resorcinolphthalein

Noun
  1. 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) (synset 115012254)
    referred to in: solution - a homogeneous mixture of two or more substances; frequently (but not necessarily) a liquid solution
    is a type of:
    • absorption indicator - an indicator used in reactions that involve precipitation
    • dye, dyestuff - a usually soluble substance for staining or coloring e.g. fabrics or hair
    subtypes: bromeosin, eosin - a red fluorescent dye resulting from the action of bromine on fluorescein; used in cosmetics and as a biological stain for studying cell structures
    same as: fluorescein, fluoresceine, fluorescent dye

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