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</o:shapelayout></xml><![endif]--></head><body lang=DA link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I doubt that what Mandy talks of is glass degradation, or at least if it is, then it is probably formalin-induced somehow. I see precisely the same thing which Mandy describes, and, like in her case, in glasses that have contained formalin, probably also with a component of seawater, although I never thought about the latter detail myself.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Tom<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Tom Schiøtte<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Natural History Museum of Denmark (Zoology)<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Universitetsparken 15<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>DK-2100 Copenhagen OE<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Denmark<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>TSchioette@snm.ku.dk<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Fra:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> nhcoll-l-bounces@mailman.yale.edu [mailto:nhcoll-l-bounces@mailman.yale.edu] <b>På vegne af </b>Evelyn.Ayre@pch.gc.ca<br><b>Sendt:</b> 10. marts 2014 13:30<br><b>Til:</b> Mandy Reid<br><b>Cc:</b> Anders Hallan; 'nhcoll-l@mailman.yale.edu'; nhcoll-l-bounces@mailman.yale.edu<br><b>Emne:</b> Re: [Nhcoll-l] Translucent residue<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Hi Mandy,</span><br><br><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>This sounds to me as though you are seeing glass degradation. Sometimes called glass disease, this phenomena manifests as iridescence and flaking and is caused by a leaching out of the alkali component of the glass. I have only seen this on archaeological glass, but it's possible that this is what's happening to your glassware. What kind of glassware do you have? And is it very old?</span><br><br><b><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Evelyn Ayre</span></b><span lang=EN-US><br></span><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Conservator - Intern | Restauratrice - Stagiaire</span><span lang=EN-US><br></span><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Preservation Services | Services de préservation</span><span lang=EN-US><br></span><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Canadian Conservation Institute | Institut canadien de conservation </span><span lang=EN-US><br></span><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Department of Canadian Heritage | Ministère du Patrimoine canadien </span><span lang=EN-US><br></span><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'>1030 Innes Road | 1030 chemin Innes</span><span lang=EN-US><br></span><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Ottawa ON Canada K1B 4S7</span><span lang=EN-US><br></span><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><a href="mailto:evelyn.ayre@pch.gc.ca"><span lang=EN-US>evelyn.ayre@pch.gc.ca</span></a></span><span lang=EN-US><br></span><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Telephone | Téléphone 1 (613) 998-3721 ext | poste 235</span><span lang=EN-US><br></span><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Facsimile | Télécopieur 1 (613) 998-4721</span><span lang=EN-US><br></span><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Government of Canada | Gouvernement du Canada</span><span lang=EN-US><br><br></span><img border=0 width=16 height=16 id="_x0000_i1025" src="cid:image001.gif@01CF3D11.F56C2F40" alt="Inactive hide details for Mandy Reid ---10/03/2014 01:20:01 AM---Apologies that this is off the current topic, but does anyone "><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#424282'>Mandy Reid ---10/03/2014 01:20:01 AM---Apologies that this is off the current topic, but does anyone know what the shiny, flaky and slightl</span><span lang=EN-US><br><br></span><span lang=EN-US style='font-size:7.5pt;font-family:"Arial","sans-serif";color:#5F5F5F'>From: </span><span lang=EN-US style='font-size:7.5pt;font-family:"Arial","sans-serif"'>Mandy Reid <</span><span style='font-size:7.5pt;font-family:"Arial","sans-serif"'><a href="mailto:Mandy.Reid@austmus.gov.au"><span lang=EN-US>Mandy.Reid@austmus.gov.au</span></a></span><span lang=EN-US style='font-size:7.5pt;font-family:"Arial","sans-serif"'>></span><span lang=EN-US><br></span><span lang=EN-US style='font-size:7.5pt;font-family:"Arial","sans-serif";color:#5F5F5F'>To: </span><span lang=EN-US style='font-size:7.5pt;font-family:"Arial","sans-serif"'>"'nhcoll-l@mailman.yale.edu'" <</span><span style='font-size:7.5pt;font-family:"Arial","sans-serif"'><a href="mailto:nhcoll-l@mailman.yale.edu"><span lang=EN-US>nhcoll-l@mailman.yale.edu</span></a></span><span lang=EN-US style='font-size:7.5pt;font-family:"Arial","sans-serif"'>>, </span><span lang=EN-US><br></span><span lang=EN-US style='font-size:7.5pt;font-family:"Arial","sans-serif";color:#5F5F5F'>Cc: </span><span lang=EN-US style='font-size:7.5pt;font-family:"Arial","sans-serif"'>Anders Hallan <</span><span style='font-size:7.5pt;font-family:"Arial","sans-serif"'><a href="mailto:Anders.Hallan@austmus.gov.au"><span lang=EN-US>Anders.Hallan@austmus.gov.au</span></a></span><span lang=EN-US style='font-size:7.5pt;font-family:"Arial","sans-serif"'>></span><span lang=EN-US><br></span><span lang=EN-US style='font-size:7.5pt;font-family:"Arial","sans-serif";color:#5F5F5F'>Date: </span><span lang=EN-US style='font-size:7.5pt;font-family:"Arial","sans-serif"'>10/03/2014 01:20 AM</span><span lang=EN-US><br></span><span lang=EN-US style='font-size:7.5pt;font-family:"Arial","sans-serif";color:#5F5F5F'>Subject: </span><span lang=EN-US style='font-size:7.5pt;font-family:"Arial","sans-serif"'>[Nhcoll-l] Translucent residue</span><span lang=EN-US><br></span><span lang=EN-US style='font-size:7.5pt;font-family:"Arial","sans-serif";color:#5F5F5F'>Sent by: </span><span style='font-size:7.5pt;font-family:"Arial","sans-serif"'><a href="mailto:nhcoll-l-bounces@mailman.yale.edu"><span lang=EN-US>nhcoll-l-bounces@mailman.yale.edu</span></a></span><span lang=EN-US><o:p></o:p></span></p><div class=MsoNormal><hr size=2 width="100%" noshade style='color:#8091A5' align=left></div><p class=MsoNormal><br><br><br><span style='font-size:10.0pt;font-family:"Calibri","sans-serif"'>Apologies that this is off the current topic, but does anyone know what the shiny, flaky and slightly mirror-like reside is that forms on the sides of glassware that has previously contained 5-10% seawater/formalin that has been buffered using sodium bicarbonate? It is very difficult to wash of glassware as a rule but it sometimes flakes off in small particles.</span><br><span style='font-size:10.0pt;font-family:"Calibri","sans-serif"'> </span><br><span style='font-size:10.0pt;font-family:"Calibri","sans-serif"'>I am wondering whether it is a harmful if inadvertently inhaled.</span><br><span style='font-size:10.0pt;font-family:"Calibri","sans-serif"'> </span><br><span style='font-size:10.0pt;font-family:"Calibri","sans-serif"'>Any ideas?</span><br><span style='font-size:10.0pt;font-family:"Calibri","sans-serif"'> </span><br><span style='font-size:10.0pt;font-family:"Calibri","sans-serif"'>Thanks</span><br><span style='font-size:10.0pt;font-family:"Calibri","sans-serif"'>Mandy</span><br><span style='font-size:10.0pt;font-family:"Calibri","sans-serif"'> </span><br><b><span style='font-size:7.5pt;font-family:"Arial","sans-serif";color:#0046AD'>Dr Mandy Reid</span></b><span 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