1-Bromo-2-methylpropane
Synonym(s):1-Bromo-2-methylpropane;Isobutyl bromide;iso-Butyl bromide
- CAS NO.：78-77-3
- Empirical Formula: C4H9Br
- Molecular Weight: 137.02
- MDL number: MFCD00000217
- EINECS: 201-141-2
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-12-18 14:08:52
What is 1-Bromo-2-methylpropane?
Chemical properties
CLEAR LIQUID
The Uses of 1-Bromo-2-methylpropane
1-Bromo-2-methylpropane is used as a synthetic reagent for the preparation of 1-ethyl-1,3-isobutylimidazolium bromide by reaction with 1-ethylimidazole.
What are the applications of Application
1-Bromo-2-methylpropane is a synthesis reagent for 1-ethyl-1,3-isobutylimidazolium bromide
Safety Profile
Questionable carcinogen with experimental neoplastigenic data. Moderately toxic by intraperitoneal route. A dangerous fire hazard when exposed to heat or flame. When heated to decomposition it emits toxic fumes of Br-. See also BROMIDES.
Purification Methods
Partially hydrolyse it to remove any tertiary alkyl halide, then fractionally distil it, then wash it with conc H2SO4, water and aqueous K2CO3, then redistil it from dry K2CO3. [Dunbar & Hammett J Am Chem Soc 72 109 1950, Beilstein 1 IV 294.]
Properties of 1-Bromo-2-methylpropane
| Melting point: | -119 °C |
| Boiling point: | 90-92 °C(lit.) |
| Density | 1.26 g/mL at 20 °C(lit.) |
| vapor pressure | 41 hPa (20 °C) |
| refractive index | n |
| Flash point: | 65 °F |
| storage temp. | Store below +30°C. |
| solubility | 0.51g/l slightly soluble |
| form | Liquid |
| color | Clear colorless |
| Water Solubility | 0.51 g/L (18 ºC) |
| Merck | 14,5135 |
| BRN | 1730915 |
| Dielectric constant | 4.0（-7℃） |
| Stability: | Volatile |
| CAS DataBase Reference | 78-77-3(CAS DataBase Reference) |
| NIST Chemistry Reference | Propane, 1-bromo-2-methyl-(78-77-3) |
| EPA Substance Registry System | Propane, 1-bromo-2-methyl- (78-77-3) |
Safety information for 1-Bromo-2-methylpropane
| Signal word | Danger |
| Pictogram(s) |
 Flame Flammables GHS02 |
| GHS Hazard Statements |
H225:Flammable liquids |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233:Keep container tightly closed. P240:Ground/bond container and receiving equipment. P241:Use explosion-proof electrical/ventilating/lighting/…/equipment. P242:Use only non-sparking tools. P243:Take precautionary measures against static discharge. |
Computed Descriptors for 1-Bromo-2-methylpropane
| InChIKey | HLVFKOKELQSXIQ-UHFFFAOYSA-N |
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