turnsole (dye)

  1. Home
  2. top of the aat hierarchies
  3. Materials Facet
  4. Materials (hierarchy name)
  5. materials (substances)
  6. [materials by function]
  7. colorant (material)
  8. dye
  9. [dye by composition or origin]
  10. natural dye
  11. vegetable dye
  12. turnsole
Scope note
A natural purple colorant and dye obtained from the seeds of Chrozophora tinctoria. It is not lightfast. Turnsole is an acid-base indicator dye that is red in acid and blue to violet in alkalis. It was used as a violet watercolor pigment in 14th century Italian manuscripts and as a purple textile dye from medieval times to the 17th century. It is used as a food colorant, as in Dutch cheese and certain liquors.
turnsole
Accepted term: 18-Nov-2024