[meteorite-list] The Dreaded Rust!
From: meteorites_at_space.com <meteorites_at_meteoritecentral.com>
Date: Thu Apr 22 09:46:22 2004 Message-ID: <20010506191041.3522.cpmta_at_c000.snv.cp.net> On Sun, 06 May 2001, "kentnorwood" wrote: > > <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> > <HTML><HEAD> > <META content="text/html; charset=iso-8859-1" http-equiv=Content-Type> > <META content="MSHTML 5.00.3017.1000" name=GENERATOR> > <STYLE></STYLE> > </HEAD> > <BODY bgColor=#ffffff> > <DIV><FONT face=Arial size=2>Hi List,</FONT></DIV> > <DIV> </DIV> > <DIV><FONT face=Arial size=2> I have a Campo and a Canyon > Diablo that are beginning to show rust. From "The Meteorite & Tektite > Collector's Handbook", I have a choice of using sodium citrate, sodium > hydrosulfate, oxalic acid, or tartaric acid to remove the rust. I have > never bought or used any of these and would like to ask the list which I should > choose. Are they available at a hardware store or ?</FONT></DIV> > <DIV><FONT face=Arial size=2> The book also tells me > to seal the specimens using lacquer; Which brand or type > should I use?</FONT></DIV> > <DIV> </DIV> > <DIV><FONT face=Arial size=2>Thanks,</FONT></DIV> > <DIV><FONT face=Arial size=2> Kent > Smith</FONT> </DIV></BODY></HTML> oxalic acid can be obtained at any automotive store. Its the tank dip, dark brown stuff used to clean carbs and auto parts. I have never tried it on meteorite rusting, and I am not sure if it will work as effectively as using 70% isoproypl with a teaspoon of Red Devil lye (NaOH) per cup. I think that FeCl3 is acidic, so a strong base such as NaOh should take care of that better than any acid. Steve Schoner. ___________________________________________________________________ Join the Space Program: Get FREE E-mail at http://www.space.com. Received on Sun 06 May 2001 03:10:41 PM PDT |
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