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13D Dye Used As A Source Of Litmus

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beeben06 | 16:35 Sat 19th Oct 2013 | Quizzes & Puzzles
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I have ?r?h?l
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You could be right, mallyh: Orcein, also archil, orchil, lacmus, litmus, Citrus Red 2, and C.I. Natural Red 28, are names for dyes extracted from several species of lichen, also called orchella weeds, found in various parts of the world. The manufacture was described by Cocq in 1812 and in the UK in 1874 . ... http://en.wikipedia.org/wiki/Archil
16:40 Sat 19th Oct 2013
orchil
archil
orchil?
theyae th correct spellings
orchil - A red or violet dye obtained from certain lichens, used as a source of litmus, orcinol, and other pigments
that should have said archil and orchil are both the same
You could be right, mallyh:
Orcein, also archil, orchil, lacmus, litmus, Citrus Red 2, and C.I. Natural Red 28, are names for dyes extracted from several species of lichen, also called orchella weeds, found in various parts of the world. The manufacture was described by Cocq in 1812 and in the UK in 1874 . ...
http://en.wikipedia.org/wiki/Archil
in my dictionary both are there together
Final decision to the OP, if the first letter isn't cross-checked.
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Thanks a lot

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13D Dye Used As A Source Of Litmus

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