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Red cabbage indicator

Red cabbage indicator

C028/8144

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Credit

MARTYN F. CHILLMAID / SCIENCE PHOTO LIBRARY MARTYN F. CHILLMAID / SCIENCE PHOTO LIBRARY

Caption

Red cabbage indicator. A simple indicator can be made from the pigment anthocyanin in red cabbage by liquidising the leaves in water and then filtering the solution. Its normal purple colour turns green in alkali and red in acid.

Release details

Model release not required. Property release not required.

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