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The Colours & Chemistry of pH Indicators

17.06.2016

© Compound Interest

The Colours & Chemistry of pH Indicators

Most of us, chemists or otherwise, have probably come across pH indicators at one point or another. I’d be surprised if there’s anyone out there who hasn’t, back in school, carried out the standard experiment of adding universal indicator to a variety of household liquids to identify them as acidic or alkaline. You might not be aware of the large range of different indicators that can be used to identify varying pHs, however, or the reasons behind the colour changes observed.

Topics
  • Methylorange
  • Thymolblau
  • Bromthymolblau
  • Phenolrot
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