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What is an olfactory indicator and example?


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Olfactory indicator

  • There are compounds known as olfactory indicators that smell differently in acidic and basic solutions.
  • By using a procedure called olfactory titration, these types of indicators are employed in laboratories to determine whether a given solution is basic or acidic.

Examples of olfactory indicators

  • Vanilla extract and onion are two examples of olfactory indicators.

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