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roccella

/rɒˈtʃɛl.ə/

Tradução: Substantivo que designa o líquen do gênero Roccella, fonte do corante orceína e do tornassol.

1 verbete

noun

formalcommon/rɒˈtʃɛl.ə/

A noun referring to a source of the dye archil and of litmus, typically a type of lichen.

  • 🇵🇹Substantivo que designa o líquen do gênero Roccella, fonte do corante orceína e do tornassol.
  1. A source of dyes C2 formal scientific

    A type of lichen, especially from the genus Roccella, used historically to produce the purple dye archil and the pH indicator litmus.

    • Roccella lichens were once a primary source of the purple dye archil.
    • Litmus, derived from Roccella, is used in chemistry labs to test acidity.
    • The ancient traders valued Roccella for its dye-producing properties.

    🇵🇹Fonte de corantes

    Sinônimos: archilorchil