Phenolphthalein — definition

1. phenolphthalein (Noun)

1 definition

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 colourless below pH 8.

2 types of
acid-base indicator laxative