Names
IUPAC nameCalcium bromide
Other names
Calcium dibromide
Identifiers
CAS Number: 7789-41-5
JSmol: Interactive image
ChEBI: CHEBI:31338
ChemSpider: 23010
ECHA InfoCard: 100.029.240
EC Number: 232-164-6
PubChem: 24608
RTECS number: EV9328000
UNII: 87CNY2EEBH
Properties
Chemical formula: CaBr
Molar mass: 199.89 g/mol (anhydrous)
235.98 g/mol (dihydrate)
Appearance: hygroscopic
Density: 3.353 g/cm
Melting point: 730 °C (1,350 °F; 1,000 K)
Boiling point: 1,935 °C (3,515 °F; 2,208 K) (anhydrous)
810 °C (dihydrate)
Solubility in water: 125 g/100 mL (0 °C)
143 g/100 ml (20 °C)
312 g/100 mL (100 °C)
Solubility: soluble
K: 9
Magnetic susceptibility: -73.8·10 cm/mol−63
Structure
Crystal structure: rhomboid
Thermochemistry
Specific
heat capacity: 75 J/mol K
Std molar
entropy: 130 J/mol K
Std enthalpy of
formation: -647.9 kJ/mol
Gibbs free energy: -656.1 kJ/mol
Hazards
NFPA 704:
LD
median dose: 4100 mg/kg (rat, oral)
1580 mg/kg (mouse, subcutaneous)
Related compounds
anions: Calcium fluoride
cations: Beryllium bromide
Except where otherwise noted, data are given for materials in their(at 25 °C [77 °F], 100 kPa).Except where otherwise noted, data are given for materials in their(at 25 °C [77 °F], 100 kPa).