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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
/ -lɪɪn; ËŒfiËnÉ’lˈθeɪliËn; -ˈθæl- /
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
/ ´Úŧ′nűô-³Ù³óă±ô′ŧ²Ô′ /
- 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 .
˜yÐÄvlog History and Origins
Origin of phenolphthalein1
Example Sentences
Still other dietary supplement products for weight loss contained the laxative phenolphthalein or prescription diuretics.
A chemical called phenolphthalein -- not approved by FDA -- was found in a Chinese product called Zi Xiu Tang Beauty Face & Figure Capsule.
Some of the supplements also contain another chemical used previously in over-the-counter laxative products, a dye called phenolphthalein.
Add 50 to 100 cc. hot, neutral alcohol, and titrate with N/2, N/4 or N/10 sodium hydroxide depending on the fatty acid content, using phenolphthalein as indicator.
Titrate the distillate with N/10 alkali, using phenolphthalein as an indicator.
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