Copper(II) bromide

  • Copper bromide
  • Copper dibromide
  • Cupric bromide
Formula
CuBr2
Structure
Description
Odorless, blue gray crystals.
Uses
As intensifier in photography, as brominating agent in organic synthesis, as humidity indicator, as wood preservative, in solid electrolyte battery, as stabilizer for acetylated polyformaldehyde.

Registry Numbers and Inventories.
CAS
7789-45-9
EC (EINECS/ELINCS)
232-167-2
R 22 34
S 26 36/37/39 45
UN (DOT)
1759
Merck
13,2656
Beilstein/Gmelin
9283 (G)
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
Br2Cu
Formula mass
223.35
Melting point, °C
498
Boiling point, °C
900
Density
4.77 g/cm3 (25 C)
Solubility in water
Very soluble

Hazards and Protection.
Storage
Store in a cool, dry place. Store in a tightly closed container.
Handling
Wash thoroughly after handling. Wash hands before eating. Use only in a well ventilated area. Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes. Avoid ingestion and inhalation.
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. Clean up spills immediately, using the appropriate protective equipment. Avoid generating dusty conditions. Provide ventilation.
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Moisture, potassium, and alkali metals.
Decomposition
Irritating and toxic fumes and gases, hydrogen bromide, copper fumes.

Fire.
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Substance is noncombustible. Extinguishing media: Substance is noncombustible; use agent most appropriate to extinguish surrounding fire.
Hazards
Irritating hydrogen bromide gas may form in fire.
Combustion products
Irritating hydrogen bromide gas may form in fire.
Health
2
 
Flammability
0
 
 
Reactivity
0
 

Health.
Exposure effects
May cause liver and kidney damage. Chronic ingestion may cause bromism characterized by disturbances of the central nervous system, skin and digestive tract.
   Ingestion
Causes gastrointestinal irritation with nausea, vomiting and diarrhea. May cause blood abnormalities. Ingestion of large amounts of copper salts may cause bloody stools and vomit, low blood pressure, jaundice and coma.
   Inhalation
Dust is irritating to the respiratory tract. May cause severe irritation of the upper respiratory tract with pain, burns, and inflammation.
   Skin
Causes skin irritation.
   Eyes
Causes eye irritation.

First aid
 
   Ingestion
Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
   Skin
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. Wash clothing before reuse.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.
UN number
1759
Response guide
USCG CHRIS Code
CPB