Mendy...I think Francesco is talking about the preservation process and not the etching. I have managed to preserve irons to some degree using NaOH solution without alcohol...but I was a bit hit and miss with the dilution and times they were left for.
Graham On Wed, Sep 11, 2013 at 10:29 PM, Mendy Ouzillou <[email protected]> wrote: > Francesco, > > As far as I know, Sodium Hydroxide will not etch iron. Did you mean NitAl > (Nitric acid + Alcohol)? > > > Mendy Ouzillou > > > >>________________________________ >> From: Mendy Ouzillou <[email protected]> >>To: Francesco Moser <[email protected]>; >>"[email protected]" <[email protected]> >>Sent: Wednesday, September 11, 2013 2:28 PM >>Subject: Re: [meteorite-list] Alcohol + water + NaOH >> >> >> >>Francesco, >> >>As far as I know, Sodium Hydroxide will not etch iron. Did you mean NiTal >>(Nitric acid + Alcohol)? >> >> >> >> >>Mendy Ouzillou >> >> >> >>>________________________________ >>> From: Francesco Moser <[email protected]> >>>To: [email protected] >>>Sent: Wednesday, September 11, 2013 12:22 PM >>>Subject: [meteorite-list] Alcohol + water + NaOH >>> >>> >>> >>>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! >>> >>> >>>______________________________________________ >>> >>>Visit the Archives at http://www.meteorite-list-archives.com >>>Meteorite-list mailing list >>>[email protected] >>>http://six.pairlist.net/mailman/listinfo/meteorite-list >>> >>> >> >> > ______________________________________________ > > Visit the Archives at http://www.meteorite-list-archives.com > Meteorite-list mailing list > [email protected] > http://six.pairlist.net/mailman/listinfo/meteorite-list ______________________________________________ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list [email protected] http://six.pairlist.net/mailman/listinfo/meteorite-list
