What is the idealized chemical formula of the pigment synthesized by Johann Jacob Diesbach?
Johann Jacob Diesbach: Johann Jacob Diesbach (] ) was a Swiss pigment and dye producer known for first synthesizing a blue pigment known as Prussian blue (i.e. iron blue or Berlin blue). Prussian blue: Prussian blue is a dark blue pigment with the idealized chemical formula Fe7(CN)18 .
Fe7(CN)18