[meteorite-list] AD:Not a happy 'Campo'

From: Rosemary Hackney <ltcrose_at_meteoritecentral.com>
Date: Thu Apr 22 10:32:49 2004
Message-ID: <001701c40898$e83ed6a0$0671d6d1_at_default>

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Usually Methanol is an impurity. It is poisonous if taken internally.=20

Rosie
  ----- Original Message -----=20
  From: Matson, Robert=20
  To: 'Howard Wu' ; mark ford ; Bob C. ; =
meteorite-list_at_meteoritecentral.com=20
  Sent: Friday, March 12, 2004 12:57 PM
  Subject: [meteorite-list] AD:Not a happy 'Campo'


  Hi Howard, et. al.,

> Most Pure ethanol still has 4% water. Why not use 99% isopropanol,=20
> for the money probably the best buy.=20

  I think denatured alcohol is higher than 96% ethyl alcohol; however, =
the
  impurities put in to make it undrinkable (and thus comparatively cheap
  since it isn't taxed like liquor) remind me that I should look into =
what
  those impurities ARE. Could be that when denatured alcohol =
evaporates,
  it leaves behind the sticky residue of whatever those impurities =
happen
  to be, and that might not be so good for meteorites.

  I'd be surprised if isopropanol was any cheaper per gallon than =
denatured
  alcohol -- always seems pretty expensive at the drugstore. And if =
you're
  using either ethanol or isopropanol as a soaking solution with sodium
  hydroxide, you're going to have to add water anyway -- I don't think
  NaOH is very soluble in either one.

  --Rob

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<DIV><FONT face=3DArial size=3D2>Usually Methanol is an impurity. It is =
poisonous if=20
taken internally. </FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Rosie</FONT></DIV>
<BLOCKQUOTE dir=3Dltr=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=3DROBERT.D.MATSON_at_saic.com=20
  href=3D"mailto:ROBERT.D.MATSON_at_saic.com">Matson, Robert</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A =
title=3Dfreewu2000_at_yahoo.com=20
  href=3D"mailto:freewu2000_at_yahoo.com">'Howard Wu'</A> ; <A =
title=3Dmarkf_at_ssl.gb.com=20
  href=3D"mailto:markf_at_ssl.gb.com">mark ford</A> ; <A=20
  title=3Dr.cucchiara_at_comcast.net =
href=3D"mailto:r.cucchiara_at_comcast.net">Bob C.</A>=20
  ; <A 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, March 12, 2004 =
12:57=20
  PM</DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> [meteorite-list] =
AD:Not a happy=20
  'Campo'</DIV>
  <DIV><BR></DIV>
  <DIV><SPAN class=3D152514918-12032004><FONT face=3DArial =
color=3D#0000ff size=3D2>Hi=20
  Howard, et. al.,</FONT></SPAN></DIV>
  <DIV><SPAN class=3D152514918-12032004><FONT face=3DArial =
color=3D#0000ff=20
  size=3D2></FONT></SPAN>&nbsp;</DIV>
  <DIV><SPAN class=3D152514918-12032004><FONT face=3DArial =
color=3D#0000ff size=3D2>&gt;=20
  </FONT></SPAN>Most Pure ethanol still has 4% water. Why not use 99%=20
  isopropanol,<SPAN class=3D152514918-12032004><FONT face=3DArial =
color=3D#0000ff=20
  size=3D2>&nbsp;</FONT></SPAN></DIV>
  <DIV><SPAN class=3D152514918-12032004><FONT face=3DArial =
color=3D#0000ff=20
  size=3D2>&gt;</FONT></SPAN> for the money probably the best buy.<SPAN=20
  class=3D152514918-12032004><FONT face=3DArial color=3D#0000ff=20
  size=3D2>&nbsp;</FONT></SPAN></DIV>
  <DIV><SPAN class=3D152514918-12032004></SPAN>&nbsp;</DIV>
  <DIV><SPAN class=3D152514918-12032004><FONT face=3DArial =
color=3D#0000ff size=3D2>I=20
  think denatured alcohol is higher than 96% ethyl alcohol; however,=20
  the</FONT></SPAN></DIV>
  <DIV><SPAN class=3D152514918-12032004><FONT face=3DArial =
color=3D#0000ff=20
  size=3D2>impurities </FONT></SPAN><SPAN =
class=3D152514918-12032004><FONT=20
  face=3DArial color=3D#0000ff size=3D2>put in</FONT>&nbsp;<FONT =
face=3DArial=20
  color=3D#0000ff size=3D2>to make it undrinkable (and thus =
comparatively=20
  cheap</FONT></SPAN></DIV>
  <DIV><SPAN class=3D152514918-12032004><FONT face=3DArial =
color=3D#0000ff=20
  size=3D2>since it isn't taxed like liquor) remind me that I should =
look into=20
  what</FONT></SPAN></DIV>
  <DIV><SPAN class=3D152514918-12032004><FONT face=3DArial =
color=3D#0000ff=20
  size=3D2>those impurities ARE.&nbsp; Could be that when denatured =
alcohol=20
  evaporates,</FONT></SPAN></DIV>
  <DIV><SPAN class=3D152514918-12032004><FONT face=3DArial =
color=3D#0000ff size=3D2>it=20
  leaves behind the sticky residue of whatever those impurities=20
  happen</FONT></SPAN></DIV>
  <DIV><SPAN class=3D152514918-12032004><FONT face=3DArial =
color=3D#0000ff size=3D2>to=20
  be, and that might not be so good for meteorites.</FONT></SPAN></DIV>
  <DIV><SPAN class=3D152514918-12032004><FONT face=3DArial =
color=3D#0000ff=20
  size=3D2></FONT></SPAN>&nbsp;</DIV>
  <DIV><SPAN class=3D152514918-12032004><FONT face=3DArial =
color=3D#0000ff size=3D2>I'd=20
  be surprised if isopropanol was any cheaper per gallon than=20
  denatured</FONT></SPAN></DIV>
  <DIV><SPAN class=3D152514918-12032004><FONT face=3DArial =
color=3D#0000ff=20
  size=3D2>alcohol -- always seems pretty expensive at the =
drugstore.&nbsp; And if=20
  you're</FONT></SPAN></DIV>
  <DIV><SPAN class=3D152514918-12032004><FONT face=3DArial =
color=3D#0000ff=20
  size=3D2>using either ethanol or isopropanol as a soaking solution =
with=20
  sodium</FONT></SPAN></DIV>
  <DIV><SPAN class=3D152514918-12032004><FONT face=3DArial =
color=3D#0000ff=20
  size=3D2>hydroxide, you're going to have to add water anyway -- I =
don't=20
  think</FONT></SPAN></DIV>
  <DIV><SPAN class=3D152514918-12032004><FONT face=3DArial =
color=3D#0000ff size=3D2>NaOH=20
  is </FONT></SPAN><SPAN class=3D152514918-12032004><FONT face=3DArial =
color=3D#0000ff=20
  size=3D2>very soluble in either one.</FONT></SPAN></DIV>
  <DIV><SPAN class=3D152514918-12032004><FONT face=3DArial=20
  size=3D2></FONT></SPAN>&nbsp;</DIV>
  <DIV><SPAN class=3D152514918-12032004><FONT face=3DArial=20
  size=3D2>--Rob</FONT></SPAN></DIV>
  <DIV><SPAN=20
class=3D152514918-12032004></SPAN>&nbsp;</DIV></BLOCKQUOTE></BODY></HTML>=


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Received on Fri 12 Mar 2004 08:17:05 PM PST


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