Identification Molecular formula CuBr2 CAS number 7789-45-9 Solubility details Solubility in water 55.70g/L State State solid Melting point (Celsius) 498.00 Melting point (Kelvin) 771.00 Boiling point (Celsius) 900.00 Boiling point (Kelvin) 1 173.00 General information Appearence greyish black crystals Molar mass 223.3700g/mol Density 4.7100g/cm3 Copper (II) Bromide is harmful if swallowed. It affects the central nervous system, brain, eyes, liver, and kidneys. It causes irritation to skin, eyes, and respiratory tract.