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Введение в продукт
| Parameter Category | Details |
|---|---|
| Basic Information | |
| Common Name | 2',4'-Dichloroacetophenone; 2,4-Dichloroacetophenone |
| IUPAC Name | 1-(2,4-dichlorophenyl)ethanone |
| CAS Number | 2234-16-4 |
| EINECS Number | 218-796-9 |
| Chemical Formula | C₈H₆Cl₂O |
| Molecular Weight | 173.04 g/mol |
| Structural Formula | (2,4-Cl₂C₆H₃)C(O)CH₃ (acetophenone with chlorine substituents at 2- and 4-positions of the benzene ring) |
| Physical Properties | |
| Appearance | White to pale yellow crystalline powder or flakes |
| Melting Point | 44-47 °C |
| Boiling Point | 245-248 °C (at 1 atm); 126-128 °C (at 1.33 kPa, reduced pressure) |
| Solubility | Slightly soluble in water (<0.1 g/100 mL at 20 °C); freely soluble in ethanol, ether, benzene, chloroform, acetone, and most organic solvents |
| Density | 1.324 g/cm³ (25 °C) |
| Refractive Index | 1.5560 (50 °C) |
| Flash Point (Closed Cup) | 110 °C (flammable liquid/solid above this temperature) |
| Vapor Pressure | 0.02 kPa (25 °C) |
| Chemical Properties | |
| Functional Groups | Ketone (-CO-CH₃), Aromatic chlorine (-Cl) |
| Key Reactions | 1. Nucleophilic addition to carbonyl group (e.g., Grignard reactions, reduction to alcohol); 2. Substitution of aromatic chlorine (with amines, phenols, or thiols); 3. Friedel-Crafts reactions; 4. Oxidation (decomposes under strong oxidizing conditions) |
| Stability | Stable under normal storage and handling conditions; incompatible with strong oxidizers, strong bases, and reducing agents; moisture-sensitive (may absorb minor moisture) |
