2-Bromo-3-methyl-2-butene

  • 3-Bromo-2-methyl-2-butene
  • 1-Bromo-1,2,2-trimethylethylene
  • Bromotrimethylethene
  • Trimethylbromoethylene
Formula
C5H9Br
Structure
Description
Copper added as stabilizer.

Registry Numbers and Inventories.
CAS
3017-70-7
UN (DOT)
1992
Beilstein Reference
4-01-00-00824
Japan ENCS (MITI)
Listed

Properties.
Formula
C5H9Br
Formula mass
149.03
Melting point, °C
-101
Boiling point, °C
119.5
Vapor pressure, mmHg
21 (25 C)
Critical temperature
328
Critical pressure
40.20
Density
1.2773 g/cm3 (20 C)
Solubility in water
0.21 g/L (25 C)
Refractive index
1.4738 (20<sup>o</sup>C)
Partition coefficient, pKow
3.23
Heat of vaporization
34.08 kJ/mol

Hazards and Protection.
Protection
Compatible chemical-resistant gloves. Chemical safety goggles. Protective clothing.

Fire.
Flash Point,°C
25
Fire fighting
Extinguish with water spray, carbon dioxide, dry chemical powder or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
Hazards
Emits toxic fumes under fire conditions.

Health.
Exposure effects

First aid
 
   Ingestion
If swallowed, wash out mouth with water provided person is conscious. Call a physician.
   Inhalation
If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.
   Skin
In case of contact, immediately wash skin with soap and copious amounts of water. Remove contaminated clothing and shoes. Call a physician.
   Eyes
In case of contact with eyes, flush with copious amounts of water for at least 15 minutes. Assure adequate flushing by separating the eyelids with fingers. Call a physician.

Transport.
UN number
1992
Response guide
Hazard class
3
Packing Group
III