Testing pH with universal indicator paper. To check the pH of a solution of acidified iron (II) sulfate a strip of universal indicator paper is clippe

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Testing pH with universal indicator paper. To check the pH of a solution of acidified iron (II) sulfate a strip of universal indicator paper is clipped from the roll. When the orange paper changes colour it can be checked against a chart to discover the acidity or alkalinity of a liquid.

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Size: 4161px × 4200px
Photo credit: © MARTYN F. CHILLMAID/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: acidified, beaker, box, chart, chemistry, experiment, glove, indicator, iron, nitrile, paper, ph, protective, science, sulfate, sulphate, testing, universal