PHENOLPHTHALEIN is a
15
letter word starting with
P
and ending with
N
Definitions & Synonyms
noun -
PHENOLPHTHALEIN is a chemical compound often used as a pH indicator in titrations, that turns colorless in acidic solutions and pink in basic solutions.
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