[meteorite-list] etching solution

From: Mark Jackson <b0rtz2003_at_meteoritecentral.com>
Date: Thu Apr 22 10:21:06 2004
Message-ID: <20030718183649.39392.qmail_at_web60003.mail.yahoo.com>

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Dear List,
 
I'm trying to locate etching solution capable of etching Widmanstatten patterns to view on meteorites. I understand it's nitric acid? I got the "bright" idea of checking my local electronic supply house for PC board etching solution and it seems that ferric chloride is used to etch copper from the breadboards. I got a B in college chemistry and that makes me question the usefulness of using ferric chloride on a meteo(rite/wrong). Am I correct in questioning this practice? Where can I find, or how can I extract, nitric acid to use if I am correct?
 
Many thanks,
 
Mark


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<DIV>Dear List,</DIV>
<DIV>&nbsp;</DIV>
<DIV>I'm trying to locate etching solution capable of etching Widmanstatten patterns to view on meteorites. I understand it's nitric acid? I got the "bright" idea of checking my local electronic supply house for PC board etching solution and it seems that ferric chloride is used to etch copper from the breadboards. I got a B in college chemistry&nbsp;and that makes me&nbsp;question the&nbsp;usefulness&nbsp;of using ferric chloride on a meteo(rite/wrong). Am I correct in questioning this practice? Where can I find, or how can I extract, nitric acid to use if I am correct?</DIV>
<DIV>&nbsp;</DIV>
<DIV>Many thanks,</DIV>
<DIV>&nbsp;</DIV>
<DIV>Mark</DIV><p><hr SIZE=1>
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Received on Fri 18 Jul 2003 02:36:49 PM PDT