1,3-Dibromobenzene

  • m-Dibromobenzene
Formula
C6H4Br2
Structure
Description
Clear, light yellow liquid.

Registry Numbers and Inventories.
CAS
108-36-1
EC (EINECS/ELINCS)
203-574-2
EC Class
irritant
R 36/38
RTECS
CZ1790000
RTECS class
Other
UN (DOT)
2711
Beilstein/Gmelin
1904538
Beilstein Reference
4-05-00-00682
Canada DSL/NDSL
NDSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed

Properties.
Formula
C6H4Br2
Formula mass
235.91
Melting point, °C
-7
Boiling point, °C
218
Vapor pressure, mmHg
0.2 (25 C)
Vapor density (air=1)
8.16
Density
1.952 g/cm3 (20 C)
Solubility in water
Insoluble
Refractive index
1.6083 (17 C)
Partition coefficient, pKow
2.72
Heat of fusion
13.2 kJ/mol
Heat of vaporization
43.5 kJ/mol

Hazards and Protection.
Storage
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Protection
Wear protective gloves and clothing and safety goggles.
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
Make no contact with the spilled material. ELIMINATE all ignition sources and ground all equipment. Stop leak if you can do it without risk. A vapor suppressing foam may be used to reduce vapors. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. Use clean non-sparking tools to collect absorbed material.
Stability
Stable under ordinary conditions of use and storage.
Incompatibilities
Incompatible with strong oxidizing agents.
Decomposition
Can produce carbon dioxide, carbon monoxide and hydrogen bromide on decomposition.

Fire.
Flash Point,°C
93
Upper exp. limit, %
9.8
Lower exp. limit, %
1.9
Fire fighting
Use of water spray when fighting fire may be inefficient. Small Fires: Dry chemical, carbon dioxide, water spray or alcohol-resistant foam. Large Fires: Water spray, fog or alcohol-resistant foam. Use water spray or fog; do not use straight streams. Do not use dry chemical extinguishers to control fires involving nitromethane or nitroethane.
Fire potential
HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.
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
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Exposure effects
The toxological properties of this substance have not been fully investigated.
   Inhalation
Vapors may cause dizziness or suffocation. May cause irritation or burns.
   Skin
May cause irritation or burns.
   Eyes
See Skin.

First aid
 
   Ingestion
If swallowed, DO NOT INDUCE VOMITING. Give large quantities of water. Never give anything by mouth to an unconscious person. Get medical attention immediately.
   Inhalation
If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Prompt action is essential.
   Skin
In case of contact, immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before re-use.
   Eyes
In case of eye contact, immediately flush with plenty of water for at least 15 minutes.

Transport.
UN number
2711
Response guide
Hazard class
3
36. Halogenated hydrocarbons
HS Code
2903 69 90