Phenolphthalein Meaning in English

word

US

ˌfɛnɑɫfˈθeɪɫən/, /ˌfinɑɫfˈθeɪɫən

fi-NOL-THAY-leen

UK

fiːnɒlˈfθeɪliːn

fee-NOL-THAY-leen

Definition

Phenolphthalein is a chemical compound used as an indicator in acid-base titrations. It changes color to show whether a solution is acidic or basic.

Usage & Nuances

Phenolphthalein is mostly used in chemistry labs and scientific contexts, especially with acids and bases. It is rarely mentioned outside scientific or educational settings.

• Spanish: fenolftaleína
• Portuguese (BR): fenolftaleína
• Portuguese (PT): fenolftaleína
• Chinese (Simplified): 酚酞
• Chinese (Traditional): 酚酞
• Hindi: फेनॉल्फ्थलीन
• Arabic: فينولفثالين
• Bengali: ফিনলফথ্যালিন
• Russian: фенолфталеин
• Japanese: フェノールフタレイン
• Vietnamese: phenolphtalein
• Korean: 페놀프탈레인
• Turkish: fenolftalein
• Urdu: فینولفتھالین
• Indonesian: fenolftalein

Example Sentences

Phenolphthalein turns pink in a basic solution.

basic

We used phenolphthalein to test if the liquid was acidic.

basic

The color change of phenolphthalein helps us know the pH.

basic

If the solution stays colorless, phenolphthalein shows it’s still acidic.

natural

For our chemistry lab, we needed a few drops of phenolphthalein to complete the experiment.

natural

Don’t forget to add phenolphthalein before starting the titration.

natural