2-BROMOALLYL BROMIDE
2,3-Dibromopropene
CAS: 513-31-5
Molecular Formula: C3H4Br2
2-BROMOALLYL BROMIDE - Names and Identifiers
| Name | 2,3-Dibromopropene |
| Synonyms | 2,3-DIBROMOPROPENE 2,3-Dibromopropene 2-BROMOALLYL BROMIDE 2,3-dibromo-1-propen 2,3-Dibromo-1-propene 2,3-dibromoprop-1-ene 2,3-DIBROMO-1-PROPENE 1,2-Dibromo-2-propene 2-Bromo-2-propenyl bromide |
| CAS | 513-31-5 |
| EINECS | 208-155-8 |
| InChI | InChI=1/C3H4Br2/c1-3(5)2-4/h1-2H2 |
| InChIKey | YMFWYDYJHRGGPF-UHFFFAOYSA-N |
2-BROMOALLYL BROMIDE - Physico-chemical Properties
| Molecular Formula | C3H4Br2 |
| Molar Mass | 199.87 |
| Density | 1.934g/mLat 25°C(lit.) |
| Boling Point | 42-44°C17mm Hg(lit.) |
| Flash Point | 178°F |
| Water Solubility | insoluble |
| Vapor Presure | 7.3mmHg at 25°C |
| Appearance | Liquid |
| Color | Clear light yellow to brown |
| Merck | 14,3025 |
| BRN | 878169 |
| Storage Condition | Keep in dark place,Inert atmosphere,Store in freezer, under -20°C |
| Sensitive | Moisture Sensitive |
| Refractive Index | n20/D 1.544(lit.) |
| Physical and Chemical Properties | Colorless liquid. Boiling point 140-143 ℃,75-76 ℃(10kPa),42-43 ℃(2.4kPa), relative density 1.9336(20/4 ℃), refractive index 1.5157, insoluble in water, miscible with halogenated hydrocarbons. |
2-BROMOALLYL BROMIDE - Risk and Safety
| Risk Codes | R20/22 - Harmful by inhalation and if swallowed. R41 - Risk of serious damage to eyes R36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S39 - Wear eye / face protection. S37/39 - Wear suitable gloves and eye/face protection |
| UN IDs | 2810 |
| WGK Germany | 3 |
| RTECS | UC8200000 |
| FLUKA BRAND F CODES | 10-23 |
| HS Code | 29033036 |
| Hazard Class | 6.1(b) |
| Packing Group | III |
2-BROMOALLYL BROMIDE - Reference Information
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| use | organic synthesis intermediate. |
| production method | 1,2,3-tribromopropane and solid sodium hydroxide are heated and boiled, and the product is distilled. The distillate contains 2,3-dibromopropene and unreacted 1,2,3-tribromopropane. After washing with water, it is distilled under reduced pressure, and the former fraction is collected at 95 ℃(10kPa) and refractionated, the 73-76 ℃(10kPa) fraction was collected to obtain 2, 3-dibromopropene with a yield of 74-84%. |
| category | flammable liquid |
| toxicity classification | poisoning |
| acute toxicity | vein-mouse LD50: 100 mg/kg |
| flammability hazard characteristics | it is more flammable when exposed to open flames, high temperatures, and oxidants; combustion produces toxic bromide smoke |
| storage and transportation characteristics | warehouse ventilation and low temperature drying; Store separately from oxidant; Not suitable for long storage to prevent polymerization |
| fire extinguishing agent | dry powder, dry sand, carbon dioxide, foam, 1211 fire extinguishing agent |
Last Update：2024-04-10 22:29:15
