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Baldwin, Bruce W.; Kuntzleman, Thomas S. – Journal of Chemical Education, 2018
The separation of chamazulene from hydrophilic contaminants present in blue tansy oil provides a visually engaging example of two common techniques: extraction and thin-layer chromatography (TLC). This application uses liquid CO[subscript 2] as a lipophilic solvent to pull a brilliant blue hydrocarbon molecule, chamazulene, out of or through a…
Descriptors: Science Instruction, Science Laboratories, College Science, Organic Chemistry