Table of Contents
1. phenolphthalein
noun. ['ˌfiːnɑːlfˈθeɪlən, ˌfɛnɑːlfˈθeɪlən'] 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.
Synonyms
Rhymes with Phenolphthalein
- venezuelan
- whalen
- stalon
- walen
- veillon
- taillon
- neylon
- malan
- keylon
- kalen
- kalan
- galen
- galan
- calan
- baylen
- balan
- bailon
- alun
Sentences with phenolphthalein
1. Noun, singular or mass
Place a small amount of sodium hydroxide in the first glass and a little phenolphthalein in the second.
2. Adverb
Sodium hydroxide is a base, so when you add phenolphthalein, the solution turns pink.
3. Adjective
The reason for the visible light absorption is the structure of the pink form of the phenolphthalein indicator.
