Recreate History: Making Declaration of Independence Ink with Dollar Store Ingredients! #ScienceatHome Iron tannins in iron gall ink refer to the complex formed when tannic acid from natural sources like tea reacts with iron ions from iron supplements. This reaction creates ferrous tannate, which oxidizes to form the dark, permanent pigment characteristic of iron gall ink. This pigment is responsible for the ink's durability and rich color. #Chemistry #IndenpendenceDay #4thofJuly #Happy4thofJuly
