Close-up timelapse footage of a piece of red cabbage (Brassica oleracea) in a solution of alkaline sodium hydroxide, showing the change in colour. The anthocyanin pigment chemical in this plant acts as a natural acid-base indicator, here seen to change colour to yellow in alkali. This clip has been sped up 40 times. See clip K004 5184 for the cabbage in an acid. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Beautifulchemistry.net |
Modell-Rechte: | nicht erforderlich |
Länge: | 15 Sekunden |
Seitenverhältnis: | 16:9 |
Restrictions: | - |