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ScopeGuy

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posted on 23-11-2015 at 19:08

how to make ferric chloride

I would like to try to make ferric chloride. FeCl3. can muriatic acid from the hardware store be used instead of hydrochloric acid.

I thought to used cleaned steel wool or a bunch of old rusty nails . Then filter it somehow.

My go is to make a 10 percent ferric chloride solution.

All this would be done outside.

Any suggestions on how to do this

ScopeGuy

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posted on 23-11-2015 at 19:09

also is it possible to easily make ferric chloride hexahydrate

ave369

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posted on 23-11-2015 at 20:57

Muriatic acid is the same as hydrochloric acid, except it already contains a small amount of ferric chloride in solution. This means yes, you can use it.

10 percent ferric chloride solution is fairly easy to make. You can also make the crystalline hydrate, if you don't mind smelling hydrogen chloride a bit: ferric chloride partly hydrolyzes when boiling down the solution. It won't be 100% pure, it will be a little contaminated by ferric hydroxide.

If you want the anhydrous salt, the only way is burning iron in chlorine, however.

Smells like ammonia....

WGTR

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posted on 23-11-2015 at 21:02

Google search terms:

ferric chloride site:www.sciencemadness.org

Enjoy!

_{Miniature Electric Kiln Project

Dye-Sensitized Solar Cell and Conductive ITO Glass Project

Nitric Oxide Generation: Rotating Arc, Triggered Arc, NO2 Adsorption, Electrolytic Oxidation of Ammonia to Nitrate, Electrolytic Nitrate Production, Gas-Phase Oxidation of Ammonia/Ostwald Process}

Marvin

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posted on 24-11-2015 at 10:49

I would expect this to produce ferrous chloride. I'm not sure about the easiest way to oxidise it, I think hydrogen peroxide can't be used. Oxygen should work but it could take a while.

Ferric chloride can be bought for etching circuit boards.

aga

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posted on 24-11-2015 at 12:28

Quote: Originally posted by WGTR

Google search terms:

ferric chloride site:www.sciencemadness.org

aga

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posted on 24-11-2015 at 12:37

Quote: Originally posted by Marvin

I would expect this to produce ferrous chloride. I'm not sure about the easiest way to oxidise it, I think hydrogen peroxide can't be used. Oxygen should work but it could take a while..

Try google: search term =
site:sciencemadness.org ferric chloride CHRIS25

He's not around these days, however he tested FeCl₃ from FeCl₂ by just bubbling air throught the liquid for days on end, titrating the solution each day.

Fe_(s) + HCl_(aq) does produce Green FeCl₂

Left exposed to Air for long enough the oxygen in the air does oxidise the iron to FeCl₃ (weeks/months)

Adding H₂O₂ (even 3%) does the same trick instantly.

ScopeGuy

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posted on 2-12-2015 at 18:59

Thank you everyone for all the information and links. It was very helpful.

Sciencemadness Discussion Board » Engineering and Equipment » Reagents and Apparatus Acquisition » how to make ferric chloride