[meteorite-list] etching irons with ferric chloride solution from radio shack

From: Göran Axelsson <axelsson_at_meteoritecentral.com>
Date: Wed Jan 26 18:12:16 2005
Message-ID: <41F824D1.3090609_at_acc.umu.se>

I thought that the general idea was chlorine and iron makes rusting
meteorites.
I wouldn't use it myself. I used some to etch circuit boards in my youth and
if you drop some grains of iron chloride it will pull moisture from the air
until it's completely dissolved.
If you dip an iron into FeCl solution it will be drawn into dry
fractures and
surfaces and to get it out without electrolysis is probably really slow
work.

Am I wrong in my speculations? Anyone tested this already?

I use the alcohol and nitric acid etch. Not only because I have it
handy, but
also to avoid chlorine contaminations.

/G?ran

harlan trammell wrote:

> i thought i'd try it on a cheap iron- anybody got any pointers on
> swabbing, rinsing , waiting, etc.?!
>
>
> i will be gradually switching over to yahoo mail (it has 100 FREE megs
> of storage). please cc to: bigpineartifacts_at_yahoo.com
> <mailto:bigpineartifacts_at_yahoo.com>
>
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Received on Wed 26 Jan 2005 06:16:33 PM PST