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Sanhe Biochemical
1-Bromododecane
| Product name | 1-Bromododecane |
| English alias | Dodecyl bromide; Lauryl bromide; |
| Structural formula | .png) |
| Molecular formula | C12H25Br |
| Molecular weight | 249.23100 |
| Appearance | Colorless Transparent Liquid |
| Melting point | −11~−9 ℃(lit.) |
| Relative density | 1.040 g/mL at 20 ℃ |
| Boiling point | 134-135 ℃6 mm Hg(lit.) |
| Water solubility | Insoluble |
| Refractivity | n20/D 1.458(lit.) |
| Content | ≥99.0% |
| Moisture | ≤0.05% |
| Stability | Stable. Combustible. Incompatible with strong oxidizing agents, strong bases. |
| Flash point | >230 °F |
| Vapor pressure | 0.00817mmHg at 25℃ |
| Storage | The warehouse is ventilated and dried at low temperature, and stored separately from oxidants and food additives. |
| Use | Surfactants. Mainly used in organic synthesis, it is used in medicine to synthesize disinfectants such as bromogeramide and domimifen. |
| Production method | Obtained by the reaction of lauryl alcohol (n-dodecanol) with hydrobromic acid: add lauryl alcohol to an enamel glass reaction pot, stir and cool, and slowly add sulfuric acid. Stir for 1 hour, then add hydrobromic acid. The temperature gradually increased to 90-95 ℃, and the stirring reaction lasted for 8 hours. The reaction is complete, cool to 30 ℃ and let stand for 8 hours. Separate the acid layer, adjust the pH of the oil layer with dilute alkaline solution, remove the alkaline solution, and wash with 50% ethanol. Vacuum distillation is used to collect products from fractions at 140-200 ℃ (3.33kPa). The yield is over 90%. |
| UN No. | |
| Hazard class | |
| Packing group | |
| HS code | 2903399090 |
| Packing | 200KGS/Closed steel drum |
| CAS # | 143-15-7 |
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