- Number of Tests possible: 50 slides.
- Mayer Haematoxylin: 1 x 100 ml.
- Acid Buffer and Potassium Ferrocyanide: 10 x 5 ml.
In an acid environment, ferric ions react with potassium ferrocyanide what leads to a precipitate called Ferric Ferrocyanide (Prussian blue). It points out the presence of a pathological pigment: Haemosiderin.