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Neutral buffer solution

K004/0906

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Credit

RHYS LEWIS & MINH TAN PHAM, AHS, DECD, UNISA / SCIENCE PHOTO LIBRARY RHYS LEWIS & MINH TAN PHAM, AHS, DECD, UNISA / SCIENCE PHOTO LIBRARY

Caption

Sample of a buffer solution (pH 7) being poured from a measuring cylinder into a beaker. The green colour is due to universal indicator. A buffer is a solution that resists changes to its pH. Typically it contains a weak acid and a salt of the acid, and the equilibrium between them adjusts when acid or alkali is added, maintaining a constant pH.

Release details

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Downloadable Master

  • Duration: 00:00:13
  • Audio: No
  • Format: Photo - JPEG

Original

  • Capture Format: Sony FS700
  • Codec: H.264
  • Interlaced: No
  • Frame Size: 1920 x 1080

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