Vocab Bloom Hub

resorcinolphthalein

/ˌrɛzɔːˈsɪnɒlˌfθæliːɪn/

1 entry

noun

/ˌrɛzɔːˈsɪnɒlˌfθæliːɪn/C2formalscientific
  • ruЖёлтый краситель, остающийся видимым даже при сильном разбавлении, используемый в качестве адсорбционного индикатора в аналитической химии, особенно при добавлении нитрата серебра к хлориду натрия для осаждения хлорида серебра, становящийся розовым, когда ионы хлора больше не остаются и адсорбируются отрицательные ионы флуоресцеина.

A yellow dye that remains visible even when highly diluted, used as an absorption indicator in analytical chemistry, particularly when silver nitrate is added to sodium chloride to precipitate silver chloride, turning pink when no chloride ions remain and negative fluorescein ions are absorbed.

  1. Chemical dye and indicatorC2formalscientific

    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).

    ruХимический краситель и индикатор

    • The chemist used resorcinolphthalein to detect the endpoint of the titration.
    • A small amount of resorcinolphthalein turned the solution pink.
    • Resorcinolphthalein is a sensitive indicator for chloride ions.

    Synonymsfluorescein

Forms
  • resorcinolphthaleins plural form
  • resorcinolphthaleins' possessive plural form
  • resorcinolphthalein's possessive singular form