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Revision as of 10:47, 26 June 2020 by MDerrick (talk | contribs) (Description)
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The chemical name for dyes extracted from seeral species of lichen, commonly known as "Orchella weeds"

Orchil dyed wool
Image credit w. Carter

Synonyms and Related Terms

CI Natural Red 28; archil; orchil; lacmus;

Other Properties

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Composition C16H10N2O2
CAS 482-89-3
Melting Point 390-392
Molecular Weight mol. wt. = 262.26
Refractive Index >1.662

Hazards and Safety

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Fisher Scientific: MSDS

Additional Information

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° H.Schweppe, "Indigo and Woad", Artists Pigments, Volume 3, E. West FitzHugh (ed.), Oxford University Press: Oxford, 1997.

° Pigments Through the Ages: Indigo

Comparisons and related information

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Characteristics of Common Blue Pigments

Additional Images

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Sources Checked for Data in Record

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