Hello McCartney (and all):
Yes, the etch happens very quickly and you need to terminate it by a quick
wash under running water. Follow with a rinse in distilled water if you
want to but we never do and it works fine. You don;t have to neutralize it,
just wash it off VERY FAST. In fact, I use running water to slow down the
process as I am doing it, especially if I need to etch one section of a
surface more. There is a bit of a technique - just practice and you will do
well. If yo are getting staining your washing is incomplete.
Ron Hartman
----- Original Message -----
From: "McCartney Taylor" <[email protected]>
To: "MeteoriteList" <[email protected]>
Sent: Thursday, October 29, 2009 2:58 PM
Subject: [meteorite-list] Issue with etching via ferric choride
Having a bit of a problem on some etch jobs and having to re-etch a few
specimens.
How do you rinse/neutralize your ferric after the etch? I'm getting
remnant staining and sometimes corrosion. I'm doing something wrong.
Any ideas?
-mt
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