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Can nitrous oxide be used as an inert gas?
[rquote=481372&tid=73615&author=XeonTheMGPony]Molecular sieve N2 concentrators are even bett ...
24-4-2017 at 21:16
by: Melgar
Getting rid of forum spam
[rquote=480932&tid=73541&author=Cryolite.]I'm still not sure why we don't have a better regi ...
24-4-2017 at 17:05
by: Melgar
underrated ascorbic acid
Ascorbic acid has been most useful for me for two applications:

First, adding in small amounts t ...
24-4-2017 at 16:46
by: Melgar
Help with indium chemistry
Incidentally, HCl + H2O2 does a good job of dissolving indium. You'd likely have to wait a day or s ...
24-4-2017 at 14:55
by: Melgar
ninhydrin synthesis
[rquote=481387&tid=73614&author=CharlieA]I think I may have seen a thread on this forum to p ...
24-4-2017 at 12:37
by: Melgar
Can nitrous oxide be used as an inert gas?
Bubbling propane through nitric acid, and then running that through sodium hydroxide to get rid of t ...
24-4-2017 at 05:53
by: Melgar
Inexpensive high-pressure gas pump
So, apparently this air pump is normally used for pressurizing air rifles, and can reach pressures o ...
21-4-2017 at 12:53
by: Melgar
Ruthenium dust (and more!) for sale from US. International shipping is possible.
I finally weighed out the ruthenium powder, and total was 8.5 grams, not including whatever is impre ...
21-4-2017 at 12:00
by: Melgar
Selling a bunch of stuff
If shipping is too much of a pain and someone really wants something you're getting rid of, what if ...
19-4-2017 at 11:01
by: Melgar
Packet Desicants
A bit of advice our British members might be especially appreciative of: cutting the top edge off of ...
17-4-2017 at 17:51
by: Melgar
Getting rid of forum spam
I used to run a PHP bulletin board, guys, and I'm currently CTO of an e-commerce startup company tha ...
17-4-2017 at 17:34
by: Melgar
Klean Strip Acetone
[rquote=480897&tid=73483&author=MrHomeScientist]I didn't know CaCl<sub>2</sub> r ...
17-4-2017 at 17:19
by: Melgar
Bromomethane and Formamide from DMF
Oh right. I was thinking of vanillin pyrolysis in a reducing environment, but forgot to take the cat ...
17-4-2017 at 03:52
by: Melgar
Getting rid of forum spam
I used to run a PHP bulletin board, and one of the easiest ways to prevent bots posting is to ask a ...
17-4-2017 at 01:20
by: Melgar
What color is a nuclear explosion ?
To get a good idea of what color range is emitted by different temperatures, look at fluorescent bul ...
17-4-2017 at 01:03
by: Melgar
Graffiti Removal
Three replies and no mention of toluene or xylene? Considering that's the solvent used in spray pai ...
17-4-2017 at 00:53
by: Melgar
cyanide
Ok, here are some suggestions: Learn if it is possible for you to smell cyanide. Most people can, ...
17-4-2017 at 00:47
by: Melgar
Klean Strip Acetone
If you want to minimize distillation, you can just store it over silica gel. A few of those little ...
16-4-2017 at 22:53
by: Melgar
Extracting Cobalt from cemented carbide tools.
I don't think you can or should attempt to only dissolve the cobalt. You want OTC? Get an old USB ...
16-4-2017 at 22:36
by: Melgar
What exactly is the reaction between methylene chloride and aluminum?
I read that article, then looked through the articles it references, regarding the reaction products ...
16-4-2017 at 05:43
by: Melgar
Experimental: Alternative to Al/Hg - the Al/Cu
Copper isn't magnetic... at least not ferromagnetic.

If something is behaving like an imine but i ...
16-4-2017 at 04:19
by: Melgar
Bromomethane and Formamide from DMF
Yeah, forget abstracting methyl groups from nitrogen, unless MAYBE you're dealing with a quaternary ...
15-4-2017 at 17:36
by: Melgar
Extracting Cobalt from cemented carbide tools.
[rquote=480700&tid=73485&author=karlos³]Very likely tungsten, since it´s chemical short is ...
15-4-2017 at 17:15
by: Melgar
Extracting Cobalt from cemented carbide tools.
By "wolfram", do you mean "tungsten"? If so, tungsten can be dissolved by H2O2, whereas cobalt cann ...
15-4-2017 at 14:07
by: Melgar
links to some electronic projects to support my chemistry
For holding a vacuum without burning out your pump, I'd imagine something like this would be valuabl ...
15-4-2017 at 13:58
by: Melgar
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