Lectionary Calendar
Thursday, June 19th, 2025
the Week of Proper 6 / Ordinary 11
the Week of Proper 6 / Ordinary 11
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Bible Dictionaries
Phenol Phthalein
Webster's Dictionary
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A white or yellowish white crystalline substance, C20H14O4, formed by condensation of the anhydride of phthalic acid and phenol. Its solution in alkalies is brilliant red, but is decolorized by acids. This reaction, being very delicate, is used as an indicator.
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Text Courtesy of BibleSupport.com. Used by Permission.
These files are public domain.
Text Courtesy of BibleSupport.com. Used by Permission.
Bibliography Information
Webster, Noah. Entry for 'Phenol Phthalein'. Noah Webster's American Dictionary. https://www.studylight.org/dictionaries/eng/web/p/phenol-phthalein.html. 1828.
Webster, Noah. Entry for 'Phenol Phthalein'. Noah Webster's American Dictionary. https://www.studylight.org/dictionaries/eng/web/p/phenol-phthalein.html. 1828.
