[meteorite-list] Alcohol + water + NaOH

From: Michael Mulgrew <mikestang_at_meteoritecentral.com>
Date: Wed, 11 Sep 2013 15:01:20 -0700
Message-ID: <CAMseTy1wHbNi0nuHiUm7fEZ4CKtR1HyWcgBPguvDH5XpN+sH3w_at_mail.gmail.com>

I'm not at all familiar with what you are trying to accomplish by
soaking an iron in a basic solution of sodium hydroxide for a week,
but it sure doesn't sound like a good idea. The best thing to do to
prevent rust is to vacuum seal it in a glass container. Also, if you
must handle it, wear cotton gloves.

Michael in so. Cal.

On Wed, Sep 11, 2013 at 12:22 PM, Francesco Moser <cojack at tiscali.it> wrote:
>
> Hello, I have a roughly cutted Muonionalusta slice to make beatiful.
> I will grind, polishing and etching it ... and after for prevent rust and
> stabilize it I'm planning to use the method alcohol + water + NaOH .
> But I have few question:
>
> Ethanol at 96% works fine?
> I have to use distilled water or normal water?
>
> For 100ml of solution I have to use 70ml of ethanol and 30ml of water, is
> this proportion correct?
> How many grams (or spoons) of NaOh I have to use?
> How many days I have to leave the slice in the solution? 7-10 days? In this
> period I have to change the solution or the first potion works fine for all
> these days?
>
> And after? What I have to do? I have to wash it with ethanol and after dry
> up in oven, 80?C?
> After could I also put some rust prevent varnish?
>
> Any other tip are welcomed!!!
>
> Thanks a lot!!!
> Francesco!
>
>
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Received on Wed 11 Sep 2013 06:01:20 PM PDT