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| CAS No.: | 78-75-1 |
|---|---|
| Name: | 1,2-Dibromopropane |
| Molecular Structure: | |
|
|
|
| Formula: | C3H6Br2 |
| Molecular Weight: | 201.889 |
| Synonyms: | 2,3-Dibromopropane;Propylene dibromide; |
| EINECS: | 201-139-1 |
| Density: | 1.926 g/cm3 |
| Melting Point: | -55 °C |
| Boiling Point: | 140.4 °C at 760 mmHg |
| Flash Point: | 21.9 °C |
| Solubility: | slightly soluble in water |
| Appearance: | Colorless liquid |
| Hazard Symbols: |
 Xn
|
| Risk Codes: | 10-20/22-36/37/38-20/21/22 |
| Safety: | 23-24/25-36/37/39-26-16 |
| Transport Information: | UN 1993 3/PG 3 |
| PSA: | 0.00000 |
| LogP: | 2.16470 |
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Chemistry
Molecular Formula: C3H6Br2 
Formula Weight: 201.89
IUPAC Name: 1,2-Dibromopropane
Synonyms: 1,2-Propylenebromide ; 2-Bromopropylbromide ; (RS)-Dibrompropan ; Propane,1,2-dibromo- ; 1,2-Propylene Dibromide
Melting Point: -55 °C
Boiling Point: 140-142 °C(lit.)
Density of 2,3-Dibromopropane (78-75-1): 1.937 g/mL at 25 °C(lit.)
Refractive index : n20/D 1.519(lit.)
Flash Point: 35 °C
Storage temp.: Flammables area
Water Solubility: 2,3-Dibromopropane (78-75-1) is slightly soluble
Chemical Properties: 2,3-Dibromopropane (78-75-1) is a colorless liquid.
Stability: 2,3-Dibromopropane (78-75-1) is stable. Flammable. Incompatible with strong oxidizing agents, strong bases, magnesium.
Uses
2,3-Dibromopropane (78-75-1) is used as an intermediate, raw material, chemical reagent and solvent in organic synthesis.
Production
1. 2,3-Dibromopropane (78-75-1) is formed from propylene by direct bromination.
2. It is derived from bromopropane by bromination.
3. Propanol bromide method
Toxicity Data With Reference
| 1. | sln-dmg-orl 5 mmol/L | EXPEAM Experientia. 30 (1974),621. | ||
| 2. | orl-rat LD50:741 mg/kg | GISAAA Gigiena i Sanitariya. 41 (3)(1976),105. | ||
| 3. | ihl-rat LC50:12 g/m3/4H | 85GMAT Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure Izmerov, N.F., et al.,Moscow, USSR.: Centre of International Projects, GKNT,1982,43. | ||
| 4. | orl-mus LD50:676 mg/kg | GISAAA Gigiena i Sanitariya. 41 (3)(1976),105. | ||
| 5. | ipr-mus LD50:75 mg/kg | NTIS** National Technical Information Service. (Springfield, VA 22161) (Formerly U.S. Clearinghouse for Scientific and Technical Information) AD691-490 . |
Consensus Reports
Reported in EPA TSCA Inventory.
Safety Profile
Poison by intraperitoneal route. Moderately toxic by ingestion. Mutation data reported. When heated to decomposition it emits toxic fumes of Br−. See also PROPANE and BROMIDES.
Safety: DANGER: FLAMMABLE, irritates skin, eyes, lungs
Hazard Codes : Xn: Harmful 
Risk Statements : 10: Flammable
20/22: Harmful by inhalation and if swallowed
36/37/38: Irritating to eyes, respiratory system and skin
20/21/22: Harmful by inhalation, in contact with skin and if swallowed
Safety Statements : 23: Do not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer)
24/25: Avoid contact with skin and eyes
36/37/39: Wear suitable protective clothing, gloves and eye/face protection
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
16: Keep away from sources of ignition - No smoking
RIDADR : UN 1993 3/PG 3
WGK Germany : 3
RTECS : TX8574000
HazardClass : 3
PackingGroup : III
HS Code : 29033036
Standards and Recommendations
ASSAY: 98.0% MIN
WATER: 0.1% max
Specification
2,3-Dibromopropane (78-75-1) is a colorless liquid slightly soluble in water (miscible with organic solvents). It is stable under ordinary conditions and mainly used as a intermediate for the synthesis of pharmaceuticals and other organic compounds. 2,3-Dibromopropane (78-75-1) is considered non-flammable.