A coloring principle C14H6O2OH2 present madder and today produced unnaturally as an an orange purple crystalline substance from anthracene it really is found in making purple pigments like the Turkish reds and in dyeing
- an orange-red crystalline chemical utilized in making red pigments and in dyeing
- A coloring concept, C14H6O2(OH)2, within madder, and today produced artificially from anthracene. It produces the Turkish reds.
(n.) A coloring concept, C14H6O2(OH)2, present madder, and now created unnaturally from anthracene. It creates the Turkish reds.
The dibrominated product so obtained was then fused with caustic potash, the melt dissolved in water, and on the addition of hydrochloric acid to the solution, alizarin was precipitated.