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Extracting Cobalt from cemented carbide tools.
I'll try to get some pics of this on the next batch (assuming it happens again).
Leaching the ox ... |
15-5-2017 at 12:10
by: Fulmen |
How should I treat TATP?
How you should view TATP? Like a wounded tiger, preferably through binoculars. |
12-5-2017 at 13:48
by: Fulmen |
Extracting Cobalt from cemented carbide tools.
I'm having some odd results with the tungsten oxide/acid. Extracted with NaOH and ppt with HCl I got ... |
12-5-2017 at 08:49
by: Fulmen |
Distilled vs Deionized Water
Only when needed. In many applications plain DI is more than adequate. |
27-4-2017 at 10:03
by: Fulmen |
Extracting Cobalt from cemented carbide tools.
Tungsten chemistry is actually quite interesting as well. It appears I made ammonium paratungstate ( ... |
21-4-2017 at 12:13
by: Fulmen |
Extracting Cobalt from cemented carbide tools.
Huh, guess I need to learn more about Co and W chemistry. The oxides does not dissolve appreciably i ... |
20-4-2017 at 01:11
by: Fulmen |
Extracting Cobalt from cemented carbide tools.
Heat definitively works. Tossed the parts in the furnace @850°C for a few hours, came out with a 3- ... |
19-4-2017 at 10:02
by: Fulmen |
How to get metal/metal oxides?
Many useful or otherwise interesting metals can be precipitated as hydroxides or carbonates, both ca ... |
19-4-2017 at 08:17
by: Fulmen |
What color is a nuclear explosion ?
It's still hot, but by that time the energy is dissipated enough to produce a yellow color. The init ... |
16-4-2017 at 14:24
by: Fulmen |
(UK) long-term chemophobia persecution campaign
Honestly, take a good look at yourself. You've already had a few "incidents" that will make any numb ... |
16-4-2017 at 14:00
by: Fulmen |
Extracting Cobalt from cemented carbide tools.
[b]Clearly_not: [/b]
You might be onto something there, it is certainly producing a medium concentr ... |
16-4-2017 at 13:45
by: Fulmen |
Extracting Cobalt from cemented carbide tools.
Diddi: Not tool steel, cemented carbides. The composition can vary, but it's usually tungsten carbid ... |
16-4-2017 at 01:37
by: Fulmen |
Extracting Cobalt from cemented carbide tools.
I'm not really interested in the tungsten carbide now, just the cobalt. Ammonium acetate sounds like ... |
16-4-2017 at 00:24
by: Fulmen |
Extracting Cobalt from cemented carbide tools.
I've been playing about with some broken carbide end-mills, trying to extract the cobalt. The "carbi ... |
15-4-2017 at 13:42
by: Fulmen |
Breaking rock without explosives
I actually worked with a guy that formulated such a product. I could never get the recipe from him t ... |
14-4-2017 at 00:40
by: Fulmen |
Cheap nitrates to potassium nitrate
No reason to guess:
https://en.wikipedia.org/wiki/Solubility_table
Below 20°C KNO3 is the leas ... |
11-4-2017 at 22:26
by: Fulmen |
TNT without SO3 or N2O5
As Xeon points out you can do it with 65% HNO3 and 98% H2SO4, although yields will be lower. A 3 sta ... |
11-4-2017 at 13:11
by: Fulmen |
Making tracer rounds
I'm considering making barium peroxide for this project. I don't really like to work with barium un ... |
26-3-2017 at 21:34
by: Fulmen |
shaped charges safety and effective range of jet formed!!
Technically it undergoes plastic deformation due to the extreme load it's subjected to. This will of ... |
23-3-2017 at 22:47
by: Fulmen |
Best way to make dry ice
Take a look at regenerative cooling (Linde-process). Basically you expand gas too produce a pressure ... |
23-3-2017 at 22:39
by: Fulmen |
Making tracer rounds
Greenlight: Excellent point. Sulfides can be quite corrosive, so unless it's covered by a delay/igni ... |
20-3-2017 at 05:25
by: Fulmen |
Making tracer rounds
You bring up some excellent points there, Markx. Solvents could require some trial&error, but at ... |
19-3-2017 at 13:15
by: Fulmen |
Making tracer rounds
I have to admit I'm a bit apprehensive about pressing metal fueled compositions. If it must be press ... |
19-3-2017 at 02:05
by: Fulmen |
Making tracer rounds
I think Kyle Kepley's emerald green looks like a good place to start:
Potassium perchlorate - 8
B ... |
17-3-2017 at 06:21
by: Fulmen |
Making tracer rounds
[rquote=477871&tid=72964&author=NedsHead]over engineering things
[/rquote]
There is no s ... |
17-3-2017 at 01:22
by: Fulmen |
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