iron-gallotannate ink


iron-gallotannate ink
   This ink is found in fountain pens, was used as early as the eighth century and with substantial improvement is still in use today. Iron salts are combined with gallotannic acid in an aqueous solution. This solution when applied to paper is first colorless but darkens quickly when oxidized by air.

Forensic science glossary. . 2012.


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.