Bromoselenobenzene

  • Benzeneselenenyl bromide
Formula
C6H5SeBr
Structure
Description
Dark brown solid. With a stench.

Registry Numbers and Inventories.
CAS
34837-55-3
EC (EINECS/ELINCS)
252-238-1
EC Index Number
034-002-00-8
EC Class
toxic, dangerous for the environment
R 23/25 33 50/53
S 20/21 28 45 60 61
UN (DOT)
2928
Beilstein/Gmelin
2039772
Beilstein Reference
3-06-00-01111
New Zealand
Listed

Properties.
Formula
C6H5BrSe
Formula mass
235.98
Melting point, °C
57 - 60
Boiling point, °C
229
Vapor pressure, mmHg
0.11 (25 C)
Density
1.898 - 1.845 g/cm3 (65.5 - 97.5 C)
Solubility in water
Insoluble
Surface tension
43.18 g/s2 (71.5 C)
Partition coefficient, pKow
4.04
Heat of vaporization
44.7 kJ/mol

Hazards and Protection.
Storage
Store in a cool, dry place. Store in a tightly closed container. Keep under a nitrogen blanket.
Handling
Do not breathe dust, vapor, mist, or gas. Do not get in eyes, on skin, or on clothing. Use only in a chemical fume hood.
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
Vacuum or sweep up material and place into a suitable disposal container.
Disposal code
9
Stability
No data.
Incompatibilities
Strong oxidizing agents.
Decomposition
Carbon monoxide, carbon dioxide, hydrogen bromide, selenium/selenium oxides.

Fire.
Flash Point,°C
92
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Extinguishing media: Use foam, dry chemical, or carbon dioxide.
Fire potential
Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.
Hazards
Contact with metals may evolve flammable hydrogen gas.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Exposure effects
   Ingestion
Poison by ingestion. The toxicological properties of this substance have not been fully investigated.
   Inhalation
The toxicological properties of this substance have not been fully investigated. Inhalation may be fatal as a result of spasm, inflammation, edema of the larynx and bronchi, chemical pneumonitis and pulmonary edema. Toxic if inhaled.
   Skin
May cause skin irritation.
   Eyes
May cause eye irritation.

First aid
 
   Ingestion
Get medical aid immediately. Wash mouth out with water.
   Inhalation
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
   Skin
Get medical aid immediately. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   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
2928
Response guide
Hazard class
6.1
Packing Group
I; II
 
HS Code
2931 00 95