1-Bromobutane

  • Butyl bromide
  • n-Butyl bromide
Formula
CH3(CH2)3Br
Structure
Description
A clear colorless liquid.
Uses
In synthesis.

Registry Numbers and Inventories.
CAS
109-65-9
EC (EINECS/ELINCS)
203-691-9
EC Class
highly flammable, irritant, dangerous for the environment
R 10 36/38
S 16 23 24/25
RTECS
EJ6225000
RTECS class
Mutagen
UN (DOT)
1126
Merck
13,1552
Beilstein/Gmelin
1098260
Beilstein Reference
4-01-00-00258
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C4H9Br
Formula mass
137.03
Melting point, °C
-112
Boiling point, °C
101
Vapor pressure, mmHg
40 (25 C)
Vapor density (air=1)
4.72
Density
1.276 g/cm3 (20 C)
Solubility in water
600 mg/L
Viscosity
0.633 cp; (20 C)
Surface tension
26.33 g/s2 (20 C)
Refractive index
1.4398 (20 C)
Partition coefficient, pKow
2.75
Heat of vaporization
36.2 kJ/mol

Hazards and Protection.
Storage
Keep away from sources of ignition. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Flammables-area.
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Ground and bond containers when transferring material. Use spark-proof tools and explosion proof equipment. Avoid contact with skin and eyes. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Avoid ingestion and inhalation. Do not ingest or inhale. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.
Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Wear a self contained breathing apparatus and appropriate Personal protection. (See Exposure Controls, Personal Protection section). Scoop up with a nonsparking tool, then place into a suitable container for disposal. Remove all sources of ignition. Absorb spill using an absorbent, non-combustible material such as earth, sand, or vermiculite.
Disposal code
2
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents, strong bases, magnesium, sodium, potassium.
Decomposition
Carbon monoxide, carbon dioxide, hydrogen bromide.

Fire.
Flash Point,°C
24
Autoignition, °C
265
Upper exp. limit, %
6.6
Lower exp. limit, %
2.6
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Can release vapors that form explosive mixtures at temperatures above the flashpoint. Extinguishing media: For small fires, use water spray, dry chemical, carbon dioxide or chemical foam.
Fire potential
Dangerous, when exposed to heat or flame.
Hazards
Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers.
Combustion products
Toxic fumes of hydrogen bromide.
Health
1
 
Flammability
3
 
 
Reactivity
0
 

Health.
Exposure effects
The toxological properties of this substance have not been fully investigated.
   Ingestion
May cause irritation of the digestive tract. The toxicological properties of this substance have not been fully investigated.
   Inhalation
May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.
   Skin
Causes skin irritation.
   Eyes
May cause eye irritation. May cause conjunctivitis.

First aid
 
   Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid immediately.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid if cough or other symptoms appear.
   Skin
Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists.
   Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.
UN number
1126
Response guide
Hazard class
3
Packing Group
II
 
USCG CHRIS Code
BBU
 
36 Halogenated hydrocarbons
HS Code
2903 30 36
 
Std. Transport #
4909129 4909127