Phytate treatment

From: Femke Segers <*info<-at-*> Date: Tuesday, February 14, 2012 · info<-at-

I am a paper conservator. My colleague and I are trying the phytate
treatment on maps with iron gall ink. For alkalisation, calcium
bicarbonate is used. However this is an elaborate preparation. Has
anyone used calcium hydroxide in this type of treatment? What is the
benefit of the bicarbonate?

Femke Segers
Paper conservator
+32 479 268 166

                                  ***
                  Conservation DistList Instance 25:38
                 Distributed: Monday, February 20, 2012
                       Message Id: cdl-25-38-032
                                  ***