phenol phthalein (Meaning)
phenol phthalein ()
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.
Synonyms & Antonyms of phenol phthalein
No Synonyms and anytonyms found
phenol phthalein Sentence Examples
- Phenol phthalein is a widely used indicator in chemistry, turning from colorless to pink in basic solutions.
- The pH range of phenol phthalein is between 8.2 and 10.0, making it ideal for titrations involving weak acids and bases.
- The chemical formula of phenol phthalein is C20H14O4, and it is structurally similar to phenolphthalein.
- Phenol phthalein is commonly used in laboratory experiments, such as acid-base titrations and pH measurements.
- The colorless form of phenol phthalein is nonpolar, while the pink form is polar due to the deprotonation of the hydroxyl group.
- When phenol phthalein is added to a basic solution, it undergoes a chemical reaction that results in the formation of a phenolate ion, which is responsible for the pink color.
- The concentration of phenol phthalein in a solution affects the sharpness of the color change, with higher concentrations leading to a more distinct transition.
- Phenol phthalein is not recommended for use with strong bases, as it may undergo further reactions and lose its indicator properties.
- Alternatives to phenol phthalein include thymol blue, methyl orange, and litmus, which have different pH ranges and color changes.
- Phenol phthalein is a valuable tool for understanding acid-base chemistry and has been used for over a century in scientific research and practical applications.
FAQs About the word phenol phthalein
A white or yellowish white crystalline substance, C20H14O4, formed by condensation of the anhydride of phthalic acid and phenol. Its solution in alkalies is bri
No synonyms found.
No antonyms found.
Phenol phthalein is a widely used indicator in chemistry, turning from colorless to pink in basic solutions.
The pH range of phenol phthalein is between 8.2 and 10.0, making it ideal for titrations involving weak acids and bases.
The chemical formula of phenol phthalein is C20H14O4, and it is structurally similar to phenolphthalein.
Phenol phthalein is commonly used in laboratory experiments, such as acid-base titrations and pH measurements.
