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<p class="MsoNormal"><a name="_Hlk43465280">Hello NHCOLL-L<o:p></o:p></a></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk43465280"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk43465280">I have a question I like to post on NHCOLL-L.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk43465280">Below is my question with 5 images.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk43465280">Let me know if you have any question.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk43465280">Thank you.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk43465280"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk43465280">Kind regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk43465280"><o:p></o:p></span></p>
<p class="MsoNormal" style="line-height:150%"><span style="mso-bookmark:_Hlk43465280"><b><span style="font-size:10.0pt;line-height:150%;font-family:"Arial",sans-serif;mso-fareast-language:EN-AU">Clare Kim</span></b></span><span style="mso-bookmark:_Hlk43465280"><span style="font-size:10.0pt;line-height:150%;font-family:"Arial",sans-serif;mso-fareast-language:EN-AU">
<o:p></o:p></span></span></p>
<p class="MsoNormal" style="line-height:150%"><span style="mso-bookmark:_Hlk43465280"><span style="font-size:10.0pt;line-height:150%;font-family:"Arial",sans-serif;mso-fareast-language:EN-AU">Digitisation Conservator</span></span><span style="mso-bookmark:_Hlk43465280"><span style="font-size:10.0pt;line-height:150%;font-family:"Arial",sans-serif;mso-fareast-language:EN-AU">
| </span></span><span style="mso-bookmark:_Hlk43465280"><span lang="EN-US" style="font-size:10.0pt;line-height:150%;font-family:"Arial",sans-serif;color:black;mso-fareast-language:EN-AU">Collection Care and Conservation<o:p></o:p></span></span></p>
<p class="MsoNormal" style="line-height:150%"><span style="mso-bookmark:_Hlk43465280"><span lang="EN-US" style="font-size:10.0pt;line-height:150%;font-family:"Arial",sans-serif;color:black;mso-fareast-language:ZH-CN">Australian Museum Research Institute</span></span><span style="mso-bookmark:_Hlk43465280"><span lang="EN-US" style="font-size:10.0pt;line-height:150%;font-family:"Arial",sans-serif;color:black;mso-fareast-language:EN-AU"><o:p></o:p></span></span></p>
<p class="MsoNormal" style="line-height:150%"><span style="mso-bookmark:_Hlk43465280"><b><span style="font-size:10.0pt;line-height:150%;font-family:"Arial",sans-serif;mso-fareast-language:EN-AU">Australian Museum</span></b></span><span style="mso-bookmark:_Hlk43465280"><span style="font-size:10.0pt;line-height:150%;font-family:"Arial",sans-serif;mso-fareast-language:EN-AU">
1 William Street Sydney NSW 2010 Australia <o:p></o:p></span></span></p>
<p class="MsoNormal" style="line-height:150%"><span style="mso-bookmark:_Hlk43465280"><b><span style="font-size:10.0pt;line-height:150%;font-family:"Arial",sans-serif;mso-fareast-language:EN-AU">T</span></b></span><span style="mso-bookmark:_Hlk43465280"><span style="font-size:10.0pt;line-height:150%;font-family:"Arial",sans-serif;mso-fareast-language:EN-AU">
61 2 9320 6010 <b>M </b>61 413 904 865 </span></span><span style="mso-bookmark:_Hlk43465280"><span style="mso-fareast-language:EN-AU"><br>
</span></span><a href="http://www.australian.museum/"><span style="mso-bookmark:_Hlk43465280"><span style="color:windowtext;mso-fareast-language:EN-AU;text-decoration:none"><img border="0" width="154" height="63" style="width:1.6041in;height:.6562in" id="Picture_x0020_309590279" src="cid:image001.png@01D6673B.97E53280" alt="signature_357450491"></span></span><span style="mso-bookmark:_Hlk43465280"></span></a><span style="mso-bookmark:_Hlk43465280"><span style="font-size:12.0pt;line-height:150%;font-family:"Times New Roman",serif;mso-fareast-language:EN-AU"><o:p></o:p></span></span></p>
<p class="MsoNormal" style="line-height:150%"><span style="mso-bookmark:_Hlk43465280"></span><a href="https://www.facebook.com/australianmuseum"><span style="mso-bookmark:_Hlk43465280"><b><span lang="EN" style="font-size:8.0pt;line-height:150%;font-family:"Arial",sans-serif;color:#595959;mso-fareast-language:EN-AU">Facebook</span></b></span><span style="mso-bookmark:_Hlk43465280"></span></a><span style="mso-bookmark:_Hlk43465280"><b><span lang="EN" style="font-size:8.0pt;line-height:150%;font-family:"Arial",sans-serif;color:#595959;mso-fareast-language:EN-AU">
| </span></b></span><span style="mso-bookmark:_Hlk43465280"></span><a href="https://twitter.com/austmus"><span style="mso-bookmark:_Hlk43465280"><b><span lang="EN" style="font-size:8.0pt;line-height:150%;font-family:"Arial",sans-serif;color:#595959;mso-fareast-language:EN-AU">Twitter</span></b></span><span style="mso-bookmark:_Hlk43465280"></span></a><span style="mso-bookmark:_Hlk43465280"><span style="font-size:8.0pt;line-height:150%;font-family:"Arial",sans-serif;color:#595959;mso-fareast-language:EN-AU">
</span></span><span style="mso-bookmark:_Hlk43465280"><b><span style="font-size:8.0pt;line-height:150%;font-family:"Arial",sans-serif;color:#595959;mso-fareast-language:EN-AU">|
</span></b></span><span style="mso-bookmark:_Hlk43465280"></span><a href="https://instagram.com/australianmuseum/?hl=en"><span style="mso-bookmark:_Hlk43465280"><b><span lang="EN" style="font-size:8.0pt;line-height:150%;font-family:"Arial",sans-serif;color:#595959;mso-fareast-language:EN-AU">Instagram</span></b></span><span style="mso-bookmark:_Hlk43465280"></span></a><span style="mso-bookmark:_Hlk43465280"><b><span lang="EN" style="font-size:8.0pt;line-height:150%;font-family:"Arial",sans-serif;color:#595959;mso-fareast-language:EN-AU">
| </span></b></span><span style="mso-bookmark:_Hlk43465280"></span><a href="https://www.youtube.com/user/austmus"><span style="mso-bookmark:_Hlk43465280"><b><span lang="EN" style="font-size:8.0pt;line-height:150%;font-family:"Arial",sans-serif;color:#595959;mso-fareast-language:EN-AU">YouTube</span></b></span><span style="mso-bookmark:_Hlk43465280"></span></a><span style="mso-bookmark:_Hlk43465280"><span style="mso-fareast-language:EN-AU"><o:p></o:p></span></span></p>
<p class="MsoNormal" style="line-height:150%"><span style="mso-bookmark:_Hlk43465280"><b><span lang="EN" style="font-size:8.0pt;line-height:150%;font-family:"Arial",sans-serif;color:#595959;mso-fareast-language:EN-AU"><o:p> </o:p></span></b></span></p>
<p class="MsoNormal" style="line-height:150%"><span style="mso-bookmark:_Hlk43465280"><i><span lang="EN" style="font-size:10.0pt;line-height:150%;color:#201F1E;mso-fareast-language:EN-AU">I respect and acknowledge the Gadigal people of the Eora Nation as the
First Peoples and Traditional Custodians of the land and waterways on which the Australian Museum stands.</span></i></span><span style="mso-bookmark:_Hlk43465280"><i><span lang="EN" style="font-size:10.0pt;line-height:150%;color:#201F1E;mso-fareast-language:EN-AU"><o:p></o:p></span></i></span></p>
<p class="xmsonormal"><span style="mso-bookmark:_Hlk43465280"><o:p> </o:p></span></p>
<p class="xmsonormal"><span style="mso-bookmark:_Hlk43465280"><o:p> </o:p></span></p>
<p class="xmsonormal"><span style="mso-bookmark:_Hlk43465280"><o:p> </o:p></span></p>
<p class="xmsonormal"><span style="mso-bookmark:_Hlk43465280"><o:p> </o:p></span></p>
<p class="xmsonormal"><span style="mso-bookmark:_Hlk43465280">Unknown light-brown coloured particles were found sitting inside the old Entomology drawers. The particles are fine and easily transported by air when lifting the lid from the drawer. They are structured
in delicate form of white coloured crystals intertwined in few different types of dirt, mostly in colour brown (Figure 4). The particles were analysed by ATR-FTIR spectroscopy and it appears to be phthalic acid (Figure 5). Phthalic acid is commonly produced
by the catalytic oxidation of naphthalene. <o:p></o:p></span></p>
<p class="xmsonormal"><span style="mso-bookmark:_Hlk43465280">Has anyone seen/experienced this type of acid in their collections? Is phthalic acid a reaction from naphthalene and cork/wood? According to safety datasheet, phthalic acid could cause skin irritation,
serious eye damage and may cause respiratory irritation. How are other institutions dealing with phthalic acid? The location of acid is randomly spread across the drawer (Figure 1) and often entomology specimens are in fragile condition. Other than wearing
appropriate PPE, does anyone have a method for its safe removal?<o:p></o:p></span></p>
<p class="xmsonormal"><span style="mso-bookmark:_Hlk43465280">Thank you.<o:p></o:p></span></p>
<p class="xmsonormal"><span style="mso-bookmark:_Hlk43465280"> <o:p></o:p></span></p>
<p class="xmsonormal"><span style="mso-bookmark:_Hlk43465280"><img border="0" width="418" height="363" style="width:4.3541in;height:3.7812in" id="x_Picture_x0020_13" src="cid:image002.jpg@01D6673B.97E53280"> <img border="0" width="414" height="364" style="width:4.3125in;height:3.7916in" id="x_Picture_x0020_12" src="cid:image003.jpg@01D6673B.97E53280"><o:p></o:p></span></p>
<p class="xmsonormal"><span style="mso-bookmark:_Hlk43465280">Figure 1-2 (Left to Right): Location of particles in the drawer (example); Detail image of particles
<o:p></o:p></span></p>
<p class="xmsonormal"><span style="mso-bookmark:_Hlk43465280"> <o:p></o:p></span></p>
<p class="xmsonormal"><span style="mso-bookmark:_Hlk43465280"><img border="0" width="422" height="315" style="width:4.3958in;height:3.2812in" id="x_Picture_x0020_10" src="cid:image004.jpg@01D6673B.97E53280"><img border="0" width="412" height="315" style="width:4.2916in;height:3.2812in" id="x_Picture_x0020_11" src="cid:image005.jpg@01D6673B.97E53280"><o:p></o:p></span></p>
<p class="xmsonormal"><span style="mso-bookmark:_Hlk43465280">Figure 3-4: Microscope images of sampled particles from Entomology drawer 40x magnification (left) & 160x magnification (right)<o:p></o:p></span></p>
<p class="xmsonormal"><span style="mso-bookmark:_Hlk43465280"> <o:p></o:p></span></p>
<p class="xmsonormal"><span style="mso-bookmark:_Hlk43465280"> <o:p></o:p></span></p>
<p class="xmsonormal"><span style="mso-bookmark:_Hlk43465280"><img border="0" width="602" height="344" style="width:6.2708in;height:3.5833in" id="x_Picture_x0020_5" src="cid:image006.jpg@01D6673B.97E53280"><o:p></o:p></span></p>
<p class="xmsonormal"><span style="mso-bookmark:_Hlk43465280">Figure 5: Comparison of known spectra of phthalic acid (bottom, in blue) with spectra of unknown particles from Entomology collection drawer (top, in red).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk43465280"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk43465280"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-bookmark:_Hlk43465280"><o:p> </o:p></span></p>
<span style="mso-bookmark:_Hlk43465280"></span>
<p class="MsoNormal"><o:p> </o:p></p>
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