Prussian Blue

 1704–1706: Prussian Blue was accidentally discovered in Berlin by the pigment maker Johann Jacob Diesbach while attempting to produce a red pigment. He used potash contaminated with animal-derived materials supplied by the alchemist Johann Konrad Dippel, resulting in a deep blue compound instead of red.

 1710: The pigment began to be commercially manufactured in Berlin and became known as "Berlin Blue" or "Prussian Blue." 

 

1724: The first scientific description of Prussian Blue was published by the French chemist Étienne François Geoffroy, helping establish its chemical significance. 

 

 

Prussian Blue: Used In Diagnosis Of Sideroblastic Anemia 

 

Sideroblastic Anemia

Prussian Blue stain is a special histochemical stain used to detect iron deposits in tissues and bone marrow. It plays a crucial role in the diagnosis of sideroblastic anemia.

Principle

• Prussian Blue (Perls' stain) reacts with ferric iron (Fe³⁺) to form an insoluble blue pigment (ferric ferrocyanide). 

 

 

 

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