[meteorite-list] etching solution

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From: Mark Miconi <mam602_at_meteoritecentral.com>
Date: Thu Apr 22 10:21:06 2004
Message-ID: <002c01c34d62$a3ac07c0$d7e16a44_at_ph.cox.net>

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If you dilute the acid always add the acid to the water....never the =
otherway around.

Mark M.
  ----- Original Message -----=20
  From: Pekka Savolainen=20
  To: Mark Jackson=20
  Cc: meteorite-list_at_meteoritecentral.com=20
  Sent: Friday, July 18, 2003 12:21 PM
  Subject: Re: [meteorite-list] etching solution

  Hello, Mark and the list,

  think ferric chloride is not strong enough to etch Fe / Ni, but =
haven=B4t
  ever tried...;-

  You can find a quite good recipe for the etching solution from R.O.
  Nortons book Rocks from Space (page 415). There is also advised,
  how to check Ni from the potential meteorites (page 417).

  You should have the nitric acid from the drug store, but if possible,
  please, check the recipe first, you need also some other components
  to make the mix. If you use 100 % nitric acid, the result may be, if
  not a catastrophe, but quite near to that.

  And even with not so strong solutions, latex gloves and goggles =
should
  be worn to avoid to hurt yourself.

  take care,

  pekka

  Mark Jackson wrote:

    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

-------------------------------------------------------------------------=

---
    Do you Yahoo!?
    Free online calendar with sync to Outlook(TM).=20
--=20
Pekka Savolainen
Jokiharjuntie 4
FIN-71330 Rasala
FINLAND
+ 358 400 818 912
Group Home Page: http://www.smartgroups.com/groups/eurocoin
Group Email Address: eurocoin_at_smartgroups.com
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<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>If you dilute the acid always add the =
acid to the=20
water....never the otherway around.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Mark M.</FONT></DIV>
<BLOCKQUOTE=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
  <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
  <DIV=20
  style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
  <A title=3Dpekka.savolainen_at_dlc.fi =
href=3D"mailto:pekka.savolainen_at_dlc.fi">Pekka=20
  Savolainen</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A =
title=3Db0rtz2003_at_yahoo.com=20
  href=3D"mailto:b0rtz2003_at_yahoo.com">Mark Jackson</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Cc:</B> <A=20
  title=3Dmeteorite-list_at_meteoritecentral.com=20
  =
href=3D"mailto:meteorite-list_at_meteoritecentral.com">meteorite-list@meteor=
itecentral.com</A>=20
  </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Friday, July 18, 2003 =
12:21=20
PM</DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> Re: [meteorite-list] =
etching=20
  solution</DIV>
  <DIV><BR></DIV><BR>Hello, Mark and the list,<BR><BR>think ferric =
chloride is=20
  not strong enough to etch Fe / Ni, but haven=B4t<BR>ever =
tried...;-<BR><BR>You=20
  can find a quite good recipe for the etching solution from =
R.O.<BR>Nortons=20
  book Rocks from Space (page 415). There is also advised,<BR>how to =
check Ni=20
  from the potential meteorites (page 417).<BR><BR>You should have the =
nitric=20
  acid from the drug store, but if possible,<BR>please, check the recipe =
first,=20
  you need also some other components<BR>to make the mix. If you use 100 =
%=20
  nitric acid, the result may be, if<BR>not a catastrophe, but quite =
near=20
  to&nbsp; that.<BR><BR>And even with not so strong solutions,&nbsp; =
latex=20
  gloves and goggles should<BR>be worn to avoid to hurt =
yourself.<BR><BR>take=20
  care,<BR><BR>pekka<BR><BR>Mark Jackson wrote:<BR>
  <BLOCKQUOTE =
cite=3Dmid:20030718183649.39392.qmail_at_web60003.mail.yahoo.com=20
  type=3D"cite">
    <DIV>Dear List,</DIV>
    <DIV>&nbsp;</DIV>
    <DIV>I'm trying to locate etching solution capable of etching =
Widmanstatten=20
    patterns to view on meteorites. I understand it's nitric acid? I got =
the=20
    "bright" idea of checking my local electronic supply house for PC =
board=20
    etching solution and it seems that ferric chloride is used to etch =
copper=20
    from the breadboards. I got a B in college chemistry&nbsp;and that =
makes=20
    me&nbsp;question the&nbsp;usefulness&nbsp;of using ferric chloride =
on a=20
    meteo(rite/wrong). Am I correct in questioning this practice? Where =
can I=20
    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>
    <HR SIZE=3D1>
    Do you Yahoo!?<BR>Free <A=20
    =
href=3D"http://us.rd.yahoo.com/mail_us/tag/*http://calendar.yahoo.com">on=
line=20
    calendar</A> with sync to Outlook(TM). </BLOCKQUOTE><BR><PRE =
class=3Dmoz-signature cols=3D"$mailwrapcol">--=20
Pekka Savolainen
Jokiharjuntie 4
FIN-71330 Rasala
FINLAND
+ 358 400 818 912
Group Home Page: <A class=3Dmoz-txt-link-freetext =
href=3D"http://www.smartgroups.com/groups/eurocoin">http://www.smartgroup=
s.com/groups/eurocoin</A>
Group Email Address: <A class=3Dmoz-txt-link-abbreviated =
href=3D"mailto:eurocoin_at_smartgroups.com">eurocoin@smartgroups.com</A>
</PRE><BR></BLOCKQUOTE></BODY></HTML>
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Received on Fri 18 Jul 2003 03:27:34 PM PDT

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