Advertisement
Advertisement
phenolphthalein
[ fee-nawl-thal-een, -ee-in, -fthal-, -nol- ]
noun
- a white, crystalline compound, C 2 0 H 1 4 O 4 , used as an indicator in acid-base titration and as a laxative.
phenolphthalein
/ ˌfiːnɒlˈθeɪliːn; -ˈθæl-; -lɪɪn /
noun
- a colourless crystalline compound used in medicine as a laxative and in chemistry as an indicator. Formula: C 20 H 14 O 4
phenolphthalein
/ fē′nōl-thăl′ēn′ /
- A white or pale-yellow, crystalline powder used as an indicator for acid and basic solutions. In solutions that are either neutral or basic, it is colorless, while it is pink or red in solutions that are alkali. It is also used as a laxative and in making dyes. Chemical formula: C 20 H 14 O 4 .
Discover More
Word History and Origins
Origin of phenolphthalein1
Discover More
Example Sentences
It is undoubtedly true, however, as we have previously stated, that phenolphthalein is worthy of a trial.
The first page mentioned discusses the introduction of phenolphthalein into medicine.
Then boil for two minutes, neutralize exactly with dilute acetic acid (use phenolphthalein as the indicator).
Mould growth, on the other hand, is most vigourous in media that are strongly acid to phenolphthalein.
Litmus is insensitive to many weak organic acids the presence of which is readily indicated by phenolphthalein.
Advertisement
Word of the Day
[gal-uh-maw-free ]
Meaning and examplesStart each day with the Word of the Day in your inbox!
By clicking "Sign Up", you are accepting Dictionary.com Terms & Conditions and Privacy Policies.
Advertisement
Advertisement
Advertisement
Browse