[meteorite-list] Alcohol + water + NaOH

[Derek Yoost]

I would use steam distilled water insted of alcohol.  Less dangerous.  Have had personal bad experance with nitol.  If you use nitol, then keep in a ice bath to keep it stable.

Thanks, Derek.

Joshua Tree Earth & Space Museum <dorifry at embarqmail.com> wrote:

>Francesco:
>
>Do you mean sodium nitrate (NaNO3)?
>
>While we're on the topic, which solution of nitric acid works best for 
>making nitol? The purest I can find seems to be 67.2%. What would be the 
>ratio of alcohol added to make nitol?
>
>Phil Whitmer
>Joshua Tree Earth & Space Museum
>
>
>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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