Universal indicator acid-base colour range

Videonummer 11945180
Universal indicator acid-base colour range. Footage of the colour range of universal indicator solution demonstrated in flasks containing liquids of different pH values. The acid-base (pH) scale runs from 0 to 14. The central flask here displays a neutral pH (7), while liquids in the flasks at left are acidic and in the flasks at right are alkaline (basic). The colours and approximate pH values are, from left to right: red (pH 1), orange (pH 3), yellow (pH 5), light green (pH 7), dark green (pH 9), light purple (pH 12), and dark purple (pH 14).
Lizenzart: Lizenzpflichtig
Credit: Science Photo Library
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Länge: 7 Sekunden
Seitenverhältnis: 16:9
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