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YPoP
Harmless
Posts: 1
Registered: 12-11-2002
Location: somehow
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extracting metals
I think essential more interested are the
electrolytic extracting of metals from
potassium-ferric(II)-cyanide !
K4[Fe(CN)6]
  
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TheBear
Hazard to Self
Posts: 78
Registered: 17-10-2002
Location: Sweden
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Mood: distilled
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Yesterday night I put some HCl (30%) in a glassjar and added some steel wool.
I wanted to produce ironchloride but today I went out (I always keep my experiments outside) to check whats happende. I found a funky green solution
wiht some mud-like mass on the buttom. Not all the steel wool has been disolved but still it fumes! What do you think it is? Could the mud on the
buttom be carbon from the "steel wool" (isn't steel wool pretty pure iron?). And the green color? Is it the color of FeClx. When is FeCl2 and FeCl3
made and whats the difference? It smells strange, not like chlorine... I can't put my finger on it (is that an expression?) but the green stuff looks
REALLY toxic you know. My HCl does look a little bit lightyellow/green. Perhaps it got something to do with that (perhaps chlorine dissolved in
water)?
So, does anyone know whats happened? Has something gone wrong? Is it toxic?
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Polverone
Now celebrating 21 years of madness
Posts: 3186
Registered: 19-5-2002
Location: The Sunny Pacific Northwest
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Steel wool is made of steel, which contains carbon. Carbon won't dissolve in HCl. I don't know if that's actually what you have in your sludge,
though.
Your green solution is FeCl2. If you aerate it or add some hydrogen peroxide it will be transformed to red-brown FeCl3.
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TheBear
Hazard to Self
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Registered: 17-10-2002
Location: Sweden
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OK, I think I'll just filter out the sludge and add some Zn (or Al if I cant find any Zn) and see if it works, if FeCl2 unhealthy, toxic I mean?
Should I use any specific "security clothes" or just standard outfit (rubber gloves, glasses, robber coat).
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Polverone
Now celebrating 21 years of madness
Posts: 3186
Registered: 19-5-2002
Location: The Sunny Pacific Northwest
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FeCl2 isn't unusually toxic. You should be fine with the protections you've mentioned.
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the_,-532_>m<
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Registered: 14-11-2002
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metal and salt
FeCl2 are a spicy shit, what has been used
sometimes in H2O to remove Cu from anyone.
Whats the reaction when FeCl2 mixed with a
strong metal detector than CALCON_15075 in dilute
water-mixture ?
[ FeCl2 + 2 C20H13N2O5SNa ]
Can you create a colour-changing from slight
green-brown to dark brown or black ?
„I trust nobody, it can be a fatal illusion !“
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Agent_Acridine
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Registered: 17-11-2002
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extracting metal
I do not know this but you can get a
colour-changing to dark blue when adding
a small amount of sodium nitrite to
ethyl alcohol and than add ammonium nitrate
and neutralizing with NaOH !
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