I have purchased Nital from chemical-supermarket.com. Premixed and much easier to not have to worry about improper mixing techniques and proper ratios. Shipping is a little costly due to safety, but still worth it for me. I normally get the Nital 10% Nitric, but they have different ratios available. They have a 69.5% concentration of nitric acid also if you want.
http://www.chemical-supermarket.com/Nital-10-Nitric-250ml-Micro-Etch-Solution-p425.html Aras From: "Joshua Tree Earth & Space Museum" <dori...@embarqmail.com> To: "Meteorite List" <meteorite-list@meteoritecentral.com> Sent: Thursday, September 12, 2013 10:17:36 AM Subject: [meteorite-list] Alcohol + water + NaOH 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! ______________________________________________ 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