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Table 2 Average pH of plain area of the rag sample without verdigris after deacidification treatment

From: Investigation of the stabilization of verdigris-containing rag paper by wet chemical treatments

Before treatment

After Ca(HCO3)2

After Mg(HCO3)2

6.8 ± 0.03

Spraying on a suction table

7.40 ± 0.15

7.43 ± 0.09

Brushing on the verso

6.95 ± 0.15

7.07 ± 0.05

Floating

7.41 ± 0.01

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