Phenolphthalein Definition

This is the chemical structure of phenolphthalein.
This is the chemical structure of phenolphthalein. Ben Mills/PD

Phenolphthalein Definition: Phenolphthalein is an organic compound often used as an pH indicator.

Phenolphthalein turns pink in pH greater than 8.3 and colorless in acidic solutions.

The chemical formula for phenolphthalein is C20H14O4.

Make Phenolphthalein Indicator

Format
mla apa chicago
Your Citation
Helmenstine, Anne Marie, Ph.D. "Phenolphthalein Definition." ThoughtCo, Nov. 29, 2014, thoughtco.com/definition-of-phenolphthalein-605503. Helmenstine, Anne Marie, Ph.D. (2014, November 29). Phenolphthalein Definition. Retrieved from https://www.thoughtco.com/definition-of-phenolphthalein-605503 Helmenstine, Anne Marie, Ph.D. "Phenolphthalein Definition." ThoughtCo. https://www.thoughtco.com/definition-of-phenolphthalein-605503 (accessed May 25, 2018).