[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> This is a multi-part message in MIME format. ------=_NextPart_000_0014_01C40866.9B49ADC0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable 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 ------=_NextPart_000_0014_01C40866.9B49ADC0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=3DContent-Type content=3D"text/html; = charset=3Diso-8859-1"> <META content=3D"MSHTML 6.00.2800.1400" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff> <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> </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> </DIV> <DIV><SPAN class=3D152514918-12032004><FONT face=3DArial = color=3D#0000ff size=3D2>>=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> </FONT></SPAN></DIV> <DIV><SPAN class=3D152514918-12032004><FONT face=3DArial = color=3D#0000ff=20 size=3D2>></FONT></SPAN> for the money probably the best buy.<SPAN=20 class=3D152514918-12032004><FONT face=3DArial color=3D#0000ff=20 size=3D2> </FONT></SPAN></DIV> <DIV><SPAN class=3D152514918-12032004></SPAN> </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> <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. 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> </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. 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> </DIV> <DIV><SPAN class=3D152514918-12032004><FONT face=3DArial=20 size=3D2>--Rob</FONT></SPAN></DIV> <DIV><SPAN=20 class=3D152514918-12032004></SPAN> </DIV></BLOCKQUOTE></BODY></HTML>= ------=_NextPart_000_0014_01C40866.9B49ADC0-- Received on Fri 12 Mar 2004 08:17:05 PM PST |
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