[meteorite-list] nital and etching

From: Michael Mulgrew <mikestang_at_meteoritecentral.com>
Date: Fri, 26 Aug 2011 10:28:54 -0700
Message-ID: <CAMseTy3Q7wU1gGnkMhKTcFFFZUiy5NY7D2xLKHK5RFQu5EFv-g_at_mail.gmail.com>

Francesco,

You can also use Ferric Chloride (sold as computer board etch agent at
most major electronics stores); it is far less dangerous than handling
Nitric Acid, and it etches much faster.

-Michael in so. Cal.

On Fri, Aug 26, 2011 at 5:11 AM, Francesco Moser <cojack at tiscali.it> wrote:
> Hello dear friends!
>
> I want to try to etching some iron meteorites and some mesosiderites, but I
> never try this!
>
> I have here nitric acid HNO3 at 65% and ethyl alcohol at 96% .... and now??
>
> Could you give me some tips about the nital preparation procedure???
> The best percentage? It's better, more safe, to put the HNO3 in the alcohol
> or vice versa?
>
> Every tip are welcomed! :)
>
> Thanks a lot!!!
>
> Francesco!
>
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Received on Fri 26 Aug 2011 01:28:54 PM PDT