[Nhcoll-l] Phenolic lids in alcohol

[Callomon,Paul]

Folks,

We have noticed that in cases where a phenolic resin cap is immersed in alcohol (70-80% ethanol) for long periods (such as when a vial with a sample is included in a larger alcohol-preserved lot) the alcohol becomes discolored. I presume the resin is leaching something. Does anyone know of any published work on this?

Paul Callomon
Collection Manager, Malacology, Invertebrate Paleontology and General Invertebrates
________________________________
Academy of Natural Sciences of Drexel University, Philadelphia
1900 Benjamin Franklin Parkway, Philadelphia PA 19103-1195, USA
callomon at ansp.org<mailto:callomon at ansp.org> Tel 215-405-5096 - Fax 215-299-1170

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