Calcium bromide hydrate (CaBr2•xH2O)-Powder

Characteristic

Calcium bromide is the name for compounds with the chemical formula CaBr2(H₂O)x. Individual compounds include the anhydrous material (x = 0), the hexahydrate (x = 6), and the rare dihydrate (x = 2). All are white powders that dissolve in water, and from these solutions crystallizes the hexahydrate.

Chemical formula: CaBr₂•XH₂O

Molar mass: 235.98 g/mol

Appearance: anhydrous is hygroscopic colorless crystals; sharp saline taste

Density: 3.353 g/cm³

Melting point: 730 °C (1,350 °F; 1,000 K)

Boiling point: 810 °C

Solubility in water: 125 g/100 mL (0 °C); 143 g/100 ml (20 °C); 312 g/100 mL (100 °C)

Solubility in alcohol, acetone: soluble

Acidity (pKa): 9

Magnetic susceptibility (χ): -73.8•10−6 cm³/mol

Application

Calcium bromide hydrate is used as freezing mixtures, food preservatives and photography. Its aqueous solution is used in drilling fluids and fire retardants.