Flaking orpiment paint layer

From: Siska Genbrugge <*siska<-at-*> Date: Monday, February 9, 2009 · siska<-at-

During the analysis of a painted object I noticed that a paint layer
with a high amount arsenic is selectively flaking. Has somebody
encountered some similar problems with arsenic containing paint
layers?

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                  Conservation DistList Instance 22:46
                 Distributed: Friday, February 13, 2009
                       Message Id: cdl-22-46-024
                                  ***