Difference between revisions of "Cudbear"
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== Description == | == Description == | ||
| − | A violet color natural dye obtained from lichens. Cudbear in the name given to the dye by a Scottish chemist, C. Gordon after he discovered, then patented, the process for making it in the 18th century. Previously, the dye, [ | + | A violet color natural dye obtained from lichens. Cudbear in the name given to the dye by a Scottish chemist, C. Gordon after he discovered, then patented, the process for making it in the 18th century. Previously, the dye, [[archil]], had been produced in Italy by a secret process for several hundred years. Cudbear is the source of litmus dye. |
[[Category:Materials database]] | [[Category:Materials database]] | ||
Revision as of 14:03, 13 January 2014
Description
A violet color natural dye obtained from lichens. Cudbear in the name given to the dye by a Scottish chemist, C. Gordon after he discovered, then patented, the process for making it in the 18th century. Previously, the dye, Archil, had been produced in Italy by a secret process for several hundred years. Cudbear is the source of litmus dye.