bleach [rquote=650647&tid=156674&author=woelen]After reading this thread I have one comment: Do not ... |
6-12-2020 at 03:14 by: metalresearcher |
Sulfuric Acid in NZ V2 Strict EU(-like) regulations also apply to NZ ?
http://www.sciencemadness.org/talk/viewthread.php?t ... |
8-11-2020 at 01:43 by: metalresearcher |
Bad luck or what? Never had problems with glassware ordered online.
Only once with a thermocouple from Aliexpress. Th ... |
4-11-2020 at 03:49 by: metalresearcher |
How to cut 1oz silver bar into pieces that will fit in a test tube [rquote=647869&tid=156433&author=Heptylene]A chisel will work for a 1oz bar for sure. Be sur ... |
3-11-2020 at 23:44 by: metalresearcher |
Electrolysis of alumina to aluminum metal in ammonia If this were true, commercial isolation of aluminum would use this process rather than the energy in ... |
3-11-2020 at 23:36 by: metalresearcher |
Copper flame colour Was it orange or bright yellow ?
In the latter case, the wire or plastic was probably contaminate ... |
3-11-2020 at 23:26 by: metalresearcher |
Woodstove embers temperature ? Now the colder season starts in the northern hemisphere and I am interested how hot a woodstove can ... |
24-10-2020 at 12:35 by: metalresearcher |
Electric stove for metal casting? [rquote=647155&tid=156353&author=Junk_Enginerd]Cast iron is more carbon steel than carbon st ... |
24-10-2020 at 12:21 by: metalresearcher |
Distinguishing between KCl and NaCl [rquote=646663&tid=156335&author=valeg96]
That was the quickest way. Besides, the flame tes ... |
20-10-2020 at 10:42 by: metalresearcher |
Why are odd elements rarer that even elements ? On this image on Wikipedia, I noticed that almist *all* odd elements are considerably rarer than eve ... |
18-10-2020 at 12:05 by: metalresearcher |
Potassium permanganate storage I agree. I have KMnO4 in a glass jar since ten years and it is still intact. |
18-10-2020 at 11:42 by: metalresearcher |
Aluminum oxide (sapphire) glassware? [rquote=646542&tid=156330&author=unionised]The chemical resistance is also good.
But it can ... |
18-10-2020 at 03:02 by: metalresearcher |
If earth's resources were differently divided? Gold is being mined from (mostly) underground, then refined and processed and lots of it is stored u ... |
18-10-2020 at 01:47 by: metalresearcher |
How to seal a threaded stainless steel retort ? [rquote=646605&tid=156326&author=Fyndium]Carbon powder, mixed with sodium silicate might wor ... |
17-10-2020 at 00:17 by: metalresearcher |
How to seal a threaded stainless steel retort ? [rquote=646596&tid=156326&author=njl]Why not seal with teflon tape?[/rquote]
Teflon tape at ... |
16-10-2020 at 09:55 by: metalresearcher |
How to seal a threaded stainless steel retort ? I have a stainless steel retort made of threaded 1" pipe with a bottom welded on and a screwable top ... |
14-10-2020 at 11:08 by: metalresearcher |
How are phosphorus burns treated? Always use a face shield and leather gloves and a fire retardant workspace.
Prevention is better t ... |
14-10-2020 at 05:44 by: metalresearcher |
Even HDPE Bottles Aren't Immune to Chemical Attack [quote]
Yep, the pics just make the page an absolute horror even for larger res monitors. I wonder ... |
29-9-2020 at 01:43 by: metalresearcher |
Getting a retort. What can I do with it? The problem with such a retort is that you cannot clean it. The small stopper in it allows only acce ... |
28-9-2020 at 01:34 by: metalresearcher |
This is mandatory stuff for (amateur) chemists (Safety) I stumbled upon a parallel channel of NileRed, called NileBlue, of the same guy.
In this 30 min v ... |
27-9-2020 at 01:03 by: metalresearcher |
My synthetic rubies are somewhat impure, how to make cleaner ? The idea of making a kind of pellets is very good to prevent the arc blowing away the powder.
But w ... |
25-9-2020 at 23:50 by: metalresearcher |
My synthetic rubies are somewhat impure, how to make cleaner ? Here they are, they are about 12mm large.
My carbon rods are pure carbon, no salts inside and no ... |
22-9-2020 at 11:17 by: metalresearcher |
My synthetic rubies are somewhat impure, how to make cleaner ? I tried again, but now with a larger pile of Al2O3 / Cr2O3 mixture, preventing the arc reaching the ... |
22-9-2020 at 02:19 by: metalresearcher |
My synthetic rubies are somewhat impure, how to make cleaner ? Using a DC welder with two carbon rods, some Al2O3 powder and 1/50 of that amount of green Cr2O3 to ... |
19-9-2020 at 10:06 by: metalresearcher |
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