Phenolphthalein - Wikipedia
WebPhenolphthalein (/ f ɛ ˈ n ɒ l (f) θ ə l iː n / [citation needed] feh-NOL(F)-thə-leen) is a chemical compound with the formula C 20 H 14 O 4 and is often written as "HIn", "HPh", "phph" or simply "Ph" in shorthand notation. Phenolphthalein is often used as an indicator in acid–base titrations.
Phenolphthalein | pH indicator, acid-base titration, indicator dye
WebPhenolphthalein, (C20H14O4), an organic compound of the phthalein family that is widely employed as an acid-base indicator. As an indicator of a solution’s pH, phenolphthalein is colourless below pH 8.5 and attains a pink to deep red hue above pH 9.0. Phenolphthalein is a potent laxative, which.
Phenolphthalein | C20H14O4 | CID 4764 - PubChem
WebPhenolphthalein | C20H14O4 | CID 4764 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more.
Phenolphthalein Indicator - Science Notes and Projects
WebJan 19, 2022 · Phenolphthalein indicator is a pH indicator solution that is colorless under acidic and extremely alkaline conditions and fuchsia pink under ordinary alkaline conditions. Here is a look at the colors at different pH ranges, the chemistry of the color change, how to make phenolphthalein indicator, and uses of the chemical.
Phenolphthalein - 15th Report on Carcinogens - NCBI Bookshelf
WebDec 21, 2021 · In rodents, phenolphthalein caused oxidative stress and altered tumor-suppressor gene pathways, both of which are mechanisms believed to be involved in human cancer. Since phenolphthalein was listed in the Ninth Report on Carcinogens, an additional study relevant to mechanisms of carcinogenesis has been identified.
Phenolphthalein | Magnificent molecules | RSC Education
WebDec 24, 2018 · It took until the 1990s to show that phenolphthalein was carcinogenic in rodents, and IARC, the International Agency for Research on Cancer, has declared phenolphthalein to be a Group 2B carcinogen, meaning that it possibly causes cancer in humans. Even so, it was banned as an over-the-counter laxative in the US and many …
Phenolphthalein - an overview | ScienceDirect Topics
WebPhenolphthalein. Phenolphthalein was once widely used as a laxative for self-treatment, often camouflaged in chocolate and thus liable to abuse or accidental use; it is now obsolete. Rashes of various types are repeatedly reported, sometimes with pruritus.
Phenolphthalein | Chemistry Online
WebApr 22, 2024 · What is phenolphthalein? Phenolphthalein (molecular formula C 20 H 14 O 4) is a pH indicator. In acidic solutions it remains colorless, but in the presence of basic solutions it takes on a pinkish color with a turning point between pH = 8.0 (colorless) to pH = 9.8 (magenta or pinkish).
Phenolphthalein - NIST Chemistry WebBook
WebSep 5, 2013 · Phenolphthalein. Formula: C 20 H 14 O 4. Molecular weight: 318.3228. IUPAC Standard InChI: InChI=1S/C20H14O4/c21-15-9-5-13 (6-10-15)20 (14-7-11-16 (22)12-8-14)18-4-2-1-3-17 (18)19 (23)24-20/h1-12,21-22H. Copy Sheet of paper on top of another sheet. IUPAC Standard InChIKey: KJFMBFZCATUALV-UHFFFAOYSA-N.
Phenolphthalein - Wikiwand
WebPhenolphthalein ( feh-NOL(F)-thə-leen) is a chemical compound with the formula C20H14O4 and is often written as "HIn", "HPh", "phph" or simply "Ph" in shorthand notation. Phenolphthalein is often used as an indicator in acid–base titrations. For this application, it turns colorless in acidic solutions and pink in basic solutions.
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