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Subject: Cathodic reduction of silver corrosion products

Cathodic reduction of silver corrosion products

From: Diana Hamann <dhamann2000<-at->
Date: Monday, February 9, 2009
As posted to the Conservation DistList Instance: 21:59 Saturday, May
3, 2008 ("Electrolytic cathodic reduction"), I have been carrying
out an indoor air corrosivity determination in the museum where I
work. The electrolytic reduction of the corrosion products on the
probes was done according to the ASTM B-825 standard. The
electrolyte used is KCl 0,1 M; and a saturated calomel electrode as
reference. The silver coupons show two and possibly more reduction

It would be of interest to assign them to specific compounds, even
if it is not essential for corrosivity category calculations.

I would like to know if data are available, on reduction potentials
of silver corrosion compounds in this electrolyte. I would greatly
appreciate any reference,

Diana Hamann
Museo Historico Provincial de Rosario

                  Conservation DistList Instance 22:46
                 Distributed: Friday, February 13, 2009
                       Message Id: cdl-22-46-026
Received on Monday, 9 February, 2009

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