<div dir="ltr"><div dir="ltr">Hi Sergio,<div><br></div><div>I understand your plight, smelly bones are something we all have to deal with at some point in this field!</div><div><br></div><div>Personally I don't recommend soaking skeletal material in ammonia as ammonia will break down the collagen, potentially resulting in brittleness and delamination. I have seen this first hand. I have had success using a weak ammonia solution (4-10%) in water, scrubbed onto the oily surface with a tooth brush. This creates a soap scum that can be wiped off with paper towels. Other safe solvents that might offer some odor relief include ethanol or acetone wiped over the surface. Also investigate hot vapour degreasing which is used in some museums to remove old and fresh fatty secretions from bones. Correct me if I am wrong, but I think Berlin have one they use for big mammals. </div><div><br></div><div>All the best,</div><div><br></div><div>Bethany Palumbo,</div><div>Head of Conservation Unit,</div><div>Museum of Natural History Denmark</div><div><br></div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, 8 Nov 2024 at 13:07, Sergio Montagud <<a href="mailto:sergio.montagud@gmail.com">sergio.montagud@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div class="msg5833523549331237899">
<div lang="ES" style="overflow-wrap: break-word;">
<div class="m_-5782316548822393537WordSection1">
<p><span lang="EN-US">Good morning,<u></u><u></u></span></p>
<p><span lang="EN-US">This is a query for those working in skeleton preservation. We have some recently acquired, disarticulated specimens prepared by different taxidermists. The issue is that some of them, especially the larger ones, still emit a very unpleasant
odor that we haven’t been able to remove, even by soaking them in water with ammonia. Is there an effective and proven method for eliminating this bad smell from the bones, which I assume is caused by residual fat still trapped in them?<u></u><u></u></span></p>
<p><span lang="EN-US">Thank you very much.<u></u><u></u></span></p>
<p><span lang="EN-US">Sergio Montagud<u></u><u></u></span></p>
<p>--<u></u><u></u></p>
<p>********************************<u></u><u></u></p>
<p>Sergio Montagud Alario<u></u><u></u></p>
<p>Museu [UV] Història Natural<u></u><u></u></p>
<p>Universitat de València<u></u><u></u></p>
<p>e-mail: <span lang="EN-US"><a href="mailto:sergio.montagud@uv.es" target="_blank"><span lang="ES-TRAD"><span lang="ES-TRAD">sergio.montagud@uv.es</span></span></a></span><u></u><u></u></p>
<p><span lang="EN-US">********************************<u></u><u></u></span></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
</div>
</div>
_______________________________________________<br>
Nhcoll-l mailing list<br>
<a href="mailto:Nhcoll-l@mailman.yale.edu" target="_blank">Nhcoll-l@mailman.yale.edu</a><br>
<a href="https://mailman.yale.edu/mailman/listinfo/nhcoll-l" rel="noreferrer" target="_blank">https://mailman.yale.edu/mailman/listinfo/nhcoll-l</a><br>
<br>
_______________________________________________<br>
NHCOLL-L is brought to you by the Society for the Preservation of<br>
Natural History Collections (SPNHC), an international society whose<br>
mission is to improve the preservation, conservation and management of<br>
natural history collections to ensure their continuing value to<br>
society. See <a href="http://www.spnhc.org" rel="noreferrer" target="_blank">http://www.spnhc.org</a> for membership information.<br>
Advertising on NH-COLL-L is inappropriate.<br>
</div></blockquote></div></div>