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<title>Telling formalin from ethanol</title>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">Something to keep in mind-<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D">Based on our sampling, by chemical analysis, of fluids in tanks of preserved animals, if the animals were fixed or previously preserved in formalin there will
 always be a significant amount present in the alcohol.&nbsp; By significant, I don&#8217;t mean by quantity but as a hazard.&nbsp; I would caution against doing much sniff testing.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:#1F497D"><o:p>&nbsp;</o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;">From:</span></b><span style="font-size:10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;"> nhcoll-l-bounces@mailman.yale.edu [mailto:nhcoll-l-bounces@mailman.yale.edu]
<b>On Behalf Of </b>Best, Megan<br>
<b>Sent:</b> Thursday, March 06, 2014 9:03 AM<br>
<b>To:</b> nhcoll-l@mailman.yale.edu<br>
<b>Subject:</b> [Nhcoll-l] Telling formalin from ethanol<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p>&nbsp;</o:p></p>
<p><span lang="EN-CA" style="font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">Hello all,</span><o:p></o:p></p>
<p><span lang="EN-CA" style="font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">I&#8217;ve been benefitting from the conversations on this listserv for some time now,</span><span lang="EN-CA">
</span><span lang="EN-CA" style="font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">really fascinating and useful stuff.</span><span lang="EN-CA">&nbsp;</span><span lang="EN-CA" style="font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"> I manage a research collection, mostly of marine invertebrates,
 and I have a question:</span><o:p></o:p></p>
<p><span lang="EN-CA" style="font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">Is there an easy way to tell if</span><span lang="EN-CA">
</span><span lang="EN-CA" style="font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">a fixative is formalin or ethanol?&nbsp;</span><span lang="EN-CA">
</span><span lang="EN-CA" style="font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">Aside from the smell test!</span><span lang="EN-CA">&nbsp;</span><span lang="EN-CA" style="font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"> I&#8217;m looking to organise</span><span lang="EN-CA">
</span><span lang="EN-CA" style="font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">hundreds of jars from various benthic surveys, and we want to switch out anything that&#8217;s in formalin to ethanol.&nbsp; The formalin is buffered so I don&#8217;t think a pH difference would be a strong
 indicator.&nbsp; Any ideas/advice would be appreciated.</span><o:p></o:p></p>
<p><span lang="EN-CA" style="font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;">-Megan</span><o:p></o:p></p>
<p><b><span lang="EN-CA" style="font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:green">Megan Best</span></b><span lang="EN-CA" style="font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"><br>
<span style="color:green">Invertebrate Taxonomy</span><br>
</span><span lang="EN-CA" style="font-size:7.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:green">tel: 902.426.2791&nbsp;&nbsp; email:
<a href="mailto:megan.best@dfo-mpo.gc.ca">megan.best@dfo-mpo.gc.ca</a></span><span lang="EN-CA"><br>
</span><span lang="EN-CA" style="font-size:7.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:green">Ocean and Ecosystem Sciences Division | Division des sciences de l'écosystème et de la mer</span><span lang="EN-CA" style="font-size:7.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;"><br>
<span style="color:green">Department of Fisheries and Oceans | Ministère des Pêches et Oceans</span></span><span lang="EN-CA"><br>
</span><span lang="EN-CA" style="font-size:7.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:green">Government of Canada | Government du Canada</span><span lang="EN-CA"><br>
</span><span lang="EN-CA" style="font-size:7.5pt;font-family:&quot;Calibri&quot;,&quot;sans-serif&quot;;color:green">Bedford Institute of Oceanography | Institut Océanographique de Bedford</span><o:p></o:p></p>
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