The approximate age of iron gallotannate ink on document can be determined with the help of
A. TLC
B. Colorimetric analysis of ink
C. Chloride ion diffusion of ink
D. Change in preservative
Answer:C
The approximate age of iron gallotannate ink on document can be determined with the help of
A. TLC B. Colorimetric analysis of ink C. Chloride ion diffusion of ink D. Change in preservative