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. red pigment
10. synthetic inorganic red pigment

Narrower term/s

• cadmium red lithopone

Anotations

Scope note:

A permanent, deep red pigment containing cadmium. Earliest pigments were composed of pure cadmium sulfoselenide, first patented in Germany in 1892. Variations in the proportions of the cadmium and selenide produce as range of colors from orange to dark maroon. By 1926, cadmium reds were being co-precipitated with barium sulfate to form less expensive cadmium lithopone pigments.