Acid migration

Kathie Bordelon <kbordelo<-a t->mcneese< . >edu> writes

>If acid-free envelopes contain acidic newsprint for several years,
>can I assume that the acid migrates to the envelope? And, can I also
>assume that if the newsprint is removed the envelope will remain
>acidic unless treated?

I think a safe answer would be "yes" given the research of Vincent
Daniels (1984;1986) and that by Slavin and Hanlan (1992) in
Restaurator, 13 as well as Wendy Smith's experiments (1985) in the
Bulletin ICCM Australia v. 11 n.s 1 & 2.

Niccolo Caldararo
Conservation Art Service

                                  ***
                  Conservation DistList Instance 11:23
                Distributed: Tuesday, September 9, 1997
                       Message Id: cdl-11-23-007
                                  ***