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Author: Subject: Types of iron for reduction

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[*] posted on 16-9-2021 at 09:00
Types of iron for reduction

Greetings fellow experimenters, I've read about uses of iron in organic synthesis, namely reductions. It is more used electrolytical iron, but what about other types of production?
Does it matter in the end? Could be electrolytical iron substituted for pentacarbonyl iron powder or iron made by gas reduction?

Thanks for any input:)
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[*] posted on 6-10-2021 at 00:14

Umm. Some of the guys claim "Steel Wool" works pretty well.

These reductions are sometimes described as "dissolving metal"
reductions. And, I've read some bulky papers on the subject.

None-the-less, my understanding of the subject remains murky.

Sometimes these reductions work stunningly well, and sometimes not.

In a clinch, I would try using either Steel Wool, or Iron filings.

Electrolytic Iron, is a hard to find, expensive material. Steel Wool, I can buy fairly cheaply at my local hardware store. Just about a mile from my home.

Steel Nails, grindings or filings, might be cheaper still.

I'd try 'em out.

Though, I must defer to those that have more experience.

[Edited on 6-10-2021 by zed]
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[*] posted on 11-10-2021 at 08:23

If you need something more reactive than steel wool, the next step up is going to be 'hand warmers'.
They usually contain a salt as well as iron to act as a catalyst.
Depending on the reaction this may not be a problem.

Finally there is pyrophoric iron from iron oxalate.
Which is easy to make if you have access to oxalic acid (wood bleach or rhubarb or certain cleaning products)
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[*] posted on 11-10-2021 at 10:47

One suggestion is boring(s).
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[*] posted on 22-10-2021 at 04:15

iron oxalate decomposes into pyrophoric iron dust or FeO (which on itself is a reducing agent)
iirc around 300*C, you may mix this up with some inert chemical to keep it from reacting with oxygen

as for reduction, i recall hearing electrolysis using glucose electrolyte forms at the cathode single hydrogen, and ive seen vague hints of this happening even in NaCl electrolysis, where i had some Cu(OH)2 rubbed on cathode and it immediatedly turned into Cu metal
i vaguely remember them calling it uncle festers reaction or similar, i cant remember if it requested specific electrodes- i mean, platinum is never a bad thing is it?

~25 drops = 1mL @dH2O viscocity - STP
Truth is ever growing - but without context theres barely any such.
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