Saved Bookmarks
| 1. |
How phenol is converted into Fluorescein? |
|
Answer» Explanation: Fluorescein - Wikipedia Fluorescein was first SYNTHESIZED by Adolf von Baeyer in 1871. It can be prepared from phthalic anhydride and resorcinol in the presence of zinc chloride via the Friedel-Crafts REACTION. A SECOND method to prepare fluorescein uses methanesulfonic ACID as a Brønsted acid catalyst. Solubility in water: Slightly Chemical formula: C20H12O5 Melting point: 314 to 316 °C (597 to 601 °F; 587 to 589 K) Density: 1.602 g/mL Uses |
|