[meteorite-list] The Dreaded Rust!
From: colin wade <ceweed_at_meteoritecentral.com>
Date: Thu Apr 22 09:46:22 2004 Message-ID: <002301c0d769$50c687e0$02000003_at_colinwad> Hi Steve & List Has anyone tried ammonia in alcohol ( IP or Methanol Vodka at a push ) & I would suspect that the ammonia ion will also like the Cl & has the advantage of a low sublimation temperature , & high vapour pressure at room temps may even work with dry ammonia on a cold sample ,& heating up to driveoff the NH3 Cl Justathought Colin ----- Original Message ----- From: <meteorites_at_space.com> To: <kentnorwood_at_email.msn.com> Cc: <Meteorite-list_at_meteoritecentral.com> Sent: Sunday, May 06, 2001 10:10 PM Subject: Re: [meteorite-list] The Dreaded Rust! > 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. > > _______________________________________________ > Meteorite-list mailing list > Meteorite-list_at_meteoritecentral.com > http://www.pairlist.net/mailman/listinfo/meteorite-list Received on Mon 07 May 2001 10:42:37 PM PDT |
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