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Registered Member #1056
Joined: Thu Oct 11 2007, 11:15PM
Location: CT, USA
Posts: 27
If you Neutralize it, It becomes Iron Hydroxide. If you put Iron Hydroxide in a oven, it becomes Rust, which you can use for Thermite. Or, Rocketry since its used as a catalyst.
Registered Member #193
Joined: Fri Feb 17 2006, 07:04AM
Location: sheffield
Posts: 1022
"All these solutions sound like more trouble than they're worth." So nobody would bother to do them. That means the stuff won't get recyled so how do you propose to acieve the first part of your post "Why not just take it somewhere and recycle it?"
Banned on 3/17/2009. Registered Member #487
Joined: Sun Jul 09 2006, 01:22AM
Location:
Posts: 617
I meant trying to neutralize it yourself seems like more trouble than just taking it somewhere. What I'm saying is. Just find a place that recycles it. It would be much easier then mixing a bunch of crap together. Plus recycling is free.
Registered Member #1030
Joined: Thu Sept 27 2007, 07:12PM
Location: Helsinki, Finland
Posts: 4
FeCl3 is not sold anymore and should not be used. FeCl3 is not recycled it is chemical waste! Sodiumpersulphate is used instead and sometimes mixed with little hydrochloric acid. One should not try to neutralize FeCl3 at home (really nasty!). Just take it to some chemical waste facility to dispose of it.
Registered Member #193
Joined: Fri Feb 17 2006, 07:04AM
Location: sheffield
Posts: 1022
FeCl3 is not sold anymore and should not be used. oh yes it is. "FeCl3 is not recycled it is chemical waste! " If it is being used it isn't waste. "Sodiumpersulphate is used instead and sometimes mixed with little hydrochloric acid. " That mixture is likely to generate chlorine; not a good idea in domestic circumstances. Anyway, whatever you use to dissolve copper you need to dispose of the toxic copper compounds . Persulphate doesn't get round this problem.
Registered Member #1025
Joined: Sun Sept 23 2007, 07:53PM
Location: Czech Rep.
Posts: 566
I’m not sure how nature friendly it is, but maybe one option is just to spill the old FeCl3 on multiple layers of old newspaper, let it air dry and than burn it… You get just oxides which should be more or less harmless and mainly by polluting it via fire you dissolve it to concentrations the nature can easily handle.
Registered Member #135
Joined: Sat Feb 11 2006, 12:06AM
Location: Anywhere is fine
Posts: 1735
No no no. Do not burn it, the Chlorine is very irritating and what you're suggesting means you haven't worked with the material enough to know what to do.
We have already discussed this ad-nausium.
Either keep an etch tank so you dont have to dispose of it.
Neutralize with NaOH, or other material to solidify the material for easy disposal.
Do not dump in toilet, pour on lawn, or any other shady method.
FeCl3 is still sold at some Electronics stores.
FeCl3 is a hazardous material so it should be disposed of as a hazardous material.
If you are still unsure of what you should do, go back and read the entire thread since we have answered these problems for the most part. Some of these questions are just getting repeted by the newer memebers and it isn't necessary.
Banned on 02/27/2008 Registered Member #1326
Joined: Sun Feb 17 2008, 11:19PM
Location:
Posts: 49
the industrially used method in all the big etching plants is to neutralize FeCl3 using MgO, Lime or Limestone with the MgO being the most preferred. The the precipitate is settled and filtered to make cakes which contain precious and poisonous and environmentally harmful metals. This is sent to the steel mills to be reused. MgCl2 is send to other industries that use it.
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How to neutralize FeCl3
