gallein (Meaning)
Webster
gallein (n.)
A red crystalline dyestuff, obtained by heating together pyrogallic and phthalic acids.
Synonyms & Antonyms of gallein
No Synonyms and anytonyms found
gallein Sentence Examples
- Gallein, an anthraquinone derivative, exhibits a distinct purple color.
- The synthesis of gallein involves the oxidation of pyrogallol with iodine.
- Gallein has been employed as a pH indicator, changing color from yellow to blue-violet as the pH increases.
- The absorption maximum of gallein occurs at a wavelength of approximately 565 nanometers.
- Gallein finds applications in analytical chemistry due to its sensitivity to iron ions and calcium ions.
- The addition of sodium hydroxide to a solution of gallein results in the formation of a deep purple complex.
- Gallein can be used as a mordant for dyeing cotton and wool fabrics.
- The pKa value of gallein is approximately 10.5, indicating its weak acidic properties.
- Gallein exhibits fluorescence properties, emitting a greenish-yellow light.
- The use of gallein as a biological stain has been explored in biomedical research.
FAQs About the word gallein
A red crystalline dyestuff, obtained by heating together pyrogallic and phthalic acids.
No synonyms found.
No antonyms found.
Gallein, an anthraquinone derivative, exhibits a distinct purple color.
The synthesis of gallein involves the oxidation of pyrogallol with iodine.
Gallein has been employed as a pH indicator, changing color from yellow to blue-violet as the pH increases.
The absorption maximum of gallein occurs at a wavelength of approximately 565 nanometers.
