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513-31-5

Basic Information
CAS No.: 513-31-5
Name: 1-Propene, 2,3-dibromo-
Article Data: 38
Cas Database
Molecular Structure:
Molecular Structure of 513-31-5 (1-Propene, 2,3-dibromo-)
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
Melting Point: N/A
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.
Transport Information: N/A
PSA: 0.00000
LogP: 2.28990
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    2,3-Dibromopropene Basic information Product Name: 2,3-Dibromopropene Synonyms: 2,3-DIBROMOPROPENE;2,3-DIBROMO-1-PROPENE;2-BROMOALLYL BROMIDE;1,2-Dibromo-2-propene;2,3-dibromo-1-propen;2,3-dibromo-prop-1-

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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.