phenolphthalein
Noun
-
A laxative used in many preparations under various trade names;
Also used as an acid-base indicator in titrations involving weak acids and strong bases because it is brilliant red at high alkalinity and colorless below pH 8 (synset 103928231)is a type of:- laxative - a mild cathartic
- acid-base indicator - an indicator that changes color on going from acidic to basic solutions
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