What does resorcinolphthalein mean?

Definitions for resorcinolphthalein

This dictionary definitions page includes all the possible meanings, example usage and translations of the word resorcinolphthalein.

Princeton's WordNet

  1. fluorescein, fluoresceine, fluorescent dye, resorcinolphthaleinnoun

    a yellow dye that is visible even when highly diluted; used as an absorption indicator when silver nitrate solution is added to sodium chloride in order to precipitate silver chloride (turns pink when no chloride ions are left in solution and negative fluorescein ions are then absorbed)


  1. resorcinolphthaleinnoun



  1. resorcinolphthalein

    Fluorescein is an organic compound and dye based on the xanthene tricyclic structural motif, formally belonging to triarylmethine dyes family. It is available as a dark orange/red powder slightly soluble in water and alcohol. It is widely used as a fluorescent tracer for many applications.The color of its aqueous solutions is green by reflection and orange by transmission (its spectral properties are dependent on pH of the solution), as can be noticed in bubble levels, for example, in which fluorescein is added as a colorant to the alcohol filling the tube in order to increase the visibility of the air bubble contained within (thus enhancing the precision of the instrument). More concentrated solutions of fluorescein can even appear red (because under these conditions nearly all incident emission is re-absorbed by the solution). It is on the World Health Organization's List of Essential Medicines.


  1. resorcinolphthalein

    Resorcinolphthalein is a chemical compound used as a pH indicator in titrations. It changes color depending on the pH of the solution, making it useful in determining the acidity or alkalinity of a solution. It is most commonly used in biological research and medical testing.

Matched Categories

How to pronounce resorcinolphthalein?

How to say resorcinolphthalein in sign language?


  1. Chaldean Numerology

    The numerical value of resorcinolphthalein in Chaldean Numerology is: 3

  2. Pythagorean Numerology

    The numerical value of resorcinolphthalein in Pythagorean Numerology is: 5


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"resorcinolphthalein." Definitions.net. STANDS4 LLC, 2023. Web. 22 Sep. 2023. <https://www.definitions.net/definition/resorcinolphthalein>.

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    • A. opaque
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