配方类型:

INKS AND MARKING COMPOUNDS

配方说明:

Solid Writing Ink (Japanese Patnet 3366 (1952))

配方组成:

Iron Sulfate/4
Tannic Acid/3
Mix, dry and mill with
50% Alcohol/16
Sulfamic Acid/8
Pyrogallic Acid/1

配制方法:

Mix, mold, and dry.