[meteorite-list] AD:Not a happy 'Campo'
From: Matson, Robert <ROBERT.D.MATSON_at_meteoritecentral.com>
Date: Thu Apr 22 10:32:49 2004 Message-ID: <AF564D2B9D91D411B9FE00508BF1C86904EE5A70_at_US-Torrance.mail.saic.com> This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_001_01C40863.CD586B88 Content-Type: text/plain; charset="iso-8859-1" Hi Howard, et. al., > Most Pure ethanol still has 4% water. Why not use 99% isopropanol, > for the money probably the best buy. 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_001_01C40863.CD586B88 Content-Type: text/html; charset="iso-8859-1" <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1"> <META content="MSHTML 6.00.2800.1106" name=GENERATOR></HEAD> <BODY> <DIV><SPAN class=152514918-12032004><FONT face=Arial color=#0000ff size=2>Hi Howard, et. al.,</FONT></SPAN></DIV> <DIV><SPAN class=152514918-12032004><FONT face=Arial color=#0000ff size=2></FONT></SPAN> </DIV> <DIV><SPAN class=152514918-12032004><FONT face=Arial color=#0000ff size=2>> </FONT></SPAN>Most Pure ethanol still has 4% water. Why not use 99% isopropanol,<SPAN class=152514918-12032004><FONT face=Arial color=#0000ff size=2> </FONT></SPAN></DIV> <DIV><SPAN class=152514918-12032004><FONT face=Arial color=#0000ff size=2>></FONT></SPAN> for the money probably the best buy.<SPAN class=152514918-12032004><FONT face=Arial color=#0000ff size=2> </FONT></SPAN></DIV> <DIV><SPAN class=152514918-12032004></SPAN> </DIV> <DIV><SPAN class=152514918-12032004><FONT face=Arial color=#0000ff size=2>I think denatured alcohol is higher than 96% ethyl alcohol; however, the</FONT></SPAN></DIV> <DIV><SPAN class=152514918-12032004><FONT face=Arial color=#0000ff size=2>impurities </FONT></SPAN><SPAN class=152514918-12032004><FONT face=Arial color=#0000ff size=2>put in</FONT> <FONT face=Arial color=#0000ff size=2>to make it undrinkable (and thus comparatively cheap</FONT></SPAN></DIV> <DIV><SPAN class=152514918-12032004><FONT face=Arial color=#0000ff size=2>since it isn't taxed like liquor) remind me that I should look into what</FONT></SPAN></DIV> <DIV><SPAN class=152514918-12032004><FONT face=Arial color=#0000ff size=2>those impurities ARE. Could be that when denatured alcohol evaporates,</FONT></SPAN></DIV> <DIV><SPAN class=152514918-12032004><FONT face=Arial color=#0000ff size=2>it leaves behind the sticky residue of whatever those impurities happen</FONT></SPAN></DIV> <DIV><SPAN class=152514918-12032004><FONT face=Arial color=#0000ff size=2>to be, and that might not be so good for meteorites.</FONT></SPAN></DIV> <DIV><SPAN class=152514918-12032004><FONT face=Arial color=#0000ff size=2></FONT></SPAN> </DIV> <DIV><SPAN class=152514918-12032004><FONT face=Arial color=#0000ff size=2>I'd be surprised if isopropanol was any cheaper per gallon than denatured</FONT></SPAN></DIV> <DIV><SPAN class=152514918-12032004><FONT face=Arial color=#0000ff size=2>alcohol -- always seems pretty expensive at the drugstore. And if you're</FONT></SPAN></DIV> <DIV><SPAN class=152514918-12032004><FONT face=Arial color=#0000ff size=2>using either ethanol or isopropanol as a soaking solution with sodium</FONT></SPAN></DIV> <DIV><SPAN class=152514918-12032004><FONT face=Arial color=#0000ff size=2>hydroxide, you're going to have to add water anyway -- I don't think</FONT></SPAN></DIV> <DIV><SPAN class=152514918-12032004><FONT face=Arial color=#0000ff size=2>NaOH is </FONT></SPAN><SPAN class=152514918-12032004><FONT face=Arial color=#0000ff size=2>very soluble in either one.</FONT></SPAN></DIV> <DIV><SPAN class=152514918-12032004><FONT face=Arial size=2></FONT></SPAN> </DIV> <DIV><SPAN class=152514918-12032004><FONT face=Arial size=2>--Rob</FONT></SPAN></DIV> <DIV><SPAN class=152514918-12032004></SPAN> </DIV></BODY></HTML> ------_=_NextPart_001_01C40863.CD586B88-- Received on Fri 12 Mar 2004 01:57:01 PM PST |
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