Caption: 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.

Release details: Model release not required. Property release not required.

Keywords: 4k, acid-base, alkali, alkaline, anthocyanin, base, basic, botanical, botany, brassica oleracea, changing, chemical, chemistry, colour change, demonstration, education, hydrochloric acid, indicator, natural, ph, plant, purple, red cabbage, science, sped up, speeded up, timelapse, uhd, vegetable, yellow

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Red cabbage in alkali

K004/5185 Rights Managed

Downloadable master

Duration: 00:00:15.09

Frame size: 1920x1080

Frame rate: 23.98

Audio: No

Format: QuickTime, Photo JPEG 100%, progressive scan, square pixels

File size: 488.0M


Capture format: Panasonic GH4

Frame size: 3840x2160

Codec: H.264

Please contact Science Photo Library if you require the original, or other formats.


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