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Torenia flower in alkali

K004/5183

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Credit

BEAUTIFULCHEMISTRY.NET / SCIENCE PHOTO LIBRARY BEAUTIFULCHEMISTRY.NET / SCIENCE PHOTO LIBRARY

Caption

Close-up timelapse footage of the petals of a Torenia fournieri flower in a solution of alkaline sodium hydroxide, showing the change in colour. The pigment chemicals in this flower act as a natural acid-base indicator, here seen to change colour to yellow in the presence of an alkali. This clip has been sped up 40 times. See clip K004 5182 for the flower in an acid.

Release details

Model release not required. Property release not required.

Clip Properties:

  • Duration: 00:00:17
  • Audio: No
  • Original Frame Size: 3840x2160
  • Interlaced: No
  • Capture Format: Panasonic GH4
  • Codec: H.264

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