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Electrolysis of MgCl2 (a realistic objective?)
[rquote=543429&tid=97625&author=Whenyou]Mg(OH)2 (melting at 350C) [/rquote]
Nope. Magnesium ...
14-10-2018 at 13:42
by: Fulmen
Hydrogen Embrittlement - when to worry about it
A quick read tells me this is a very complicated field. Finding simple engineering tables might not ...
14-10-2018 at 11:44
by: Fulmen
Hydrogen Embrittlement - when to worry about it
There are several challenges with hydrogen, embrittlement is as far as I can tell mostly a problem w ...
14-10-2018 at 09:22
by: Fulmen
Carburizing experiments
This should create sodium cyanate, making it a fairly standard nitrocarburization-bath.
14-10-2018 at 02:18
by: Fulmen
Sulfuric acid from gypsum using diaphragm cell
OK, I now have 4 samples ranging from 60 to 100mg/cm^2 of PVA/borate. It's probably far thicker than ...
12-10-2018 at 08:40
by: Fulmen
Sulfuric acid from gypsum using diaphragm cell
I didn't measure, it was glue I had previously diluted for paper tube rolling. Perhaps 10%, just eno ...
11-10-2018 at 21:26
by: Fulmen
Sulfuric acid from gypsum using diaphragm cell
Worked like a charm. I made a couple of different membranes, using different amount of PVA (by dilut ...
11-10-2018 at 11:22
by: Fulmen
Sulfuric acid from gypsum using diaphragm cell
I found it (or at least some heat treating paste containing boric acid , I should have pure boric ac ...
11-10-2018 at 08:06
by: Fulmen
Sulfuric acid from gypsum using diaphragm cell
Very interesting read. I had a similar idea for a plastic mesh supported membrane by spraying the PV ...
10-10-2018 at 11:34
by: Fulmen
PVA film diaphrams
I believe the PVA/borax mixture could work as a cation membrane. The borate anion crosslinks with th ...
9-10-2018 at 10:04
by: Fulmen
PVA film diaphrams
Funny, I'm reading up in the same thing. But it's not a diaphragm but rather a proton/cation permeab ...
9-10-2018 at 06:04
by: Fulmen
Sulfuric acid from gypsum using diaphragm cell
[rquote=535049&tid=91332&author=mysteriusbhoice]I do plan on making an Ion exchange membrane ...
7-10-2018 at 01:26
by: Fulmen
Carburizing experiments
I agree, back off the throttle a bit. Nothing good comes from heating steel more than you have to. O ...
28-9-2018 at 11:35
by: Fulmen
products produced through yeast fermentation
[rquote=538888&tid=92348&author=Yttrium2]why does the yeast produce those compounds though?[ ...
27-9-2018 at 11:47
by: Fulmen
Nitric Acid and Silver Nitrate
I have to assume it's coming from the silver alloy somehow. Although the amount has subsided there i ...
23-9-2018 at 02:57
by: Fulmen
Nitric Acid and Silver Nitrate
Battery acid and recrystallized fertilizer grade. So, not really but it shouldn't be THAT bad. The s ...
22-9-2018 at 06:36
by: Fulmen
Nitric Acid and Silver Nitrate
I'm trying to make a bit of silver nitrate and have run into some odd behavior. The nitric acid was ...
22-9-2018 at 01:53
by: Fulmen
Carburizing experiments
Could possibly work in a gas furnace. For a "solid pack" or liquid bath process I don't see them sur ...
21-9-2018 at 12:59
by: Fulmen
How Nobel actually discovered dynamite?
Whenever someone starts with "according to legend" you can safely ignore everything that comes after ...
20-9-2018 at 09:50
by: Fulmen
Any ideas to passivate stainless steel against chlorine?
[rquote=536514&tid=92582&author=Sidmadra]A lot sell PTFE lined steel braided hoses, but I do ...
19-9-2018 at 22:20
by: Fulmen
Carburizing experiments
From my research most baths today are cyanate-based, so they should be quite safe. The trouble with ...
18-9-2018 at 11:44
by: Fulmen
Carburizing experiments
Actually many low alloy steels are tempered at those temperatures. Currently I'm working on a rifle ...
18-9-2018 at 02:46
by: Fulmen
Carburizing experiments
Boriding is comparable to nitrocarburizing in that it forms hard iron boride rather than martensite ...
18-9-2018 at 01:02
by: Fulmen
Carburizing experiments
[rquote=536035&tid=92583&author=markx]
10% wood charcoal
10% SrCO3
80% Na2CO3[/rquote]
...
16-9-2018 at 22:50
by: Fulmen
Liquid evaporation time dependency
I have to agree with the two previous posters. This is actually a very hard problem to solve, I expe ...
27-8-2018 at 13:31
by: Fulmen
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