Difference between revisions of "Orcein"
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== Description == | == Description == | ||
The chemical name for the red dyes extracted from several lichens of the genera ''Evernia'', ''Roccella'', ''Ramalina'' and ''Lecanoria'', such as ''Evernia prunastri'', ''Roccella phycopsis'' and ''Ramalina scopulorum''. | The chemical name for the red dyes extracted from several lichens of the genera ''Evernia'', ''Roccella'', ''Ramalina'' and ''Lecanoria'', such as ''Evernia prunastri'', ''Roccella phycopsis'' and ''Ramalina scopulorum''. | ||
| − | [[File:Orchil dyed wool.jpg||thumb|Orchil dyed wool<br>Image credit | + | [[File:Orchil dyed wool.jpg||thumb|Orchil dyed wool<br>Image credit W. Carter]] |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
CI Natural Red 28; archil; orchil; lacmus; | CI Natural Red 28; archil; orchil; lacmus; | ||
| + | == Risks == | ||
| + | ThermoFisher: [https://fscimage.fishersci.com/msds/60430.htm SDS] | ||
== Physical and Chemical Properties == | == Physical and Chemical Properties == | ||
Revision as of 08:24, 28 October 2020
Description
The chemical name for the red dyes extracted from several lichens of the genera Evernia, Roccella, Ramalina and Lecanoria, such as Evernia prunastri, Roccella phycopsis and Ramalina scopulorum.
Synonyms and Related Terms
CI Natural Red 28; archil; orchil; lacmus;
Risks
ThermoFisher: SDS
Physical and Chemical Properties
Orcein is soluble in ethanol. It is an indicator dye that turns blue in alkaline solutions.
| CAS | 1400-62-3 |
|---|