Hierarchy classification:

1. top of the aat hierarchies
2. Materials Facet
3. Materials (hierarchy name)
4. materials (substances)
5. [materials by form]
6. [materials by chemical form]
7. compounds (materials)

Anotations

Scope note:

Yellow, soluble crystalline compound used as an etching liquid, as a fungicide in paper, in dyes and pigments. In reaction with iron ions it becomes ferric ferrocyanide, the chief component of Prussian blue.