[TheForge] Making Ferric Chloride etchant

[April & Bill Clemens]

Bruce,

HCl plus Fe results in Ferrous Chloride (FeCl2) not Ferric Chloride (FeCl3)

I assume that when it will dissolve no more Iron it isn't very useful to
etch iron...

Although it appears you can turn Ferrous Chloride into Ferric Chloride by
adding Chlorine:

FeCl2(aq) + Cl2(g) → FeCl3(aq)





Bill

Sources:

http://en.wikipedia.org/wiki/Iron(III)_chloride
http://en.wikipedia.org/wiki/Iron(II)_chloride



-----Original Message-----
From: theforge-bounces at mailman.qth.net [mailto:theforge-bounces at mailman.qth.
net] On Behalf Of Bruce Freeman
Sent: Tuesday, November 21, 2006 1:21 PM
To: theforge at mailman.qth.net
Subject: [TheForge] Making Ferric Chloride etchant

Buy a jug of muriatic acid.  Add scrap iron.  (Flammable, explosive
hydrogen gas will be given off, so do this outside, using a container
not tightly sealed.)  When acid will dissolve no more iron, the red
solution is Ferric Chloride.

Bruce
NJ

>>> dantull at numail.org 11/21/2006 10:49 AM >>>
I had heard rumors that they were removing it, is why I bought 6
bottles 
last trip in. Last year it was still on the shelf, thou geek didn't
know 
what or where.

_______________________________________________
Manage membership or unsubscribe at:
http://mailman.qth.net/mailman/listinfo/theforge
theforge mail list group photo site is
http://www.photoaccess.com
Login:  blacksmithblacksmith at hotmail.com
password:  anvil
___________