2,2-Dibromopropane
- CAS NO.:594-16-1
- Empirical Formula: C3H6Br2
- Molecular Weight: 201.89
- MDL number: MFCD00000119
- EINECS: 209-828-9
- SAFETY DATA SHEET (SDS)
- Update Date: 2023-06-08 17:06:37
What is 2,2-Dibromopropane?
Chemical properties
clear colorless to light yellow liquid
The Uses of 2,2-Dibromopropane
2,2-dibromopropane is used in organic synthesis. dimethyl isopropenylsuccinate was formed as a by-product in the reaction of 2,2-dibromopropane.
Preparation
2,2-Dibromopropane synthesis: Ethyl bicyclic phosphite (3.5g, 0.025mole) and acetone (1.5g, 1. 9ml, 0.025mole) were dissolved in thirty ml benzene in a one-neck 100ml 19/22 standard taper flask and the solution was cooled to 5° by an ice bath. The solution was stirred by a magnetic stirrer and bar, and to it was added bromine (4g, 0.025mole) dropwise from a dropping funnel. The reaction proceeded immediately as no dibromide intermediate appeared, and after completion of halogen addition the solution was stirred for half an hour in the cold, and then analyzed for dihaloalkane . Analysis on the Beckman GC-2A Gas Chr omatograph indicated the presence of 2,2-Dibromopropane, and the yield was calculated as previously described. Yield: 1.56g, 31%.
2,2-dibromopropane is also prepared by Hydrogen bromide and propyne.
Properties of 2,2-Dibromopropane
Melting point: | -44.69°C (estimate) |
Boiling point: | 114 °C (740 mmHg) |
Density | 1.78 |
refractive index | 1.495-1.499 |
Flash point: | 113 °C |
form | Liquid |
color | Colorless to pale yellow |
EPA Substance Registry System | Propane, 2,2-dibromo- (594-16-1) |
Safety information for 2,2-Dibromopropane
Signal word | Warning |
Pictogram(s) |
Exclamation Mark Irritant GHS07 |
GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P280:Wear protective gloves/protective clothing/eye protection/face protection. P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P405:Store locked up. |
Computed Descriptors for 2,2-Dibromopropane
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