Cadmium bromide

  • Cadmium dibromide
Formula
CdBr2
Structure
Description
Odorless white solid.
Uses
Photography, process engraving, lithography.

Registry Numbers and Inventories.
CAS
7789-42-6
EC (EINECS/ELINCS)
232-165-1
RTECS
EU9935000
RTECS class
Tumorigen
UN (DOT)
2570
Merck
12,1651
Beilstein/Gmelin
9282 (G)
RCRA
D006
Canada DSL/NDSL
DSL
US TSCA
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
Br2CdH(x)O(x)
Formula mass
272.21
Melting point, °C
567
Boiling point, °C
863
Vapor pressure, mmHg
0.015 (400 C)
Vapor density (air=1)
8
Density
5.19 g/cm3
Solubility in water
Soluble
Dielectric constant
3.53
Heat of fusion
20.9 kJ/mol

Hazards and Protection.
Storage
Tightly closed containers. Keep away from heat and water.
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
NIOSH approved respirator; goggles or face shield; rubber gloves.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
ELIMINATE all ignition sources. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS.
Stability
No data.
Incompatibilities
A mixture of potassium and cadmium bromide produces a strong explosion on impact.
Decomposition
When heated to decomposition it emits toxic fumes of cadmium and hydrogen bromide.

Fire.
Fire fighting
Water in flooding quantities as a fog, alcohol foam, carbon dioxide, dry chemicals. Contain runoff.
Fire potential
Nonflammable.
Hazards
Contact with metals may evolve flammable hydrogen gas.
Combustion products
Toxic cadmium oxide fumes may form in fires.

Health.
Exposure limit(s)
NIOSH REL*: Ca See Appendix A [*Note: The REL applies to all Cd compounds (as Cd).] OSHA PEL*: [1910.1027] TWA 0.005 mg/m3 *Note: The PEL applies to all Cd compounds (as Cd).] IDLH Ca [9 mg/m3 (as Cd)]
Carcinogin
O, G-A2, I-1, N-1, CP65
Exposure effects
Fever may occur with chronic intoxication. CNS effects of acute exposures have included delayed parkinsonism. Smoking and industrial exposure to cadmium has resulted in increased placental levels of cadmium.
   Ingestion
Ingestion - nausea, vomiting, abdominal pain and cramping, diarrhea, salivation, dry mouth, and substernal pain occur.
   Inhalation
TOXIC; inhalation, ingestion, or skin contact with material may cause severe injury or death. Effects of contact or inhalation may be delayed.
   Skin
Skin eruptions and pruritus may occur.
   Eyes
Pupils may be normal, miotic or mydriatic. Nystagmus is common.

First aid
 
   Ingestion
Induce vomiting; allay GI irritation by giving milk or egg whites at frequent intervals; perform gastric lavage; seek medical attention.
   Inhalation
Remove patient to fresh air; seek medical attention.
   Skin
Remove and isolate contaminated clothing and shoes. Immediately flush with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin.
   Eyes
Flush with water for at least 15 min.

Transport.
UN number
2570
Response guide
Hazard class
6.1
Packing Group
I; II; III
 
USCG CHRIS Code
CMB