| Search |
| [Next Page] |
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 |
A slightly dangerous but surprisingly effective way to make HCl
What kind of membrane do you use ? Because a membrane is mandatory to prevent the OH- reacting with ... |
15-9-2020 at 11:42
by: metalresearcher |
Create a carbon free electric arc ?
Thanks for the tip.
I have a (simple disposable) Ar cylinder for other experiments (not used yet fo ... |
10-9-2020 at 21:50
by: metalresearcher |
Create a carbon free electric arc ?
No, it is purely the vaporizing carbon which is contaminating the steel. But can I just use a tungst ... |
10-9-2020 at 12:06
by: metalresearcher |
Create a carbon free electric arc ?
I do sometimes (stainless) steel melting with my DC welder and carbon rods. That works well, but, ev ... |
10-9-2020 at 10:19
by: metalresearcher |
Best place to get glassware in Germany?
I ordered there some glassware.
https://www.neubert-glas.de/
More expensive than AliExpress or ... |
2-9-2020 at 11:10
by: metalresearcher |
Making Scientific Glassware
[rquote=644015&tid=156103&author=Morgan]A quartz flask method.
https://youtube.com/watch?v= ... |
2-9-2020 at 11:07
by: metalresearcher |
| [Next Page] |
