Differently coloured strips of universal indicator paper illustrating the 'acid to alkali' spectrum in liquids, close up.

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Size: 4271px × 4092px
Photo credit: © Dorling Kindersley/UIG/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: acid, acidity, alkali, alkalis, background, chemical, chemistry, colour, colourful, equipment, image, indicator, liquids, litmus, measurement, paper, reaction, reactions, scientific, shot, spectrum, strips, studio, testing, tests, universal, white