Francesco, As far as I know, Sodium Hydroxide will not etch iron. Did you mean NitAl (Nitric acid + Alcohol)?
Mendy Ouzillou >________________________________ > From: Mendy Ouzillou <ouzil...@yahoo.com> >To: Francesco Moser <coj...@tiscali.it>; "Meteorite-list@meteoritecentral.com" ><Meteorite-list@meteoritecentral.com> >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 <coj...@tiscali.it> >>To: Meteorite-list@meteoritecentral.com >>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 >>Meteorite-list@meteoritecentral.com >>http://six.pairlist.net/mailman/listinfo/meteorite-list >> >> > > ______________________________________________ Visit the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list