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| CAS No.: | 513-31-5 |
|---|---|
| Name: | 2,3-Dibromopropene |
| Article Data: | 38 |
| Molecular Structure: | |
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|
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| Formula: | C3H4 Br2 |
| Molecular Weight: | 199.873 |
| Synonyms: | Propene,2,3-dibromo- (6CI,7CI,8CI); 1,2-Dibromo-2-propene; 2,3-Dibromo-1-propene;2,3-Dibromopropene; 2,3-Dibromopropylene; 2-Bromoallyl bromide; NSC 6200; a-Epidibromohydrin |
| EINECS: | 208-155-8 |
| Density: | 2.13 |
| Boiling Point: | 42-44 ºC (17 mmHg) |
| Flash Point: | 81 ºC |
| Solubility: | insoluble in water |
| Appearance: | clear light yellow liquid |
| Hazard Symbols: |
|
| Risk Codes: | R36/37/38 |
| Safety: | Poison by intravenous route. Mutation data reported. When heated to decomposition it emits toxic fumes of Br−. |
| PSA: | 0.00000 |
| LogP: | 2.28990 |
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Chemistry
Molecular Formula: C3H4Br2 
Formula Weight: 199.87
IUPAC Name: 2,3-Dibromoprop-1-ene
Synonyms: 2,3-Dibromopropylene ; α-Epidibromohydrin ; 2,3-Dibromo-prop-1-ene ; 1,2-Dibromo-2-propene
Boiling Point: 42-44 °C at 17 mm Hg(lit.)
Density of 2,3-Dibromopropene (513-31-5): 1.934 g/mL at 25 °C(lit.)
Refractive index : n20/D 1.544(lit.)
Flash Point: 178 °F
Storage temp.: Freezer
Water Solubility : 2,3-Dibromopropene (513-31-5) is insoluble
Sensitive: Moisture Sensitive
Chemical Properties: 2,3-Dibromopropene (513-31-5) is a clear light yellow to brown liquid
Uses
2,3-Dibromopropene (513-31-5) is used in the synthesis of organic intermediate.
Production
Heating 1,2,3-3 bromopropane and solid sodium hydroxide until boiling, then distillating the product. The distillate contains 2,3-dibromo-propene and unreacted 1,2,3-3 bromopropane. It is reduced pressure distillation after washing and we should collect 95 °C (10kPa) distillate to have re-fractionation. Then collecting 73-76 °C (10kPa) distillate again to have fraction, we can obtain 2,3-Dibromopropene (513-31-5) .
Toxicity Data With Reference
| 1. | mmo-sat 100 nmol/plate | ENMUDM Environmental Mutagenesis. 2 (1980),59. | ||
| 2. | ivn-mus LD50:100 mg/kg | CSLNX* U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. (Aberdeen Proving Ground, MD 21010) NX#03619 . |
Consensus Reports
Reported in EPA TSCA Inventory.
Safety Profile
Poison by intravenous route. Mutation data reported. When heated to decomposition it emits toxic fumes of Br−.
Safety: CAUTION: May irritate eyes, skin, and respiratory tract
Hazard Codes: Xn: Harmful,
Xi: Irritant 
Risk Statements: 20/22: Harmful by inhalation and if swallowed
41: Risk of serious damage to eyes
36/37/38: Irritating to eyes, respiratory system and skin
Safety Statements: 26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
39: Wear eye/face protection
37/39: Wear suitable gloves and eye/face protection
RIDADR: 2810
WGK Germany: 3
RTECS: UC8200000
F: 10: Keep under argon
23: Sensitive to air
HazardClass: 6.1(b)
PackingGroup: III
HS Code: 29033036
Specification
2,3-Dibromopropene (513-31-5) is a clear light yellow to brown liquid and insoluble in water. It is used in the synthesis of organic intermediate. It should keep in a cold drying place.