Lectionary Calendar
Monday, April 7th, 2025
the Fifth Week of Lent
the Fifth Week of Lent
There are 13 days til Easter!
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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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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.
