Hierarchy classification:

1. top of the aat hierarchies
2. Materials Facet
3. Materials (hierarchy name)
4. materials (substances)
5. [materials by function]
6. colorant (material)
7. pigments
8. [pigment by color]
9. blue pigment
10. synthetic organic blue pigment

Narrower term/s

• Antwerp blue (pigment)
• Chinese blue
• engineer's blue
• Brunswick blue
• bronze blue
• Milori blue
• Oriental blue
• soluble blue
• steel blue (Prussian blue)
• Turnbull's blue

Anotations

Scope note:

Any of several deep blue pigments consisting chiefly of ferric ferrocyanide; first developed in Berlin in 1704 by Diesbach. It is made by adding ferric chloride to a boiling solution of hexacyano ferrate. Prussian blue has deep blue, finely divided particles that are transparent in watercolors; it has high tinting strength and is stable to light, although it turns brown in the presence of alkalis or heat. It is used as a colorant in cyanotypes, blueprint paper, laundry blue, linoleum, leather, plastics, paper, cosmetics, and formerly as a textile dye for silk, cotton, and wool, where it was mordanted with ferric oxide.