| 英文名 | Benzaldehyde |
|---|---|
| 类型 | 芳香族化合物 |
| CAS号 | 100-52-7 |
| 物理性质 | M 106.1, f -26℃, b 62-58℃/10mm, 179.0℃/760mm, d420 1.044, nD20 1.5455, pK25 -7.1 (aqueous H2SO4). |
| 提纯方法 | To diminish its rate of oxidation, benzaldehyde usually contains additives such as hydroquinone or catechol. It can be purified via its bisulfite addition compound but usually distillation (under nitrogen at reduced pressure) is sufficient. Prior to distillation it is washed with NaOH or 10% Na2CO3(until no more CO2 is evolved), then with saturated Na2SO3 and H2O, followed by drying with CaSO4, MgSO4 or CaCl2. [Beilstein 7 IV 505.] |
| 相关文献 | 暂无权限 |
扩展信息
